Density Sentence Examples

density
  • One half of the earth has therefore a greater density than the other.

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  • One of the most remarkable of Airy's researches was his determination of the mean density of the earth.

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  • The density of the population is 175 to the sq.

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  • The density of helium has been determined by Ramsay and Travers as 1.98.

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  • In these proportions the density of the alloy is less than the mean of its constituent metals.

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  • The earth would intercept an amount of it proportional to the solid angle it subtends at the sun; that is to say, it would receive a deposit of meteoric matter about one-tenth of a millimetre, of density say 2, over its whole surface in the course of the year.

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  • It is easy to calculate that this would be produced by an annual fall of matter equal to one nineteen millionth of the sun's mass, which would make an envelope eight metres thick, at the sun's mean density; this would be collected during the year from a spherical space extending beyond the orbit of Jupiter.

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  • Julius's phenomenon seems inseparable from grazing incidence, and hence any explanation it supplies depends upon his hypothetical tubular structure for layers of equal density.

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  • The passes across these ranges are comparatively low, but they are difficult because of the precipitous character of their Pacific slopes and the density of the vegetation on them.

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  • The resistance of clay to percolation by water depends chiefly upon the density of the clay, while that density is rapidly reduced if the clay is permitted to absorb water.

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  • On the restoration of the pressure, the density will be again increased by the reduction of the water-filled interstices, and the percolation will be correspondingly checked.

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  • It is obvious that the angles at the base of such a hypothetical dam must depend upon the relation between its density and that of the water.

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  • These subjects are discussed in the articles Density; Thermometry; Calorimetry; Diffusion; Conduction Of Heat; and Condensation Of Gases.

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  • The coma itself is very rarefied, having a density that is only about one ten thousandth of that of the Earth 's atmosphere.

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  • Ardura 70D is a high density ripstop fabric using densely packed 70 denier yarns for strength and low weight.

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  • Figure 2 Mean (±SD) relative change in scat density in each of the nine regions.

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  • Low density material allows greater radiation to reach the scintillation detector.

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  • The computed density therefore does not correspond to a self-consistent atomic calculation.

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  • Eleven out of 16 studies in postmenopausal women showed improvements in bone density with either exercise or exercise plus calcium or estrogen.

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  • The singularity theorems imply the universe had an infinite density at some time in the past.

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  • Thus they not only penetrate all cavities in an exceedingly intrusive manner, but exert pressures in all directions, which, owing to the density of the asphalt, are more than 40 greater than would be produced by a corresponding depth of water.

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  • This comparison verifies the steep rise of the gluon density at low x with a precision of @ 15-20 %.

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  • This supposes the present density nearly uniform; if it is not uniform, any amount added to the former period is subtracted from the latter.

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  • It can be shown, for example, that for masonry having a density of 3, water being 1, the figure of minimum section is a right-angled triangle, with the water against its vertical face; while for a greater density the water face must lean towards the water, and for a less density away from the water, so that the water may lie upon it.

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  • As the density of the heaviest rocks is only 3, that of a masonry dam must be below 3, and in practice such works if well constructed vary from 2.2 to 2.6.

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  • For a density of 2.5 the base would therefore be 44.7% of the height.

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  • The late Sir Benjamin Baker, F.R.S., suggested that the stresses might be measured by experiments with elastic models, and among others, experiments were carried out by Messrs Wilson and Gore a with indiarubber models of plane sections of dams (including the foundations) who applied forces to represent the gravity and water pressures in such a manner that the virtual density of the rubber was increased many times without interfering with the proper ratio between gravity and water pressure, and by this means the strains produced were of sufficient magnitude to be easily measured.

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  • The line of pressures as generally given for this dam with the reservoir full, on the hypothesis that the density of the masonry was a little over 2, is shown by long and short dots in fig.

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  • Materials actu ally collected from the dam indicate that the mean density did not exceed I.

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  • And the weight of air displaced depends upon the density of the air at the time of weighing, and therefore the barometer reading must be taken.

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  • The retort carbon products* formed as a dense deposit on the crown of the retort by the action of the high temperature on the hydrocarbons is, however, carbon in a very pure form, and, on account of its density, is largely used for electrical purposes.

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  • The population of Wisconsin in 1890 was 1,686,880 (exclusive of 6450 persons specially enumerated); in 1900 the total was 2,069,042 - an increase of 22.2% on the basis of the total at each enumeration; and in 1910 it reached a total of 2,333,860.2 The density of the population in 1910 was 42.2 to the square mile.

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  • A temperature of 70, and a reversal of the current (of low density) between two cast iron electrodes every few minutes, are the best working conditions.

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  • In 1826 and 1828, Whewell was engaged with Airy in conducting experiments in Dolcoath mine, Cornwall, in order to determine the density of the earth.

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  • This is one of the most troublesome problems in astronomy because, owing to the ever varying density of the atmosphere, arising from differences of temperature, and owing to the impossibility of determining the temperature with entire precision at any other point than that occupied by the observer, the amount of refraction must always be more or less uncertain.

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  • Not the slightest change in the direction of such a star when in this position has ever been detected, and it is certain that if any occurs it can be but a minute fraction of a second of arc. As an atmosphere equal to ours in density would produce a deviation of an important fraction of a degree, it may be said that the moon can have no atmosphere exceeding in density the b b l o o that of the earth.

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  • As seen from the above table the density of the population is unequal in the various crown lands.

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  • In the bestwatered districts agriculture is naturally of the greatest importance, except where the density of the forest renders the work of clearing too arduous.

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  • Ice forms over fresh water if the temperature of the air has been for a sufficient time at or below the freezing-point; but not until the whole mass of water has been cooled down to its point of maximum density, so that the subsequent cooling of the surface can give rise to no convection currents, is freezing possible.

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  • If unit mass of a solution contain m grammes of an active substance and if o be the density and p be the rotary power of the solution, the specific rotary power is defined by p/m8, and the molecular rotary power is obtained from this by multiplying by the hundredth part of the molecular mass.

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  • Fresnel obtained his formulae by assuming that the optical difference of media is due to a change in the effective density of the ether, the elasticity being the same - an assumption inconsistent with his theory of double refraction - and was led to the result that the vibrations are perpendicular to the plane of polarization.

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  • Franz Neumann and James MacCullagh, starting from the opposite assumption of constant density and different elasticities, arrived at the same formulae for the intensities of the reflected light polarized in the principal azimuths, but in this case the vibrations must be regarded as parallel to the plane of polarization.

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  • At 300 metres its density is 1.253.

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  • The play of brilliant colours and of ever-changing contrasts of light and shade on those rugged mountain-sides and on the surface of the sea itself might have been expected to appeal to the most prosaic. The surface of the sea is generally smooth (seldom, however, absolutely inert as the pilgrims represented it), but is frequently raised by the north winds into waves, which, owing to the weight and density of the water, are often of great force.

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  • At the beginning of 1905, the state contained 181,roo people, giving a density of 6.9 persons per square mile.

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  • The density of population for the whole government is estimated as 3.7 or 4 per sq.

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  • The density of population being calculated at about 2.7 to 3 per sq.

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  • This principle is capable of very wide extension, the blast furnace being mainly limited in height by the strength the column of materials or "burden" has to resist crushing, under the weight due to the head adopted, and the power of the blowing engine to supply blast of sufficient density to overcome the resistance of the closely packed materials to the free passage of the spent gases.

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  • When melted the products separate on the bed (which is made of closely packed sand or other infusible substances), according to their density; the lighter earthy matters forming an upper layer of slag are drawn out by the slag hole K at the flue end into an iron wagon or bogie, while the metal subsides to the bottom of the bed, and at the termination of the operation is run out by the tap hole L into moulds or granulated into water.

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  • At that time the maximum potential development considered feasible for the island was a low density business park.

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  • Her team recently announced it had created the highest density electronically addressable memory reported to date, a 64-bit memory using molecules as switches.

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  • About 60 million cubic meters of dome and crater wall traveled to the south as a debris avalanche and pyroclastic density currents.

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  • These values depend on the density of protons and neutrons, which are collectively called baryons.

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  • With the density of baryonic matter known, the total density can be determined from measuring the baryon fraction.

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  • The living quarters must always be kept dry as it is said that wet bedding can affect density on feet.

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  • In winter wheat, crop density is an important factor in limiting seed production by red dead-nettle through the effect on weed biomass.

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  • The U.S. paper industry has managed to come up with a truly bizarre way of specifying the density of paper.

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  • The lower density of ice is caused by its structure, a hydrogen bonded tetrahedral network similar to that of diamond.

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  • The power density at the core of a fast breeder reactor is more than four times higher than that in a thermal reactor.

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  • Density was rather low to meet my expectations, except for a great abundance of Flavescent and Brown-breasted bulbuls soon considered common.

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  • To be an efficient fat burner you need to increase your muscle density.

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  • Calculates the relaxing density contribution to the derivative of the energy wrt Cartesian coordinates.

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  • The density, about 0.2 grams per cubic centimeter, means it is a gas giant like Jupiter.

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  • The solubilized mixture was then resolved by sucrose density gradient centrifugation.

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  • After density gradient centrifugation, virus particles were detected in the density zone of 1.34 g/ml.

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  • Monocytes and lymphocytes may also be obtained fresh from human blood using density centrifugation to isolate distinct cell types according to their different densities.

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  • The beams are then decked in 12mm (15mm on 900mm deep bays) high density chipboard panels.

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  • A temporary fall in high and rise in low density lipoprotein cholesterol was observed in the study population.

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  • Salinity is therefore a major factor in the density driven global scale thermohaline circulation.

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  • Difference electron density for a molecule of AMPPNP is observed in the kinase active site cleft.

