No form of the elastic solid theory is admissible except that in which the vibrations are supposed to be perpendicular to the plane of polarization, and the difference between one medium and another to be a difference of density only (Phil.
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.
The density of population is 85.38 per sq.
The accepted atomic weight is accordingly double the density, i.e.
(-268.7° C.), the density of the liquid 0.154, the critical temperature 5° abs., and the critical pressure 2.3 atmospheres (Communications from the Physical Laboratory at Leiden, No.
The cadmium molecule, as shown by determinations of the density of its vapour, is monatomic. The metal unites with the majority of the heavy metals to form alloys; some of these, the so-called fusible alloys, find a useful application from the fact that they possess a low melting-point.
The average density increased from 257.21 per sq.
The outer layers are denser than the inner, the density decreasing more or less uniformly from the outside layers to the centre of hilum.
One half of the earth has therefore a greater density than the other.
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.
It exhibits in a marked degree the density ol species which, as already pointed out, is explicable by the arrest 01 further southern expansion.
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.'
Considering the average density of population within the political limits of countries, the following list is of some value; the figures for a few smaller divisions of large countries are added (in brackets) for comparison: Average Population on i sq.
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.
The country is divided into 19 departments, the area and the population of which, according to the census of 1908, are given in the subjoined table: The average density of population on the above figures is 12.9 per sq.
Biltz (Ber., 1888, 21, p. 2013; 1901, 34, p. 2490) showed that the vapour density decreased with the temperature, and also depended on the pressure.
The solution obtained may be evaporated in vacuo until it attains a density of 1.46 when, if partially saturated with potassium hydroxide and filtered, it yields crystals of potassium pentathionate, K 2 S 5 0 6.3H 2 0.
Province Or Government European Russia - Archangel Astrakhan Bessarabia Chernigov Courland Don Cossacks' territory Ekaterinoslav Esthonia Grodno Kaluga Kazan Kiev Kostroma Kovno Kursk Kharkov Kherson Poland Kalisz Kielce Lomza Lublin Grand-Duchy of Finland- Abo-Bjbrneborg Kuopio Nyland Caucasia- Kuban Baku Black Sea territory Daghestan Russia in Asia- Turkestan- Transcaspia Western Siberia- Tobolsk Tomsk Eastern Siberia Irkutsk Yakutsk Transbaikalia Yeniseisk Amur Region Amur Maritime Province Sakhalin It has been found, from a comparison of the densities of population of the various provinces in 1859 with the distribution in 1897, that the centre of density has distinctly moved S., towards the shores of the Black Sea, and W., the greatest increase having taken place in the E.
The distance between stations on intra-urban railways is governed by the density of local traffic and the speed desired to be maintained.
Henry Cavendish, from which it appeared that Cavendish, already famous by many other researches (such as the mean density of the earth, the composition of water, &c.), must be looked on as, in his day, a man of Maxwell's own stamp as a theorist and an experimenter of the very first rank.
The density of population in 1900 was 33.5 per sq.
He burned phosphorus in air standing over mercury, and showed that (1) there was a limit to the amount of phosphorus which could be burned in the confined air, (2) that when no more phosphorus could be burned, one-fifth of the air had disappeared, (3) that the weight of the air lost was nearly equal to the difference in the weights of the white solid produced and the phosphorus burned, (4) that the density of the residual air was less than that of ordinary air.
According to the law of Avogadro, equal volumes of different gases under the same conditions of temperature and pressure contain equal numbers of molecules; therefore, since the density depends upon the number of molecules present in unit volume, it follows that for a comparison of the densities of gases, the determinations must be made under coincident conditions, or the observations reduced or re-computed for coincident conditions.
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.
Density, specific heat, &c.) of the original and the resulting modification, a change being in general recorded only when polymorphism exists.
The strongest and most reliable hold which the ship has upon the whale when moored alongside, is by the flukes or tail; and as from its greater density that part is relatively heavier than any other (excepting the side-fins), its flexibility even in death, causes it to sink low beneath the surface; so that with the hand you cannot get at it from the boat, in order to put the chain round it.