Popular Astronomy: A Series of Lectures Delivered at IpswichMacmillan, 1868 - 292 sider |
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Side 12
... effect is this - that the star is constantly seen in the field of view of the telescope - the telescope turns just as fast as the star moves . Observe now the results obtained from these things . The first thing I mentioned was , if the ...
... effect is this - that the star is constantly seen in the field of view of the telescope - the telescope turns just as fast as the star moves . Observe now the results obtained from these things . The first thing I mentioned was , if the ...
Side 13
... of light a trough F , whose sides are pieces of plate glass . Now pour some water into the trough , and see what effect it produces . You will observe that the light is immediately thrown to the top of the wall , as LECTURE I. 13.
... of light a trough F , whose sides are pieces of plate glass . Now pour some water into the trough , and see what effect it produces . You will observe that the light is immediately thrown to the top of the wall , as LECTURE I. 13.
Side 14
... effect is produced by the refraction of the water . It did not exist before the water was there , but it does exist now that the water is in the trough . I will now show the bearing of this matter on the subject of the disturbance in ...
... effect is produced by the refraction of the water . It did not exist before the water was there , but it does exist now that the water is in the trough . I will now show the bearing of this matter on the subject of the disturbance in ...
Side 15
... effect of it is that the beam of light which comes in this direction AB , is turned in the direction CD , or more upwards . There is a rule on this matter , which is thus expressed that the course of the light is always turned to the ...
... effect of it is that the beam of light which comes in this direction AB , is turned in the direction CD , or more upwards . There is a rule on this matter , which is thus expressed that the course of the light is always turned to the ...
Side 16
... effect of air is precisely the same in kind as the effect of water , though much less in degree . It may be stated as a general law , that where light enters from external space into air , or into water , or glass , or diamond , if you ...
... effect of air is precisely the same in kind as the effect of water , though much less in degree . It may be stated as a general law , that where light enters from external space into air , or into water , or glass , or diamond , if you ...
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Popular Astronomy: A Series of Lectures Delivered at Ipswich George Biddell Airy Uten tilgangsbegrensning - 1868 |
Popular Astronomy: A Series of Lectures Delivered at Ipswich George Biddell Airy Uten tilgangsbegrensning - 1868 |
Vanlige uttrykk og setninger
aberration of light accurate angle angular distance appear ascertain astronomers ball body bright star calculation Cambridge Cape Cavendish experiment celestial clock cloth College computed Crown 8vo curve described diameter direction disturbed earth earth's axis earth's centre earth's equator ecliptic Edition effect ellipse endeavoured equatoreal exactly explain Fcap Figure fluid globe Greenwich heavens horizon hour inclination Jupiter lecture length lunar precession Mars mean density method millions of miles moon mountain move Mural Circle nearly North Pole nutation object observations Observatory orbit parallax passes the meridian path pendulum perpendicular planets plumb-line point of Aries Polar Star position precession produced proportion pull refraction remark revolve rotation round the sun satellites seen sidereal day solar South Pole spheroid square sun's attraction sun's distance suppose supposition surface tance telescope thing tion transit instrument transit of Venus TREATISE triangle velocity vertical vibrations whole yard measure Zenith Sector
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