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  • Weed population density may be markedly reduced using crop rotation but there has been little experimentation.

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  • This increases its density, so it sinks and flows back south in a deep current.

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  • At the active electrode there is a high current density due to the small area of the electrode.

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  • The RNHRD uses the Hologic Acclaim bone densitometer, which allows bone density to be assessed in a few minutes.

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  • Pea Forage Yield Forage yields of peas increased significantly with increased sowing density in all but the late pea harvest in 1999.

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  • The current record for areal density for a commercially released drive is 133 gigabits per square inch, according to Toshiba.

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  • The low energy density feeds require a large volume plant to process them.

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  • Factors to be considered when selecting an appropriate scanner include optical resolution, optical density, bit depth and scanning time.

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  • M Magnetic flux density A measure of the magnetic effect induced in a medium by an external field.

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  • The bone mineral density changes were compared with a control group of 15 untreated women.

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  • There were no significant differences in cortical volumetric bone mineral density (vBMD) at the radius or tibia diaphysis between the groups.

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  • Drought is also thought to be a factor causing dieback in hedgerow trees, which are not included in the UK crown density survey.

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  • For London, dwelling density rose from 48 new dwellings per hectare in 1993 to 56 in 2000.

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  • The paper discusses the possibility that horizontal advection combined with horizontal gradients in the plasma density can contribute to the radar echoes.

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  • They discussed traffic density with ATC, and eventually declared an emergency in order to get priority for landing.

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  • For damped exponentials, the ordering is by energy spectral density at the peak frequency.

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  • Matched to the tissue matrix The density of the tissue matrix in the skin has implications for dermal fillers.

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  • A superior mattress with firm, high density hollow fiber polyester filling, to maintain high performance.

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  • For the most popular artifacts such as ceramic color standards and neutral density filters, streamlined procedures give a fast turn-around.

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  • The distributions of the flux, area, peak flux density and lifetimes of the concentrations are determined.

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  • The company can also mold polyurethane foam to any density.

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  • Further, bone mineral density of the proximal femur, lateral spine, and distal forearm was studied after eight years.

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  • A universe with nonzero size and finite energy density appears from a quantum fuzz.

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  • The density of ice is about 0.92 g cm and that of water is about 1.00 g cm at 0.

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  • For this shot, weve used a neutral density grad, a filter which is darker at the top than the bottom.

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  • There are no published EMs of material banding in sucrose density gradients.

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  • For the most part, the density looks great.

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  • The density of tubers was greatest in the parietal lobes, and tubers were more frequent in the cingulate gyrus than expected.

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  • Na + and ca 2+ ions can destroy the low density structuring in a cooperative manner.

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  • A new method of monitoring the ionosphere based on radio tomography can be used to create two-dimensional images of electron density.

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  • The best balls were made from African ivory which was considered to be of more even density than Indian ivory.

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  • A high density of enclosed hollows with some dry valleys constitute the surface karst.

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  • Define omega matter and omega lambda, to be the density and lambda, divided by the critical value.

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  • Similar trends were seen with respect to low density lipoprotein.

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  • There was no change in levels of high density lipoprotein (HDL ), the ' good ' cholesterol.

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  • The values represent the approximate logarithm of the flux density.

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  • We first estimate the far infrared luminosity density for the luminosity density for the luminosity function derived from IRAS 60 µm data.

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  • Where necessary, treatments that include mammograms, cervical smears, hormone tests, bone density scans, are available.

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  • Generally there is no point providing a solvent mask, since the solvent density generally does not provide a match to atomic features.

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  • Bosnia's population density in 1998 was 66 persons per sq km (170 per sq mi ).

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  • A high density store for positive microfilm is built.

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  • Osteoporosis affects not just the bone mineral density, but also the internal microstructure of bone.

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  • By using a triple density midsole, which they call " progressive posting.

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  • Difference density maps were used to locate the ordered solvent molecules, which were included in the refinement.

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  • Case 8 Cerebral embolus from atrial myxoma Findings Subtle reduced density in the left basal ganglia on CT.

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  • Several works have obtained successful results achieved by combining occultation and ground GPS data to estimate the local three-dimensional structure of ionospheric electron density.

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  • The book covers complex ideas, and the amount and density of information could seem off-putting to the busy practitioner.

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  • Identification of altered gene expression in polymyositis using Affymetrix high density oligonucleotide arrays.

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  • Define omega matter and omega matter and omega lambda, to be the density and lambda, divided by the critical value.

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  • These density waves are twisted by the elliptical orbits into spiral arms.

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  • For a given bone mineral density, the risk of fracture in steroid-induced osteoporosis is twice as high as in post-menopausal osteoporosis.

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  • Dual density carbon outsole provide durability and a lightweight cushioned ride.

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  • There's no frame and no special system for stabilizing the load, just dual density padding with mesh on the outside.

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  • In the dense center of the cluster, the star density can increase from 100 to 1000 per cubic parsec.

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  • We are investigating the determination of the uncertainty of the proton parton density functions.

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  • The second, based on Basell's Lupotech T technology, will produce low density pe.

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  • The density of states at the surface is calculated within the GW approximation of many-body perturbation theory.

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  • To return to the pie chart analogy, you would not draw a pie chart of population density but one of total population.

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  • For a long time it was regarded simplest and esthetically most pleasing to postulate that our universe is now of exactly critical density.

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  • In short Regular Pegasus wearers might find the second density a little obtrusive at first, as the ride doesn't feel quite as plush.

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  • Target materials are low and linear low density polyethylene, but the new masterbatches can also be used with HDPE and PP.

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  • Our products are made in Britain of mild steel coated in black high density polyethylene to withstand the toughest weather.

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  • The recycled plastic is made from a range of waste plastics, its main constituents being low and high density polyolefins.

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  • Low density polythene is used for things like plastic bags.

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  • The whole of the rest of Lapland is very sparsely populated with a density of only slightly over two persons per sq km.

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  • It also showed some very high density objects, including a possible potsherd.

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  • Any density gradients result in net negative pressure gradients which act on positive matter to produce negative buoyancy forces.

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  • It is a suggestive coincidence that the space density of bright optical quasars also reached a peak sometime around z = 2-3.

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  • The density measurements gave no ground for reliance on an unusual isotopic ratio.

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  • The massive high density polyethylene container is durable, impact resistant, ultraviolet stabilized and corrosion free.

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  • This comparison verifies the steep rise of the gluon density at low x with a precision of @ 15-20% .

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  • Despite the population density, Central Java is predominately rural with an agricultural-based economy.

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  • Use Ampère's law to calculate the flux density inside a long solenoid.

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  • In Figure 5, the energy period lies in the middle of the power spectral density.

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  • Knots of higher density cause the regions behind them to be protected from direct starlight hence building up extended shadow zones.

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  • Others have steeper outer density profiles, show sharp breaks in their density profiles, or have significant substructure.

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  • Methodologies are all too often subsumed into the density of the doctoral dissertation, rarely to see the light of the wider academic day.

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  • There is a small soft tissue density closely applied to the upper mediastinum on the right, in the superior sulcus.

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  • Density of newly synthesized plasma membrane proteins in intracellular membranes.

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  • The result is far better than we can get with equivalent density on our digital synthesizer here at Stanford.

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  • Greater character density allows better data throughput than ASCII for the same baud rate.

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  • The density of the reflections can be adjusted by increasing the transparency of the Rays layer.

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  • Collectively the combination of disordered eating, menstrual irregularities and reduced bone density has become known as the female athlete triad (6 ).

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  • In hypertensive patients eprosartan does not affect fasting triglycerides, total cholesterol, or LDL (low density lipoprotein) cholesterol levels.

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  • Manufactured from heavy duty high density ultraviolet resistant plastic Features easy carry handles and antiperch domes.

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  • Constructed with an innovative blend of resin and high density rigid urethane, these trays are approximately 40% lighter than stone trays.

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  • The outer layer is then backed up with a high density urethane foam to add stiffness and impact resistance.

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  • The variation of water vapor density with altitude suggests the water vapor density with altitude suggests the water vapor may come from a localized source comparable to a geothermal hot spot.

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  • This allows a much higher density of traps, much more action, and still feels vast in practice.

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  • The density relieving spheres within CMM dramatically damp vibration, offering a pure, soft feel.

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  • The two materials investigated were a carbon black filled high density polyethylene (HDPE) and a filled ethylene vinyl acetate (EVA ).

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  • The island also supports a high density of breeding waders, with 67 pairs being recorded in 1987.

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  • Watt density is the total wattage of the heater divided by the heated surface area of the heater.

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  • The slower propagation of light in gas or water than in air or vacuum may be attributed to a greater density, or to a less rigidity, in the former case; or we may adopt the more complicated supposition that both these quantities vary, subject only to the condition which restricts the ratio of velocities to equality with the known refractive index.

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  • As Lord Kelvin has shown (Baltimore Lectures, p. 304, 1904) (16) may also be obtained by the consideration of the mean density of the altered medium.

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  • The charge on the earth itself has its surface density given by v = - (I/47r) X125 volts per metre, =0.000331 in electrostatic units.

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  • The density of population is 85.38 per sq.

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  • The accepted atomic weight is accordingly double the density, i.e.

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  • The Hrault average density of population in France is about 190 Ille-et-Vil to the square mile, the tendency being for the large Indre towns to increase at the expense of the small towns Indre-et-I as well as the rural communities.

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  • The average density increased from 257.21 per sq.

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  • The outer layers are denser than the inner, the density decreasing more or less uniformly from the outside layers to the centre of hilum.

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  • But under the influence of the rotation the parts of greater density tend to recede further from the axis than the parts of less density.

