On the Connexion of the Physical SciencesMurray, 1858 - 555 pages |
From inside the book
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Page 31
... distance of about 190,000,000 of miles ; whence it is estimated that light travels at the rate of 192,000 miles in one second . Such is its velocity , that the earth , moving at the rate of nineteen miles in a second , would take two ...
... distance of about 190,000,000 of miles ; whence it is estimated that light travels at the rate of 192,000 miles in one second . Such is its velocity , that the earth , moving at the rate of nineteen miles in a second , would take two ...
Page 34
... Distances Mean Distance of the Sun from the Earth obtained from Lunar Theory Absolute Distances of the Planets , how found . - OUR constant companion , the moon , next claims our attention . Several circumstances concur to render her ...
... Distances Mean Distance of the Sun from the Earth obtained from Lunar Theory Absolute Distances of the Planets , how found . - OUR constant companion , the moon , next claims our attention . Several circumstances concur to render her ...
Page 35
... distance of the moon from the sun ; but its absolute value also varies with her distance from the perigee ( N. 102 ) of her orbit . Ancient astronomers , who observed the moon solely with a view to the prediction of eclipses , which can ...
... distance of the moon from the sun ; but its absolute value also varies with her distance from the perigee ( N. 102 ) of her orbit . Ancient astronomers , who observed the moon solely with a view to the prediction of eclipses , which can ...
Page 38
... distance from the earth , and occasions the acceleration in the moon's mean motion , must affect the nodes and perigee . It consequently appears , from theory as well as observation , that both these elements are subject to a secular ...
... distance from the earth , and occasions the acceleration in the moon's mean motion , must affect the nodes and perigee . It consequently appears , from theory as well as observation , that both these elements are subject to a secular ...
Page 39
... distance , the diameter of the sun would be seen from her centre under an angle of 1918 ′′ -1 . That of the earth would appear under an angle of 6908 ′′ .3 . So that the length of the shadow is at least three times and a half greater ...
... distance , the diameter of the sun would be seen from her centre under an angle of 1918 ′′ -1 . That of the earth would appear under an angle of 6908 ′′ .3 . So that the length of the shadow is at least three times and a half greater ...
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61 Cygni action appears atmosphere attraction bismuth bodies cause centre centrifugal force chemical colour comet consequently copper crystal dark degree density diamagnetic diameter diminishes direction disturbing double stars earth ecliptic effect electricity equal equator ethereal medium excentricity Fcap force glass gravitation greater heat hemisphere increase intensity Jupiter latitude length light lines liquid longitude luminous lunar magnetic major axis mass meridian metallic miles moon motion move nearly nebula nodal lines nodes northern hemisphere NOTE nutation observed optic axis orbit oscillations parallax paramagnetic particles passing perihelion periodic phenomena planets plate polarized pole position Post 8vo produced quantity rays reflected refraction refrangible revolution revolving right angles rings rotation round satellites Sir John Herschel solar spectrum space stars substances sun's surface telescope temperature terrestrial tion tourmaline transmitted tricity undulations Uranus vapour variation velocity vibrations Vols Voltaic waves wire Woodcuts