## Diameters Sentence Examples

- Archimedes concluded from his measurements that the sun's diameter was greater than 27' and less than 32'; and even Tycho Brahe was so misled by his measures of the apparent
**diameters**of the sun and moon as to conclude that a total eclipse of the sun was impossible.' - (1773), p. 190) also gives results of measurements by Gascoigne of the
**diameters**of the moon, Jupiter, Mars and Venus with his micrometer. - A, The youngest stage, is magnified 22
**diameters**; b, older, is magnified 8**diameters**; c, .the adult medusa, is magnified 6**diameters**. - In the middle part of a rod which has a length of 400 or 500
**diameters**the effect of the ends is insensible; but for many experiments the condition of endlessness may be best secured by giving the metal the shape of a ring of uniform section, the magnetic field being produced by an electric current through a coil of wire evenly wound round the ring. - When the length of the wire exceeds 400
**diameters**, or thereabouts, Ho may generally be considered as equivalent to H, 10. - With these arrangements there is no demagnetizing force to be considered, for the ring has not any ends to produce one, and the force due to the ends of a rod 400 or 500
**diameters**in length is quite insensible at the middle portion; H therefore is equal to Ho. - Webs serve not only for pointing on stars to determine their coordinates (in manner afterwards described), but also for estimating the
**diameters**of the star-images in terms of these 4" intervals. - Hence, if p is the maximum value of the mean effective pressure corresponding to about 85% of the boiler pressure,, uW = pd 2 le /D (26) is an expression giving a relation between the total weight on the coupled wheels, their
**diameters**and the size of the cylinder. - Four strings of iron casing are usually employed, having the following
**diameters**: to in., 84 in., 64 in. - In another respect the observations of Fraunhofer appear at first sight to be in disaccord with theory; for his measures of the
**diameters**of the red rings, visible when white light was employed, correspond with the law applicable to dark rings, and not to the different law applicable to the luminous maxima. - Young employed this method not only to determine the
**diameters**of cloud particles (e.g. - The error thus arising may be compensated by a rotation of the object-glass about one of the
**diameters**y= =x. - The typical Egyptian obelisk is an upright monolith of nearly square section, generally to
**diameters**in height, the sides slightly convex, tapering upwards very gradually and evenly, and terminated by a pyramidion whose faces are inclined at an angle of 60°. - The spurious bows he showed to consist of a series of dark and bright bands, whose distances from the principal bows vary with the
**diameters**of the raindrops. - Taking advantage of these results, Henri Pitot (1695-1771) afterwards showed that the retardations arising from friction are inversely as the
**diameters**of the pipes in which the fluid moves. - He was the first to describe an instrument fitted with a sight and paper screen for observing the
**diameters**of the sun and moon in a dark room. - Forged and annealed, magnified r000
**diameters**, showing pearlite. - In Byzantine times five columns, of various
**diameters**, with no two bases of the same size, bearing Corinthian capitals, were set up about 6 ft. - Sca, through,, u rpov, measure), in geometry, a line passing through the centre of a circle or conic section and terminated by the curve; the "principal
**diameters**of the ellipse and hyperbola coincide with the "axes" and are at right angles; " conjugate**diameters**" are such that each bisects chords parallel to the other. - 2) to determine the height of a column, which should vary from eight to ten
**diameters**according to the intercolumniation: and it is generally the custom to fix the lower diameter of the shaft by the height required and the Order employed. - He, however, successfully employed the instrument in measuring double stars, so close as I" or 2", and using a power of 300
**diameters**, with results that agreed satisfactorily amongst themselves and with those obtained with the filar micrometer. - Arago made many measures of the
**diameters**of the planets with such a micrometer. - By making very thin sections and employing high magnification (1000-1200
**diameters**), Renault has been enabled to detect numerous forms of bacilli in the woody parts preserved in coal, one of which, Micrococcus carbo, bears a strong resemblance to the living Cladothrix found in trees buried in peat bogs. - It has therefore been proposed, for greater depths, to put four columns of tubbings of smaller
**diameters**, 82 and 52 ft., in the shaft, and fill up the remainder of the boring with concrete, so that with thinner and lighter castings a greater depth may be reached. - The same thing can be effected in a more perfect manner by the use of spiral or scroll drums, in which the rope is made to coil in a spiral groove upon the surface of the drum, which is formed by the frusta of two obtuse cones placed with their smaller
**diameters**outwards. - In the following table are given the values of the
**diameters**of the molecules of six substances with which it is easy to experiment in the gaseous state, these values being calculated in different ways from formulae supplied by the kinetic theory. - It is an erecting telescope with a field of view of 10° and a magnification of 3
**diameters**, and admits plenty of light. - In the memoir cited above Regnault gives an account of determinations of the velocity in air in pipes of great length and of
**diameters**ranging from o 108 metres to i i metres. - But with the sole exception of proving that the volumes of spheres are in the triplicate ratio of their
**diameters**, a theorem probably due to Eudoxus, no mention is made of its mensuration. - That " circles are to one another as the squares on their
**diameters**" and that " in the greater of two concentric circles a regular 2n-gon can be inscribed which shall not meet the circumference of the less," however nearly equal the circles may be. - 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. - The
**diameters**range from 400 m. - Similarly, the
**diameters**of flat or spheroidal colonies may vary from a few times to many hundred times that of the individual cells, the divisions of which have produced the colony. - The distance between the planes is supposed to be very small compared with their ultimate
**diameters**, but at the same time large enough to exceed the range of the attractive forces. - The letters A B show a vertical section through a fragment of a potato leaf, enlarged 1_00
**diameters**; A is the upper surface line, and B the lower; the lower surface of the leaf is shown at the top, A Fin. - One is shown more highly magnified (400
**diameters**) at F; the contained protoplasm breaks up into a definite number of parts as at G, forming eight minute mobile bodies called "zoospores," each zoospore being furnished with two extremely attentuated vibrating hairs termed "cilia," as shown at H. - The problem is identical with that of finding the common conjugate
**diameters**of the ellipsoids T(x, y, I) =const., V(x, y, 1) =const. - If in (21) we imagine that x, y, I denote infinitesimal rotations of a solid free to turn about a fixed point in a given field of force, it appears that the three normal modes consist each of a rotation about one of the three
**diameters**aforesaid, and that the values of in are proportional to the ratios of the lengths of corresponding**diameters**of the two quadrics. - For example, all ellipsoids referred to co-ordinates parallel to any three conjugate
**diameters**are parallel projections of each other and of a sphere referred to rectangular co-ordinates. - Hookes wheels with oblique or helical teeth are in fact screws of many threads, and of large
**diameters**as compared with their lengths. - It may further be shown that if Binets ellipsoid be referred to any system of conjugate
**diameters**as co-ordinate axes, its equation will be ~2+~2+~-2I, (27) - The path is therefore an ellipse of which a, b are conjugate semi-
**diameters**, and is described in the period 24 Ju; moreover, the velocity at any point P is equal to ~ OD, where OD is the semi-diameter conjugate to OP. ~,This type of motion;,s called elliptic harmonic. If the co-ordinate axes are the principal axes of the ellipse, the angle ft in (I o) is identical with the excentric angle.