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  • It exhibits in a marked degree the density ol species which, as already pointed out, is explicable by the arrest 01 further southern expansion.

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  • Love has shown that the great features of the relief of the lithosphere may be expressed by spherical harmonics of the first, second and third degrees, and their formation related to gravitational action in a sphere of unequal density.'

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  • The maximum density of population which a given region can support is very difficult to determine; it depends partly on the race and standard of culture of the people, partly on the nature and origin of the resources on which they depend, partly on the artificial burdens imposed and very largely on the climate.

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  • There is, however, a tendency for people to remain rooted to the 2 See maps of density of population in Bartholomew's great largescale atlases, Atlas of Scotland and Atlas of England.

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  • It is also a fact that with each recurring decade these general expenses (also called indirect, undistributed or fixed charges) have an increased importance as compared with the particular (direct, distributed or operating) expense attaching naturally to the particular portions of the traffic. For with increased density of population it becomes profitable to make improvements on the original location, even though this may involve increased charges for interest and for some parts of its maintenance, for the sake of securing that economy of operation, through larger train-loads, which such an improved location makes possible.

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  • The density of population in 1900 was 33.5 per sq.

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  • His terminology was vague and provoked caustic criticism from Berzelius; he assumed that all molecules contained two atoms, and consequently the atomic weights deduced from vapour density determinations of sulphur, mercury, arsenic, and phosphorus were quite different from those established by gravimetric and other methods.

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  • It is only by paying great attention to the current density that good results are obtained, since metals other than that sought for may be deposited.

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  • The connexion between the density and chemical composition of solids has not been investigated with the same completeness as in the case of gases and liquids.

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  • The pioneer work in this field, now frequently denominated " spectro-chemistry," was done by Sir Isaac Newton, who, from theoretical considerations based on his corpuscular theory of light, determined the function (n 2 - 1), where n is the refractive index, to be the expression for the refractive power; dividing this expression by the density (d), he obtained (n 2 - i)/d, which he named the " absolute refractive power."

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  • Making this substitution, and dividing by d, the density of the substance, we obtain a/d = (N 2 - I)/(N2+2)d.

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  • The actual values of the topic parameters can then readily be expressed in terms of the elements of the crystals (the axial ratios and angles), the density, and the molecular weight (see Groth, Physikalische Krystallographie, or Chemical Crystallography).

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  • Change of temperature usually suffices to determine this, though in certain cases a variation in pressure is necessary; for instance, sodium magnesium uranyl acetate, NaMg(UO 2) 3 (C 2 H 3 O 2) 9.9H 2 O shows no change in density unless the observations are conducted under a considerable pressure.

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  • Bartholomew of Edinburgh; (2) political maps, showing political boundaries; (3) ethnological maps, illustrating the distribution of the varieties of man, the density of population, &c.; (4) travel maps, showing roads or railways and ocean-routes (as is done by Philips' " Marine Atlas "), or designed for the special use of cyclists or aviators; (5) statistical maps, illustrating commerce and industries; (6) historical maps; (7) maps specially designed for educational purposes.

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  • Lord Rayleigh in 1894 found that the density of atmospheric nitrogen was about 2% higher than that of chemically prepared nitrogen, a discovery which led to the isolation of the rare gases of the atmosphere (see Argon).

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  • It bias the greatest density of population of any of .the Alpine provinces.

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  • With liquid of density p, this gives rise to a kinetic reaction to acceleration dU/dt, given by 7rp b 2 a 2 b l b d J = a 2 +b2 M' dU, if M' denotes the mass of liquid displaced by unit length of the cylinder r =b.

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  • Rutile assumes tetragonal forms isomorphous with cassiterite, SnO 2 (and also zircon, ZrSiO 4); anatase is also tetragonal, and brookite or thorhombic. Rutile is the most stable and anatase the least, a character reflected in the decrease in density from rutile (4.2) and brookite (4.0) to anatase (3.9).

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  • From these and other considerations it is obvious that (I) the electrolyte must be such as will freely dissolve the metal to be refined; (2) the electrolyte must be able to dissolve the major portion of the anode, otherwise the mass of insoluble matter on the outer layer will prevent access of electrolyte to the core, which will thus escape refining; (3) the electrolyte should, if possible, be incapable of dissolving metals more electro-negative than that to be refined; (4) the proportion of soluble electro-positive impurities must not be excessive, or these substances will accumulate too rapidly in the solution and necessitate its frequent purification; (5) the current density must be so adjusted to the strength of the solution and to other conditions that no relatively electro-positive metal is deposited, and that the cathode deposit is physically suitable for subsequent treatment; (6) the current density should be as high as is consistent with the production of a pure and sound deposit, without undue expense of voltage, so that the operation may be rapid and the "turnover" large; (7) the electrolyte should be as good a conductor of electricity as possible, and should not, ordinarily, be altered chemically by exposure to air; and (8) the use of porous partitions should be avoided, as they increase the resistance and usually require frequent renewal.

    0
    0
  • Coulomb proved the proportionality of electric surface force to density, but the above numerical relation E= 42ra was first established by Poisson.

    0
    0
  • Hence if we remove the charge -q at B and distribute electricity over the surface PO with a surface density a, according to the Coulomb-Poisson law, a = qAO/21rAP3, the field of force to the left of PD will fulfil the required boundary conditions, and hence will be the law of distribution of the induced electricity in the case of the actual plate.

    0
    0
  • Therefore, whatever may be the distribution of electric force produced by the charges inside taken alone, it can be exactly imitated for all space outside the metal surface if we suppose the inside charge removed and a distribution of electricity of the same sign made over the metal surface such that its density follows the law Q = - (1 /47r)dU/dn (27), where dUldn is the electric force at that point on the closed equipotential surface considered, due to the original charge alone.

    0
    0
  • The brewer has gone a step further in simplifying his expressions by multiplying the density by 1000, and speaking of the difference between the density so expressed and 1000 as "degrees of gravity" (see Beer).

    0
    0
  • This is continued until the particle freely swims, and then the density of the mixture is determined by the ordinary methods (see Mineralogy).

    0
    0
  • The electrolyte commonly contains about a lb of copper sulphate and a lb of strong sulphuric acid per gallon, and is worked with a current density of about ro amperes per sq.

    0
    0
  • Recent pendulum observations have shown that it is incorrect to assume a uniform density of 2.6 in the elevated part of the earth's crust, that on the contrary there are great local differences in density, the most important being a confirmation of Airy's discovery that there is a marked deficiency of mass under high mountains and a marked excess under the bed of the ocean.

    0
    0
  • If we assign to a column of water at the equator the density S-7-= 1.02 2 at the surface and 1.028 at l000 fathoms, or an average of 1.025, and to a column of water at the polar circle a mean density of i 028, there would result a difference of level equal to (1.028 - 1.025) X moo = 3 fathoms in a distance from the equator to the polar circle of some 4600 m.

    0
    0
  • Administratively the territory is divided into the following three districts, showing a density of population of about 316 to the sq.

    0
    0
  • Ingalls, U.S.A., for approximating to a high angle trajectory in a single arc, which assumes that the mean density of the air may be taken as the density at two-thirds of the estimated height of the vertex; the rule is founded on the fact that in an unresisted parabolic trajectory the average height of the shot is two-thirds the height of the vertex, as illustrated in a jet of water, or in a stream of bullets from a Maxim gun.

    0
    0
  • Its vapour density agrees with the molecular formula C302, and this formula is also confirmed by exploding the gas with oxygen and measuring the amount of carbon dioxide produced (see Ketenes).

    0
    0
  • There appears, however, to be some objection to the use of iridio-platinum for weights, as, owing to its great density (Δ=21.57), the slightest abrasion will make an appreciable difference in a weight; sometimes, therefore, quartz or rock-crystal is used; but to this also there is some objection, as owing to its low density (Δ=2.65) there is a large exposed surface of the mass.

    0
    0
  • Neglecting the very small buoyancy of the vapour, the hydrostatic pressure P at the foot of the column of solution is h g p where h is the height of the column and p the mean density of the solution.

    0
    0
  • The current density is about 700 amperes per sq.

    0
    0
  • Further, he showed that the spectrum of a dense ignited gas resembles that of an incandescent liquid or solid, and he traced a gradual change in the spectrum of an incandescent gas under increasing pressure, the sharp lines observable when it is extremely attenuated broadening out to nebulous bands as the pressure rises, till they merge in the continuous spectrum as the gas approaches a density comparable with that of the liquid state.

    0
    0
  • The current from a Wilde's dynamo was passed, apparently with a current density of 5 or 6 amperes per sq.

    0
    0
  • The yak of Thibet cannot long survive in the plains ofIndia, or even on the hills below a certain altitude; and that this is due to climate, and not to the increased density of the atmosphere, is shown by the fact that the same animal appears to thrive well in Europe, and even breeds there readily.

    0
    0
  • But whether the assumption of uniform density be physically correct is a very different question, and Poisson rendered good service to science in showing how to carry on the investigation on the hypothesis that the density very near the surface is different from that in the interior of the fluid.

    0
    0
  • We may, therefore, write for the pressure at a height y p= - pgy, T A b e ?; y t L - == --ti where p is the density of the liquid, or if there are two fluids the excess of the density of the lower fluid over that of the upper one.

    0
    0
  • For the sections of masonry dams actually used in practice, if designed on the condition that the centre of all vertical pressures when the reservoir is full shall be, as hereafter provided, at two-thirds the width of the base from the inner toe, the least sectional area for a density of 2 also has a vertical water face.

