On the Connexion of the Physical Sciences |
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Page 9
... by the imaginary extension of the plane of the terrestrial equator , is intersected by the ecliptic , or apparent path of the sun , in two points diametrically opposite to one another , called the vernal and autumnal equinoxes .
... by the imaginary extension of the plane of the terrestrial equator , is intersected by the ecliptic , or apparent path of the sun , in two points diametrically opposite to one another , called the vernal and autumnal equinoxes .
Page 30
... can be all eclipsed at the same time : for , when the second and third are in one direction , the first is in the opposite direction ; consequently , when the first is eclipsed , the other two must be between the sun and Jupiter .
... can be all eclipsed at the same time : for , when the second and third are in one direction , the first is in the opposite direction ; consequently , when the first is eclipsed , the other two must be between the sun and Jupiter .
Page 39
... it throws a conical shadow on the side of the moon opposite to the sun , the axis of which passes through the centres of the sun and earth ( N. 110 ) . The length of the shadow terminates at the point where the apparent diameters ...
... it throws a conical shadow on the side of the moon opposite to the sun , the axis of which passes through the centres of the sun and earth ( N. 110 ) . The length of the shadow terminates at the point where the apparent diameters ...
Page 43
From the extremities of a known base ( N. 116 ) , the angles which the visual rays from the object form with it are measured ; their sum subtracted from two right angles gives the angle opposite the base ; therefore , by trigonometry ...
From the extremities of a known base ( N. 116 ) , the angles which the visual rays from the object form with it are measured ; their sum subtracted from two right angles gives the angle opposite the base ; therefore , by trigonometry ...
Page 43
From the extremities of a known base ( N. 116 ) , the angles which the visual rays from the object form with it are measured ; their sum subtracted from two right angles gives the angle opposite the base ; therefore , by trigonometry ...
From the extremities of a known base ( N. 116 ) , the angles which the visual rays from the object form with it are measured ; their sum subtracted from two right angles gives the angle opposite the base ; therefore , by trigonometry ...
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Contents
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absorbed according action angle appears atmosphere attraction axis becomes bismuth blue bodies cause centre chemical colour comet consequently continually crystal dark depends determined diameter diminishes direction distance disturbing earth ecliptic effect electricity equal equator ether exist experiments extends extreme fall force give glass gravitation greater green heat increase instance intensity John known latitude length less light lines liquid magnetic mass matter mean measured medium metallic miles moon motion move nature nearly NOTE object observed opposite orbit particles passing periodic phenomena plane plate polarized pole position produced proportion proved quantity rays reflected refraction refrangible revolving rings rotation round satellites seen separated shows side similar solar sound space spectrum square stars substances surface temperature theory tion transmitted undulations varies vibrations visible waves whole wire