On the Connexion of the Physical SciencesJ. Murray, 1858 - 523 pages |
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Page 43
... angles which the visual rays from the object form with it are measured ; their sum sub- tracted from two right angles gives the angle opposite the base ; therefore , by trigonometry , all the angles and sides of the triangle may be ...
... angles which the visual rays from the object form with it are measured ; their sum sub- tracted from two right angles gives the angle opposite the base ; therefore , by trigonometry , all the angles and sides of the triangle may be ...
Page 43
... angles which the visual rays from the object form with it are measured ; their sum sub- tracted from two right angles gives the angle opposite the base ; therefore , by trigonometry , all the angles and sides of the triangle may be ...
... angles which the visual rays from the object form with it are measured ; their sum sub- tracted from two right angles gives the angle opposite the base ; therefore , by trigonometry , all the angles and sides of the triangle may be ...
Page 46
... angles of one degree , from the poles to the equator , are all proportional to the square of the cosine of the latitude ( N. 124 ) . These quantities are so con- nected with the ellipticity of the spheroid , that the total increase in ...
... angles of one degree , from the poles to the equator , are all proportional to the square of the cosine of the latitude ( N. 124 ) . These quantities are so con- nected with the ellipticity of the spheroid , that the total increase in ...
Page 47
... angle contained between the verticals at the extremities of the arc . This would be easily accomplished were the ... angles of which are either measured or computed , so that the length of the arc is ascertained with much laborious ...
... angle contained between the verticals at the extremities of the arc . This would be easily accomplished were the ... angles of which are either measured or computed , so that the length of the arc is ascertained with much laborious ...
Page 52
... angle at the moon can be measured , all the angles and one side are given ; whence the distance of the moon from the centre of the earth may be computed . The parallax of an object may be found , if two observers under the same meridian ...
... angle at the moon can be measured , all the angles and one side are given ; whence the distance of the moon from the centre of the earth may be computed . The parallax of an object may be found , if two observers under the same meridian ...
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61 Cygni absorbed action appears atmosphere attraction bismuth blue bodies centre centrifugal force chemical circular polarization coloured rings comet consequently copper crystal dark density diamagnetic diameter diminishes direction distance disturbing earth ecliptic effect electricity equal equator ethereal medium excentricity experiments extreme force gravitation greater heat hemisphere increase intensity Jupiter latitude length lines liquid longitude luminous lunar magnetic mass mean meridian metallic miles molecules moon motion move nebula nodal lines nodes NOTE nutation observed optic axis orbit parallax paramagnetic particles passing perihelion period perpendicular phenomena plane polarized light pole position prism produced quantity rays reflected refraction refrangible retrograde motion revolution revolving right angles rotation round satellites Sir John Herschel solar spectrum sound space stars substances sun's surface telescope temperature terrestrial theory tion tourmaline transmitted tricity undulations Uranus vapour velocity vibrations violet visible Voltaic waves wire