    0
    0
  • If now we assume the water to have a depth d above the base, the total water pressure represented by the triangle kbh will have its centre at d/3 from the base, and by the parallelogram of forces, assuming the density of the masonry to be 2.5, we find that the centre of pressure upon the base bc is shifted from the centre of the base to a point i nearer to the outer toe c, and adopting our assumption of uniformly varying intensity of stress, the rectangular diagram of pressures will thus be distorted from the figure bfgc to the figure of equal area bjlc, having its centre o vertically under the point at which the resultant of all the forces cuts the base bc. For any lower level the same treatment may, step by step, be adopted, until the maximum intensity of pressure cl exceeds the assumed permissible maximum, or the centre of pressure reaches an assigned distance from the outer toe c, when the base must be widened until the maximum intensity of pressure or the centre of pressure, as the case may be, is brought within the prescribed limit.

    0
    0
  • Its density is 20+ times that of earth being a slow smoldering brown dwarf star.

    0
    0
  • Use Ampère 's law to calculate the flux density inside a long solenoid.

    0
    0
  • Reducing stocking density in summer months is unlikely to offer any welfare benefits.

    0
    0
  • We would normally expect stomatal density to be related to the climate in which the plant is adapted to grow.

    0
    0
  • Density stratification of the water column is well developed over much of the area in the summer.

    0
    0
  • When these adults were supplemented with magnesium for two years, their bone mineral density increased significantly.

    0
    0
  • Line transect methods are used to estimate fecal pellet density, which in turn leads to deer density.

    0
    0
  • Collectively the combination of disordered eating, menstrual irregularities and reduced bone density has become known as the female athlete triad (6).

    0
    0
  • Net residential density is measured as the number of dwelling units per hectare of land developed specifically for housing and directly associated uses.

    0
    0
  • In this case, Wachs chose to use titanium compounds to tailor the electron density of clusters of vanadium oxide on a silica support.

    0
    0
  • The variation of water vapor density with altitude suggests the water vapor may come from a localized source comparable to a geothermal hot spot.

    0
    0
  • The two materials investigated were a carbon black filled high density polyethylene (HDPE) and a filled ethylene vinyl acetate (EVA).

    0
    0
  • Also the phase difference between the same two wavelet coefficients gives the phase of the cross-spectral density between these signals.

    0
    0
  • In winter wheat, increasing crop density will reduce seed production due to the effect on weed growth.

    0
    0
  • The most common method of measuring bone density involves a simple test called dual energy x-ray absorptiometry (DXA).

    0
    0
  • Cheaper pool tables are made with Slatron synthetic plastics layered onto particle board, and Permaslate, a honeycombed plastic set between two plastic sheets of plastic and medium density fiberboard (MDF) commonly used in construction.

    0
    0
  • The higher the density the higher quality the rug is.

    0
    0
  • In this case, the higher the number is, the better the quality is (density in down is a good thing and will provide the best insulation).

    0
    0
  • Many people say that the most essential aspect of the golf club is the shaft, because it can vary in length and density, which can greatly affect your game.

    0
    0
  • Generally, the higher the density of the foam topper, the more support it will provide.

    0
    0
  • For most individuals, the density of the foam should be at least 4 pounds, which means that a cubic foot (a 12 x 12 x 12 square) of foam will weigh four pounds.

    0
    0
  • Less expensive toppers may come in a density of as low as one to two pounds.

    0
    0
  • Not only will a higher density mattress provide you with more support, but it is also likely to hold up better under wear-and-tear.

    0
    0
  • These chemicals give the memory foam the variances in its density properties.

    0
    0
  • For the higher density, the foam relies on the heat from your body to mold around you.

    0
    0
  • A lower density memory foam mattress or pillow uses your body or head's weight to fit the shape of each respective form.

    0
    0
  • Memory foam consists of polyurethane and chemicals that increase its density.

    0
    0
  • Memory foam with a high density reacts to the heat of the body, allowing it to mold to your specific space.

    0
    0
  • Inside the mattress are two foam structures of different density.

    0
    0
  • Then it is time to choose a mattress, such as the Fabulous Futon mattress, which is an excellent basic handmade futon mattress with two layers of high density foam and four batts of cotton/poly filling.

    0
    0
  • Place a piece of plywood or medium density fiberboard (MDF) on top of the bed frame, making sure it's straight.

    0
    0
  • The amount of energy that is transferred to the blades depends on both the density of the air and the speed of the wind.

    0
    0
  • Garlic is thought to reduce blood levels of low density lipoproteins (LDLs), which are considered to be the "bad" type of cholesterol.

    0
    0
  • Consider the use of filters for dramatic effect, such as neutral density filters or a polarizer.

    0
    0
  • If this is your goal keep in mind that the density of the cake matters a lot especially if it needs to hold weight.

    0
    0
  • Postmenopausal female smokers have a significantly lower bone density than their non-smoking counterparts.

    0
    0
  • Most dog cages fall into two categories, wire, and high density plastic.

    0
    0
  • Although nearly any type of dog crates are better than no crates at all, high density plastic carriers provide the most protection for travelling dogs, and are the number one choice of most dog show exhibitors because of their versatility.

    0
    0
  • The Vari-Kennel is actually a two piece, high density copolymer plastic shell that bolts together.

    0
    0
  • These products are completely open to wind, sun and rain, and with typical wire spacing running 1-1 1/2 inches apart, do not offer the same security as high density plastic dog cages.

    0
    0
  • Orthopedic dog beds make use of a high density orthopedic foam to provide excellent cushioned support for dogs with joint pain.

    0
    0
  • These dog beds are constructed from high density foam that doesn't pack down with repeated use the way fiber filled beds do.

    0
    0
  • I prefer to use high density plastic crates to protect my dogs when we're on the go.

    0
    0
  • These carriers come in sizes to fit nearly any size pet and are made from high density plastics that hold up well to impacts.

    0
    0
  • They're made from high density rubber that stands up to moderate and heavy chewers.

    0
    0
  • The plants differ in habit, some being nearly prostrate, and others erect or drooping, though the largest are not much over 2 feet high; their fruits also vary in density and texture.

    0
    0
  • However, high density planting is preferred by some gardeners because smaller trees are desirable in smaller spaces.

    0
    0
  • The shape of the body, the density of the wood, the pickups and the wiring all figure in to the sound that the guitar produces.

    0
    0
  • It is easy to work with, and less likely to split or check when compared to other woods, and it also has a low density and is less prone to shrinkage.

    0
    0
  • Green tea is naturally full of antioxidants, and some of the most promising research suggests that it can help control blood sugar, boost immune function, maintain bone density and heart health, burn fat, and lower cognitive impairment.

    0
    0
  • The term denotes access, but not how much nor the density of that space.

    0
    0
  • It does not specify if that means a density of 10 cows per acre or 100 or more.

    0
    0
  • These stylish designs are made of high density polyethylene and have 30-inch wide seats and a weight capacity of 800 pounds.

    0
    0
  • In a very large eruption, volcanic ash, especially when it is accompanied by rocks, can have the weight and density of hailstones.

    0
    0
  • However, less visible light may get through and a lower optical density than glass.

    0
    0
  • Since it's imperative that you get the right optical density and filter for the task in order to protect your eyes, don't be afraid to ask questions before making a purchase.

    0
    0
  • The composites made by mixing cork granules and cement have low thermal conductivity, low density and good energy absorption.

    0
    0
  • Hydrometer - This device measures the density of the wine.

    0
    0
  • This is because the density of the population cannot sustain the density of cell phone towers needed to provide reliable service over such a widespread area.

    0
    0
  • However, the iPhone 4 has a higher pixel density, offering a better resolution in a smaller space.

    0
    0
  • The iPhone 4 also has higher pixel density than you can detect with the human eye, which improves the quality of the photos you take with the VGA camera.

    0
    0
  • It's not enough to simply have a large display on a smartphone; having a higher pixel density results in crisper images and easier-to-read text.

    0
    0
  • While the HTC Droid X and Droid X both have large 4.3-inch displays, the Apple iPhone 4 has a better pixel density on its "retina" display (326 pixels per inch vs. 217 pixels per inch).

    0
    0
  • The doctor will usually order blood tests, an electrocardiogram, urinalysis, and bone densitometry (bone density test) in order to exclude other diseases and to assess the patient's nutritional status.

    0
    0
  • X rays or a CT scan can determine bone density and reveal gastrointestinal disturbances, as well as heart and lung damage.

    0
    0
  • The greater the density of the material that the x rays pass through, the more rays are absorbed.

    0
    0
  • Heavy metals are chemical elements that have a specific gravity (a measure of density) at least five times that of water.

    0
    0
  • Heavy metal-One of 23 chemical elements that has a specific gravity (a measure of density) at least five times that of water.

    0
    0
  • This type of injury occurs because the brain is of a different density than the skull and can be injured when delicate brain tissues hit against the rough, jagged inner surface of the skull.

    0
    0
  • Dairy products were associated with higher bone mineral density in the spine, while calcium supplements had no such benefit.

    0
    0
  • Neutral density filters may also be held over the eye to aid in the diagnosis.

    0
    0
  • Osteopetrosis is usually diagnosed when x rays reveal abnormalities or increases in bone density.

    0
    0
  • Individuals with this condition show diminished bone density (bone mass/bone width).

    0
    0
  • Most of these products claim to either halt hair loss and speed growth, increase hair density, or all of the above.

    0
    0
  • Because of its unique properties and density, the cream stays in place well and is not runny or thin, making it convenient for users who need to take more time for a clean shave.

    0
    0
  • Normally, volumizing hair products coat the hair shaft to increase cuticle density which, in time, can result in lusterless heavy hair and product build-up.

    0
    0
  • Hair density, color, texture, skin color, and area to be treated can all affect the cost of laser hair removal.

    0
    0
  • Grow out your layers and aim for this length if you want to see some major changes in the density of your hair.

    0
    0
  • Vitamin E - maintains integrity of cell membranes throughout the body and protects fats in low density lipoproteins from oxidation.

    0
    0
  • Vitamin D helps your body to absorb calcium, which in turns helps to improve bone density and keep your skeletal system strong.

    0
    0
  • Contrary to popular belief, it isn't just women that can experience loss of bone density.

    0
    0
  • Utilize that density by submitting your requests to forums.

    0
    0
  • All gemstones aren't the same density as diamonds.

    0
    0
  • The lack of nutrients makes you vulnerable to other conditions such as loss of bone density and anemia.

    0
    0
  • You may want to consider a bread recipe with a high density in order to take advantage of all those yummy chicken or turkey drippings.

    0
    0
  • Watch for shadows that appear to have a different color or density from the shadows surrounding them.

    0
    0
  • Part of Clennell's presentation included the suggestion that eruptions of these methane hydrates could actually reduce the density of ocean water enough to sink entire ships.

    0
    0
  • The large volume of methane at the surface of the ocean would lower the density of ocean water.

    0
    0
  • As the lower density water pulls the ship down, ocean water would fill the ship and eventually pull it down to the bottom of the ocean.

    0
    0
  • A high density polyurethane pivot point allows for 360-degree movement while the air-cushioned heel allows for maximum shock absorption and comfort.

    0
    0
  • Piercing the rook can be quite painful due to the density of the cartilage.

    0
    0
  • A keyword density of approximately 3% for the main term is good enough to improve search engine rankings without reaching the limit for what would be considered spam, and doesn't seem overly repetitious to the reader.

    0
    0
  • The colors, grain, density, and other properties of these woods vary, but the cleaning methods for each one are very similar.

    0
    0
  • Strengthened bone density, lowering the risk of osteoporosis, stress fractures, or easy bone damage.

    0
    0
  • Excessive consumption of ACV has been known to have a negative affect on potassium and bone density levels.

    0
    0
  • Or perhaps you've scene people emerged into a large tank to determine their body density.

    0
    0
  • Total cholesterol is made up of both HDL (high-density lipoproteins) and LDL (low density lipoproteins).

    0
    0
  • Broth-based soups have a lower energy density and are low in calories, filling and able to be consumed in greater volume than other foods.

    0
    0
  • Long-term use of vinegar may lower bone density.

    0
    0
  • Studies have found a link between the use of vinegar and lower bone density.

    0
    0
  • Interestingly, drinking more milk is not a good answer to the problem, as the animal proteins in dairy products actually balance the calcium needed for protein metabolism, resulting in no net increase in bone mineral density.

    0
    0
  • Increased muscle mass and/or density - Depending on your goals, exercise and lifting weights will help you to increase your muscle mass or improve the density of your muscles.

    0
    0
  • By increasing bone mineral density, you can prevent post-menopausal bone loss.

    0
    0
  • You will not only build muscles, but you will also improve your bone density.

    0
    0
  • The pulling action of your muscles will strengthen your bones and increase their density.

    0
    0
  • When you engage in strength training, the act of moving your bones through muscle action increases its density.

    0
    0
  • Increased bone density will reduce your risk of fractures as you age.

    0
    0
  • Bone density will also increase as a result.

    0
    0
  • The build-up of muscle mass and bone density decrease your risk for developing osteoporosis.

    0
    0
  • Because testosterone affects your body's ability to develop bone and muscle, higher levels of testosterone can help you improve your body composition and increase your bone density.

    0
    0
  • Medicare Plan B also provides for certain preventative testing like diabetes and cardiovascular screenings, mammograms, bone density scans, and flu shots.

    0
    0
  • Although there is some debate on what constitutes an appropriate keyword density, one general rule of thumb is to aim for two to six keywords per 200-word blog post.

    0
    0
  • Google takes your keyword density into account, which is measured by the total number of occurrences divided by the total number of words on the page.

    0
    0
  • For example, a keyword appearing 5 times on a 500 words page has a density of 1 percent.

    0
    0
  • Aim for an overall density between 1.25 and 1.75 percent, inserting the terms naturally into the content.

    0
    0
  • It provides a layer of protection and is made from 100 percent high density polyethylene.

    0
    0
  • If V be the potential, p the density of free electricity at a point in the atmosphere, at a distance r from the earth's centre, then assuming statical conditions and neglecting variation of V in horizontal directions, we have r2 (d/dr) (r 2 dV/dr) - - 4.rp = o.

    0
    1
  • The density of solid sulphur is 2 062 to 2'070, and the specific heat 0.1712; it is a bad conductor of electricity and becomes negatively electrified on friction.

    65
    65
  • Owing to difference of density the oil and water in the anticlines separate into two layers, the upper consisting of oil which fills the anticlines, while the water remains in the synclines.

    42
    42
  • The oxychloride, bromides, and other compounds were subsequently discovered; here we need only notice Moissan's preparation of the trifluoride and Thorpe's discovery of the pentafluoride, a compound of especial note, for it volatilizes unchanged, giving a vapour of normal density and so demonstrating the stability of a pentavalent phosphorus compound (the pentachloride and pentabromide dissociate into a molecule of the halogen element and phosphorus trichoride).

    0
    1
  • As a general rule the modification stable at higher temperatures possesses a lower density; but this is by no means always the case, since the converse is true for antimonious and arsenious oxides, silver iodide and some other substances.

    0
    1
  • It is remarkable that a great many polymorphous substances assume more symmetrical forms at higher temperatures, and a possible explanation of the increase in density of such compounds as silver iodide, &c., may be sought for in the theory that the formation of a more symmetrical configuration would involve a drawing together of the molecules, and consequently an increase in density.

    0
    1
  • The insufficiency of this argument, however, is shown by the data for arsenious and antimonious oxides, and also for the polymorphs of calcium carbonate, the more symmetrical polymorphs having a lower density.

    0
    1
  • Lord Rayleigh in 1894 found that the density of atmospheric nitrogen was about 2% higher than that of chemically prepared nitrogen, a discovery which led to the isolation of the rare gases of the atmosphere.

    0
    1
  • These methods have been purely chemical (either gravimetric or volumetric), physical (determinations of the density of nitrogen, nitric oxide, &c.) or physicochemical.

    0
    1
  • With these numbers it was impossible to attain the high degree of individual efficiency required for the old line tactics, hence they were compelled to adopt the French methods of skirmishers and columns, but as yet they had hardly realized the increased density necessary to be given to a line of battle to enable it to endure the prolonged nervous strain the new system of tactics entailed.

    0
    1
  • The density of population increased from 16.5 per sq.

    7
    7
  • The excess of heat received in equatorial regions expands the water, but at the same time excess of evaporation concentrates it, so that the density increases.

    0
    1
  • In intermediate latitudes there is a loss of heat and then the increased density due to equatorial concentration becomes a factor.

    0
    1
  • In the polar areas the melting of sea-ice and of ice formed by precipitation lowers the density of the seawater and causes a difference of level which sets up streaming movements towards the equator.

    0
    1
  • Other physical properties of these solutions, such as density, colour, optical rotatory power, &c., like the conductivities, are additive, i.e.

    0
    1
  • Care must be taken not to expose goods in the plating-bath to too high a current density, else they may be "burnt"; they must never be exposed one at a time to the full anode surface, with the current flowing in an empty bath, but either one piece at a time should be replaced, or some of the anodes should be transferred temporarily to the place of the cathodes, in order to distribute the current over a sufficient cathode-area.

    0
    1
  • Sherard Cowper Coles patented a process in which, working with a high current density, a lead anode is used, and powdered zinc is kept suspended in the solution to maintain the proportion of zinc in the electrolyte, and so to guard against the gradual acidification of the bath.

    0
    1
  • The colour depends in part upon the proportion of copper and zinc, and in part upon the current density, weaker currents tending to produce a redder or yellower metal.

    0
    1
  • The total magnetic induction or flux corresponds to the current of electricity (practically measured in amperes); the induction or flux density B to the density of the current (number of amperes to the square centimetre of section); the magnetic permeability to the specific electric conductivity; and the line integral of the magnetic force, sometimes called the magnetomotive force, to the electro-motive force in the circuit.

    0
    1
  • Taking the density of iron to be 7.7, the factor for reducing the loss in ergs per c.cm.

    0
    1
  • Abrupt alterations, take place in its density, specific heat, thermo-electric quality, electrical conductivity, temperature-coefficient of electrical resistance, and in some at least of its mechanical properties.

    0
    1
  • According to the notation adopted by Meyer the atomic susceptibility k=KX atomic-weight/ (density X 1000).

    0
    1
  • It is noteworthy, also, for the large number of species having arboreal habits, the density and extent of the Amazon forests favouring their development rather than the development of those of terrestrial habits.

    0
    1
  • The density of the forest is greatly augmented by the cipos, or lianas, which overgrow the largest trees to their tops, and by a profusion of epiphytes which cover the highest branches.

    0
    1
  • Of the total population 985,167 live in rural areas, the average density for the whole country being 31.34 per sq.

    0
    1
  • Perestrello states that Natal has no ports but otherwise he gives a fairly accurate description of the country - noting particularly the abundance of animals and the density of the population.

    0
    1
  • It is from these cells that the fine fibrillar substance is formed, and from this stage onwards - eight to fifteen days - there is a steady increase in the new fibrils, giving more density to the new tissue.

    0
    1
  • Bernoulli also considered the cases when (I) the chain was of variable density, (2) extensible, (3) acted upon at each point by a force directed to a fixed centre.

    0
    1
  • The density of population per square mile is 44 as compared with 167 for the whole of India and S52 for the Bengal Delta.

    0
    1
  • On the other hand, while in the older crown and flint glasses the relation between refraction and dispersion had been practically fixed, dispersion and refraction increasing regularly with the density of the glass, in some of the new glasses introduced by Abbe and Schott this relation is altered and a relatively low refractive index is accompanied by a relatively high dispersion, while in others a high refractive index is associated with low dispersive power.

    0
    1
  • It has in general one value for the powdery metal as obtained by reduction of the oxide in hydrogen below the melting point of the metal, another for the metal in the state which it assumes spontaneously on freezing, and this latter value, in general, is modified by hammering, rolling, drawing, &c. These mechanical operations do not necessarily add to the density; stamping, it is true, does so necessarily, but rolling or drawing occasionally causes a diminution of the density.

    0
    1
  • For if the liquid of density a rises to the height h and of density p to the height k, and po denotes the atmospheric pressure, the pressure in the liquid at the level of the surface of separation will be ah+Po and pk +po, and these being equal we have Uh = pk.

    0
    1
  • Ignoring temperature effect, and taking the density as a function of the pressure, surfaces of equal pressure are also of equal density, and the fluid is stratified by surfaces orthogonal to the lines of force; n ap, dy, P d z, or X, Y, Z (4) are the partial differential coefficients of some function P, =fdplp, of x, y, z; so that X, Y, Z must be the partial differential coefficients of a potential -V, such that the force in any direction is the downward gradient of V; and then dP dV (5) ax + Tr=0, or P+V =constant, in which P may be called the hydrostatic head and V the head of potential.

    0
    1
  • With variation of temperature, the surfaces of equal pressure and density need not coincide; but, taking the pressure, density and temperature as connected by some relation,such as the gas-equation, the surfaces of equal density and temperature must intersect in lines lying on a surface of equal pressure.

    0
    1
  • From the gas-equation in general, in the atmosphere n d dp _ I dp 1 de _ d0 de i de (8) z p dz-edz-p-edz-k-edz' which is positive, and the density p diminishes with the ascent, provided the temperature-gradient de/dz does not exceed elk.

    0
    1
  • With uniform temperature, taking h constant in the gas-equation, dp / dz= =p / k, p=poet/ k, (9) so that in ascending in the atmosphere of thermal equilibrium the pressure and density diminish at compound discount, and for pressures p 1 and 1, 2 at heights z 1 and z2 (z1-z2)11?

    0
    1
  • In the Eulerian method the attention is fixed on a particular point of space, and the change is observed there of pressure, density and velocity, which takes place during the motion; but in the Lagrangian method we follow up a particle of fluid and observe how it changes.

    0
    1
  • I n a straight uniform current of fluid of density p, flowing with velocity q, the flow in units of mass per second across a plane area A, placed in the current with the normal of the plane making an angle 0 with the velocity, is oAq cos 0, the product of the density p, the area A, and q cos 0 the component velocity normal to the plane.

    0
    1
  • If p denotes the density of the air or medium W' = sird 3 xp, (23) W' I p __ W I -1 3 k12 I k22 x2 ±i a 2= 101-1 3 '111 2= 2 tan g S = Q (l - a) x 2+ I (26) in which a/p may be replaced by 800 times the S.G.

    0
    1
  • Forgetful or ignorant of the great principle announced and established by Rilleux, they have mostly devoted their energies and ingenuity to contriving all sorts of complicated arrangements to give the juice the density required, by passing and repassing it over the heating surface of the apparatus, the saving of a few square feet of which would seem to have been their main object.

    0
    1
  • The wholesale jam manufacturers of the present day use this sugar; they boil the jam in vacuo and secure a product that will last a long time without deteriorating, but it lacks the delicacy and distinctive flavour of fruit preserved by a careful housekeeper, who boils it in an open pan with cane sugar to a less density, though exposed for a short time to a greater heat.

    0
    1
  • When the massecuite, well pugged and prepared for purging, is in the centrifugals, it is first washed with syrup of low density, to assist the separation of mother-liquor of similar quality, this washing being supplemented by the injection of pure syrup of high density, or " clairce," when very white sugar is required.

    0
    1
  • The above theory, coupled with such facts as the variation of the composition of the constant boiling-point fraction with the pressure under which the mixture is distilled, the proportionality of the density of all mixtures to their composition, &c., shows this to be erroneous.

    0
    1
  • Everything is air at different degrees of density, and under the influence of heat, which expands, and of cold, which contracts its volume, it gives rise to the several phases of existence.

    1
    1
  • Of these 71,512 were in Coburg and 170,920 in Gotha; the relative density in either duchy being about equal.

    0
    1
  • By the surface density of electrification on a conductor is meant the charge per unit of area, or the number of tubes of electric force which spring from unit area of its surface.

    0
    1
  • Coulomb proved experimentally that the electric force just outside a conductor at any point is proportional to the electric density at that point.

    0
    1
  • The electric density on the sphere being uniform, the quantities of electricity on these areas are proportional to the areas, and if the electric force varies inversely as the square of the distance, the forces exerted by these two surface charges at the point in question are proportional to the solid angle of the little cone.

    0
    1
  • Since the potential of a small charge of electricity dQ at a distance r is equal to dQ/r, and since the potential of all parts of a conductor is the same in those cases in which the distribution of surface density of electrification is uniform or symmetrical with respect to some point or axis in the conductor, we can calculate the potential by simply summing up terms like rdS/r, where dS is an element of surface, o- the surface density of electricity on it, and r the distance from the symmetrical centre.

    0
    1
  • Thus if Q is the surface density, S the thickness of the shell at any point, and p the assumed volume density of the matter of the shell, we have v =Abp. Then the quantity of electricity on any element of surface dS is A times the mass of the corresponding element of the shell; and if Q is the whole quantity of electricity on the ellipsoid, Q =A times the whole mass of the shell.

    0
    1
  • Accordingly for a given ellipsoid the surface density of free distribution of electricity on it is everywhere proportional to the the tangent e plane e att that point.

    0
    1
  • Hence the density v is given by 47rabc (x2/a4+y2/b4-I-z2/c4), and the potential at the centre of the ellipsoid, and therefore its potential as a whole is given by the expression, adS Q dS V f r 47rabc r' (x2/a4-I-y2/b4+z2/c4) Accordingly the capacity C of the ellipsoid is given by the equation 1 I J dS C 47rabc Y (x 2 +y 2 + z2) V (x2/a4+y2/b4+z2/c4) (5) It has been shown by Professor Chrystal that the above integral may also be presented in the form,' foo C 2 J o J { (a2 + X) (b +X) (c 2 + X) } (6).

    0
    1
  • If we consider a length l of the cylinder, the charge Q on the inner cylinder is Q=27rR l ly, where v is the surface density, and by Coulomb's law v = E i /47r, where E 1 = A/R 1 is the force at the surface of the inner Ai cylinder.

    0
    1
  • But if v is the surface density, E=47rv, and a=Q/S.

    0
    1
  • Let this rectangular prism be supposed to be wholly filled up with electricity of density p; then the total quantity in it is p dx dy dz.

    3
    3
  • In the next place apply the surface characteristic equation to any point on a charged conductor at which the surface density is a.

    0
    1
  • The above is a statement of Coulomb's law, that the electric fores at the surface of a conductor is proportional to the surface density of the charge at that point and equal to 41r times the density.3 See Maxwell, Electricity and Magnetism, vol.

    0
    1
  • Every tube of electric force must therefore begin and end on electrified surfaces of opposite sign, and the quantities of positive and negative electricity on its two ends are equal, since the force E just outside an electrified surface is normal to it and equal to a/41r, where a is the surface density; and since we have just proved that for the ends of a tube of force EdS = E 1 dS', it follows that adS = a'dS', or Q = Q', where Q and Q' are the quantities of electricity on the ends of the tube of force.

    0
    1
  • If a is the surface density and dS an element of surface, then fadS is the whole charge, and hence afV adS is the expression for the energy of charge of a conductor.

    0
    1
  • The first term on the right hand side expresses the energy of the surface electrification of the conductors in the field, and the second the energy of volume density (if any).

    0
    1
  • If we make a distribution of negative electricity over it, which has a density a varying according to the law a = -(d 2 -r 2) q /42rr AP3.

    0
    1
  • The specific heats are independent of the pressure or density by equations (to) and (12).

    0
    1
  • The specific gravity of cast gold varies from 18.29 to 19.37, and by compression between dies the specific gravity may be raised from 19.37 to 19.41; by annealing, however, the previous density is to some extent recovered, as it is then found to be 19.40.

    0
    1
  • In the alluvial deposits the associated minerals are chiefly those of great density and hardness, such as platinum, osmiridium and other metals of the platinum group, tinstone, chromic, magnetic and brown iron ores, diamond, ruby and sapphire, zircon, topaz, garnet, &c. which represent the more durable original constituents of the rocks whose distintegration has furnished the detritus.

    0
    1
  • Matthiessen observed that the density of alloys, the composition of which varies from AuAg 6 to Au 6 Ag, is greater than that calculated from the densities of the constituent metals.

    0
    1
  • The alloys of tin and gold are hard and brittle, and the combination of the metals is attended with contraction; thus the alloy SnAu has a density 14.243, instead of 14.828 indicated by calculation.

    0
    1
  • One process depends upon the fact that, with a suitable current density, if a very dilute solution of silver nitrate be electrolysed between an auriferous silver anode and a silver cathode, the silver of the anode is dissolved out and deposited at the cathode, the gold remaining at the anode.

    0
    1
  • Among these were the exponential calculus, and the curve called by him the linea brachistochrona, or line of swiftest descent, which he was the first to determine, pointing out at the same time the relation which this curve bears to the path described by a ray of light passing through strata of variable density.

    0
    1
  • The important part played by the residual air in the globe had also been deduced by Osborne Reynolds from observing that on turning off the light, the vanes came to rest very much sooner than the friction of the pivot alone would account for; in fact, the rapid subsidence is an illustration of Maxwell's great theoretical discovery that viscosity in a gas (as also diffusion both of heat and of the gas itself) is sensibly independent of the density.

    0
    1
  • In air of considerable density the mean free path of a molecule, between its collisions with other molecules, is exceedingly small, and any such increase of gaseous pressure in front of the black surface would be immediately neutralized by flow of the gas from places of high to places of low pressure.

    0
    1
  • Other standards of reference may be used in special connexions; for example, the Earth is the usual unit for expressing the relative density of the other members of the solar system.

    0
    1
  • Reference should be made to the article Gravitation for an account of the methods employed to determine the "mean density of the earth."

    0
    1
  • The reason for this is readily seen; if a mass M of any gas occupies a volume V at a temperature T (on the absolute scale) and a pressure P, then its absolute density under these conditions is O = M/V; if now the temperature and pressure be changed to l and P,, the volume V l under these conditions is VPT/PIT1, and the absolute density is MP,T/VPT I.

    1
    1
  • The density gives very important information as to the molecular weight, since by the law of Avogadro it is seen that the relative density is the ratio of the molecular weights of the experimental and standard gases.

    1
    1
  • Thus if d be the relative density, then Iod represents the weight of a gallon in lb.

    1
    1
  • Calling the weight of the empty vessel w, when filled with the liquid W, and when filled with the standard substance W l, it is obvious that W - w, and W1 - w, are the weights of equal volumes of the liquid and standard, and hence the relative density is (W - w)/(Wi - w).

    1
    1
  • The specific gravity bottle may be used to determine the relative density of a solid which is available in small fragments, and is insoluble in the standard liquid.

    1
    1
  • It is readily seen that W+W i - W 2 is the weight of the liquid displaced by the solid, and therefore is the weight of an equal volume of liquid; hence the relative density is W/(W+Wi - W2).

    1
    1
  • Related to the determination of the density of a gas is the determination of the density of a vapour, i.e.

    1
    1
  • This subject owes its importance in modern chemistry to the fact that the vapour density, when hydrogen is taken as the standard, gives perfectly definite information as to the molecular condition of the compound, since twice the vapour density equals the molecular weight of the compound.

    1
    1
  • For higher temperatures the bulb of the vapour density tube is made of porcelain or platinum, and is heated in a gas furnace.

    1
    1
  • Hence W/(W - W,) is the relative density or specific gravity of the body.

    1
    1
  • The principle is readily adapted to the determination of the relative densities of two liquids, for it is obvious that if W be the weight of a solid body in air, W, and W2 its weights when immersed in the liquids, then W - W, and W - W 2 are the weights of equal volumes of the liquids, and therefore the relative density is the quotient (W - W,)/(W - W2).

    1
    1
  • If W be the weight of the experimental solid in air, w the weight of the sinker in water, and W, the weight of the solid plus sinker in water, then the relative density is given by W/(W+w - Wi).

    1
    1
  • There are several corrections of the formula O =W/(W - W1) necessary to the accurate expression of the density.

    2
    2
  • Similarly in the case of the weighing in water, account must be taken of the buoyancy of the weights, and also, if absolute densities be required, of the density of water at the temperature of the experiment.

    1
    1
  • Less accurate formulae are =p W/(W - W 2), the factor involving the density of the air, and the coefficient of the expansion of the solid being disregarded, and 0 =W/(W - W 1), in which the density of water is taken as unity.

    1
    1
  • To determine the density of any liquid it is only necessary to suspend the plummet in the liquid, and to bring the beam to its normal position by means of the riders; the relative density is read off directly from the riders.

    1
    1
  • Methods depending on the free suspension of the solid in a liquid of the same density have been especially studied by Retgers and Gossner in view of their applicability to density determinations of crystals.

    1
    1
  • Two typical forms are in use; in one a liquid is prepared in which the crystal freely swims, the density of the liquid being ascertained by the pycnometer or other methods; in the other a liquid of variable density, the so-called "diffusion column," is prepared, and observation is made of the level at which the particle comes to rest.

    1
    1
  • Methylene iodide, CH 2 I 2, has a density of 3.33, and may be diluted with benzene.

    1
    1
  • Its advantages rest on its high density and mobility; its main disadvantages are its liability to decomposition, the originally colourless liquid becoming dark owing to the separation of iodine, and its high coefficient of expansion.

    1
    1
  • Its density may be raised to 3.65 by dissolving iodoform and iodine in it.

    1
    1
  • Rohrbach's solution, an aqueous solution of barium and mercuric iodides, introduced by Carl Rohrbach, has a density of 3.588.

    1
    1
  • Klein, has a density up to 3.28.

    1
    1
  • In the "diffusion column" method, a liquid column uniformly varying in density from about 3.3 to I is prepared by pouring a little methylene iodide into a long test tube and adding five times as much benzene.

    1
    1
  • The density of the column at any level is determined by means of the areometrical beads proposed by Alexander Wilson (1714-1786), professor of astronomy at Glasgow University.

    1
    1
  • These are hollow glass beads of variable density; they may be prepared by melting off pieces of very thin capillary tubing, and determining the density in each case by the method just previously described.

    1
    1
  • By successive trials two beads, of known density, say di, d 2, are obtained, one of which floats above, and the other below, the test crystal; the distances separating the beads from the crystal are determined by means of a scale placed behind the tube.

    1
    1
  • If the bead of density dl be at the distance l l above the crystal, and that of d 2 at l 2 below, it is obvious that if the density of the column varies uniformly, then the density of the test crystal is (d1l2-+d211)/(ll+l2).

    0
    1
  • Acting on a principle quite different from any previously discussed is the capillary hydrometer or staktometer of Brewster, which is based upon the difference in the surface tension and density of pure water, and of mixtures of alcohol and water in varying proportions.

    0
    1
  • Hence any impurity which diminishes the surface tension of the water will diminish the size of the drop (unless the density is proportionately diminished).

    0
    1
  • If the whole globe were covered with a uniformly deep ocean, and if there were no difference of density between one part and another, the surface would form a perfect ellipsoid of revolution, that is to say, all the meridians would be exactly equal ellipses and all parallels perfect circles.

    0
    1
  • But as things are the watersurface is broken by land, and the mean density of the substance of the land is 2 6 times as great as that of sea-water, so that the gravitational attraction of the land must necessarily cause a heaping up of the sea around the coasts, forming what has been called the continental wave, and leaving the sea-level lower in mid-ocean.

    0
    1
  • The temperature of maximum density of sea-water of any specific gravity was found by Knudsen to be given with sufficient accuracy for all practical purposes by the formula 0 = 3.950.2660 -0, where 0 is the temperature of maximum density in degrees centigrade.

    0
    1
  • The difference in density which occurs between one part of the ocean and another, shares with the wind in the production of currents.

    0
    1
  • Strongly marked differences in density are produced by the melting of sea-ice, and this is of particular importance in the case of the great ice barrier round the Antarctic continent.

    0
    1
  • Differences of density between the waters of enclosed seas and of the ocean are brought about in some instances by concentration of the water of the sea on account of active evaporation, and in other instances by dilution on account of the great influx of land water.

    0
    1
  • Wind and tide greatly alter the strength of these currents due to difference of density, and the surface outflow may either be stopped or, in the case of the belts, actually reversed by a strong and steady wind.

    0
    1
  • As a rule, the density increases with the amount of carbon, but in some instances a very high specific gravity is due to intermixed earthy matters, which are always denser than even the densest form of coal substance.

    0
    1
  • It is a colourless gas, having a density of 0.92.

    1
    1
  • Calcium carbide, as formed in the electric furnace, is a beautiful crystalline semi-metallic solid, having a density of 2.22, and showing a fracture which is often shot with iridescent "non-automatic."

    0
    1
  • At normal temperature and pressure the density of a substance in the gaseous state is of the order of one-thousandth of the density of the same substance in the solid or liquid state.

    0
    1
  • It had a population of 88,744 in .1901, showing an increase of 20% in the decade and giving a density of 9 inhabitants to the sq.

    0
    1
  • An unusual density of urban settlement, furnishing excellent home markets and transportation facilities, are the main props of this new interest.

    0
    1
  • Other parts of the state, where connected with the main highway, are influenced by it to some extent; but away from the great natural route of commerce New York is not especially noteworthy either for it, density of population or for extensive manufacturing and commerce.

    0
    1
  • The population in 1905 was 1,641,746, showing a mean density of 166 to the sq.

    0
    1
  • The kinetic energy per cubic centimetre is 2 pu t, where is the density and u is the velocity of disturbance due to the passage of the wave.

    0
    1
  • When a wave of sound travelling through one medium meets a second medium of a different kind, the vibrations of its own particles are communicated to the particles of the new medium, so that a wave is excited in the latter, and is propagated through it with a velocity dependent on the density and elasticity of the second medium, and therefore differing in general from the previous velocity.

    0
    1
  • If U is the velocity of sound in a gas at pressure P with density p, and if waves of length X and frequency N are propagated through it, then the distanc?e l between the dust-heaps is 2 = N - zN Vyp' where y is the ratio of the two specific heats.

    0
    1
  • At B there is only the latter kind, and since the transfer of matter is powoU, where po is the undisturbed density and wo is the undisturbed cross-section, since its velocity is U the passage of momentum per second is powoUo 2.

    0
    1
  • If p is the density at A, and w the cross-section, then the momentum carried past A is pc,(U - u) 2.

    0
    1
  • The mass of matter moving through A per second is pwa 2 U, where a is the radius of the wire and p is its density.

    0
    1
  • Substituting in (33) we get U 2 = n/p. (34) If we now keep the wire at rest the disturbance travels along it with velocity U= d (nip), and it depends on the rigidity and density of the wire and not upon its radius.

    0
    1
  • Let E be the effective elasticity of the aether; then E = pc t, where p is its density, and c the velocity of light which is 3 X 10 10 cm./sec. If = A cos" (t - x/c) is the linear vibration, the stress is E dE/dx; and the total energy, which is twice the kinetic energy Zp(d/dt) 2 dx, is 2pn2A2 per cm., which is thus equal to 1.8 ergs as above.

    0
    1
  • It follows that the density of the aether must exceed io 18, and its elastic modulus must exceed Io 3, which is only about io s of the modulus of rigidity of glass.

    0
    1
  • The most fundamental experimental confirmation that the theory of the aether has received on the optical side in recent years has been the verification of Maxwell's proposition that radiation exerts mechanical force on a material system, on which it falls, which may be represented in all cases as the resultant of pressures operating along the rays, and of intensity equal at each point of free space to the density of radiant energy.

    0
    1
  • In respect of population it occupies the tenth place among European countries; in respect of size the fourteenth place; in density of population the seventh.

    0
    1
  • It is further assumed, as the result of experiment, that the resistance is proportional to the density of the air; so that if the standard density changes from unity to any other relative density denoted by then R= Td 2 p, and is called the coefficient of tenuity.

    0
    1
  • Starting with the experimental values of p, for a standard projectile, fired under standard conditions in air of standard density, we proceed to the construction of the ballistic table.

    0
    1
  • As a preliminary step to the determination of the pressure in the bore of a gun, it is desirable to measure the pressure obtained by exploding a charge of powder in a closed vessel, varying the weight of the charge and thereby the density of the powder-gas.

    0
    1
  • Sometimes the factor 27.68 is employed, corresponding to a density of water of about 62-4 lb per cub.

    0
    1
  • The experimental determination of the time of burning under the influence of the varying pressure and density, and the size of the grain, is thus of great practical importance, as thereby it is possible to estimate close limits to the maximum pressure that will be reached in the bore of a gun, and to design the chamber so that the G.D.

    0
    1
  • This fact, coupled with the determination of the vapour density of the gas, establishes the molecular formula CO.

    0
    1
  • Its Vapour Density Is 2.1046 (Air= I).

    0
    1
  • There appears, however, to be some objection to the use of iridio-platinum for weights, as, owing to its great density (Δ=21.57), the slightest abrasion will make an appreciable difference in a weight; sometimes, therefore, quartz or rock-crystal is used; but to this also there is some objection, as owing to its low density (Δ=2.65) there is a large exposed surface of the mass.

    0
    1
  • Owing to the great pressure on the soil from the density of the population, to the reluctance to part with land characteristic of small proprietors, to the generally great productiveness of land and to the very light assessment of government revenue, land in Ballia, for agricultural purposes merely, has a market value higher than in almost any other district.

    0
    1
  • Asplanchnaceae, plankton, dwellers in small pools, are, however, ovoid, and Trochosphaera is spherical and must owe its floating powers to the low density of the liquid in its enormously dilated bodycavity.

    0
    1
  • The sodium vapour in the middle is very dense on the heated side, the density diminishing rapidly towards the upper part of the tube, so that, although not prismatic in form, it refracts like a prism owing to the variation in density.

    0
    1
  • Meyer (Be y ., 1880, 1 3, p. 394), who found that the change of colour was accompanied by a change of vapour density.

    0
    1
  • In the eastern forest region the number of species decreases somewhat from south to north, but the entire region differs from the densely forested region of the Pacific Coast Transition zone in that it is essentially a region of deciduous or hardwood forests, while the latter is essentially one of coniferous trees; it differs from the forested region of the Rocky Mountains in that the latter is not only essentially a region of coniferous trees, but one where the forests do not by any means occupy the whole area, neither do they approach in density or economic importance those of the eastern division of the country.

    0
    1
  • Total area covered by Density of population.

    0
    1
  • On the westward slopes, especially of the Selkirks and Coast Ranges, vegetation is almost tropical in its density and luxuriance, the giant cedar and the Douglas fir sometimes having diameters of 10 ft.

    0
    1
  • The density of population is greatest in Prince Edward Island, where it is 51.6 to the sq.

    2
    2
  • This is not an indication of the density in settled parts; as in Quebec, Ontario and the western provinces there are large unpopulated districts, the area of which enters into the calculation.

    0
    1
  • The quantity of mercury or shot inserted depends upon the density of the liquids for which the hydrometer is to be employed, it being essential that the whole of the bulb should be immersed in the heaviest liquid for which the instrument is used, while the length and diameter of the stem must be such that the hydrometer will float in the lightest liquid for which it is required.

    0
    1
  • If we wish the successive divisions of the scale to correspond to equal increments in the density of the corresponding liquids, then the volumes of the instrument, measured up to the successive divisions of the scale, must form a series in harmonical progression, the lengths of the divisions increasing as we go up the stem.

    0
    1
  • The greatest density of the liquid for which the instrument described above can be employed is W/V, while the least density is W/(Vd-nlA), or W/(V-Fv), where v represents the volume of the stem between the extreme divisions of the scale.

    0
    1
  • But it is clear that if we increase A, the sectional area of the stem, we shall diminish 1, the length of a scale-division corresponding to a given variation of density, and thereby proportionately diminish the sensibility of the instrument, while diminishing the section A will increase land proportionately increase the sensibility, but will diminish the range over which the instrument can be employed.

    0
    1
  • The volume of the displaced liquid being then always the same, its density will be proportional to the whole weight supported, that is, to the weight of the instrument together with the weights required to be placed in the scale pan.

    0
    1
  • To determine the density of solids heavier than water with this.

    0
    1
  • Hence, since the weight of the solid itself is W-w, its density must be (W-w)/(wi-w).

    0
    1
  • To use the instrument for liquids of much greater density than water additional weights must be placed in the upper pan, and the "plongeur" is then placed in the lower pan for the purpose of giving to the instrument the requisite stability.

    0
    1
  • It will thus be seen that the whole length of the stem corresponds to a difference of density of about 04, and one division to about 00074, indicating a difference of little more than a% in the strength of any sample of spirits.

    0
    1
  • In Beck's hydrometer the zero of the scale corresponds to density 1 000 and the division 30 to density.

    0
    1
  • Goldstein 7 was able to show that an increase in the current density is capable of destroying the well-known spectra of the alkali metals, replacing them by quite a new set of lines.

    0
    1
  • According to independent experiments by Paschen the radiation of the D line sent out by the sodium flame of sufficient density is nearly equal to that of a black body at 'the same temperature.

    0
    1
  • The discussion as to the causes of this widening has turned a good deal on the question whether it is primarily due to changes of density, pressure or temperature, but some confusion has been caused by the want of proper definition of terms. For the cause of this the writer of the present article is jointly with others at any rate partly responsible, and clearness of ideas can only be re-established by investigating the mechanical causes of the effect rather than by applying terms which refer to a different order of physical conceptions.

    0
    1
  • But is this alone sufficient to justify us in assigning the widening to increased density?

    0
    1
  • Increased density at the same temperature means in the first place a reduction of the average distance between the molecules, but it means also a reduction in the mean free path and an increase in the number of impacts.

    0
    1
  • If it is the average distance irrespective of length of path and of number of impacts we should be justified in ascribing the effect to density, but if it is the number of impacts it would be more reasonable to ascribe it to pressure.

    0
    1
  • Experimentally we should be confined to a strict investigation of absorption spectra, because in the electric discharge temperature has no definite meaning, and variations of pressure and density are not easily measured.

    0
    1
  • Assuming for a moment the change to be one of density and leaving out of account the pressure shift, the cases (e) and (f) point to the fact that it is the closeness of packing of similar molecules which is effective, e.g.

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  • Experiment (c) is, however, generally taken to mean that this closeness of packing cannot be the sole determining cause, for it is argued that if a closed vacuum tube can show both wide and narrow lines according to the mode of discharge, density alone cannot account for the change.

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  • When we compare together electric discharges the intensity of which is altered by varying, the capacity, we are unable to form an opinion as to whether the effects observed are due to changes in the density of the luminous material or changes of temperature, but the experiments of Sir William and Lady Huggins 1 with the spectrum of calcium are significant in suggesting that it is really the density which is also the determining factor in cases where different concentrations and different spark discharges produce a change in the relative intensities of different lines.

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  • Schuster suggested that the proximity of molecules vibrating in the same period might be the cause of the diminished frequency, and suggested that according to this view the shifts would be similar if the increase of density were produced by the presence of molecules of a different kind from those whose lines are being examined.

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  • Fitzgerald 6 suggested as an alternative explanation the change of inductive capacity of the medium due to increased density.

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  • That orthoboric acid is a tribasic acid is shown by the formation of ethyl orthoborate on esterification, the vapour density of which corresponds to the molecular formula B(0C2H5)3; the molecular formula of the acid must consequently be B(OH) 3 or H 3 B0 3.

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  • This is expressed by saying that the density of gold is about two and a half times that of iron.

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  • The product of the volume and density of a body measures what is called its "mass."

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  • The density is 317 per sq.

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  • Solutions were not distinguished from definite chemical compounds till John Dalton discovered the laws of definite and multiple proportions, but many earlier observations on the solubility of solids in water and the density of the resulting solutions had been made.

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