Popular Astronomy: A Series of Lectures Delivered at IpswichMacmillan, 1868 - 292 σελίδες |
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Σελίδα 16
... experiments which I cannot attempt to exhibit to an audience like this . But it may be shown in various ways ; as , for instance , by forming a prism of glass , and compressing more air into it ; or again , by exhausting the air from it ...
... experiments which I cannot attempt to exhibit to an audience like this . But it may be shown in various ways ; as , for instance , by forming a prism of glass , and compressing more air into it ; or again , by exhausting the air from it ...
Σελίδα 18
... experiments on glass and water , and computing from this what ought to be the deflection of light , and what ought to be the elevation of the star produced by the refraction of light by the atmosphere , and applying that as a correction ...
... experiments on glass and water , and computing from this what ought to be the deflection of light , and what ought to be the elevation of the star produced by the refraction of light by the atmosphere , and applying that as a correction ...
Σελίδα 20
... experiments with a common burning glass , or a reading glass , or spectacle glass , such as is used by elderly people . Suppose , now , that the stand GH is placed on the south side of A , and that a lamp is slid along it suc- cessively ...
... experiments with a common burning glass , or a reading glass , or spectacle glass , such as is used by elderly people . Suppose , now , that the stand GH is placed on the south side of A , and that a lamp is slid along it suc- cessively ...
Σελίδα 45
... experimental case before us , I mean a line per- pendicular , not to the horizon , but to the surface of the trough ... experiments too , that air produces re- fraction . We apply the same laws which relate to water or glass , to the ...
... experimental case before us , I mean a line per- pendicular , not to the horizon , but to the surface of the trough ... experiments too , that air produces re- fraction . We apply the same laws which relate to water or glass , to the ...
Σελίδα 71
... Lectures were delivered , M. Foucault has devised some experiments which demonstrate that the Earth dues rotate , An account of these will be found in the Appendix . low . In summer , the sun is a long LECTURE II . 71.
... Lectures were delivered , M. Foucault has devised some experiments which demonstrate that the Earth dues rotate , An account of these will be found in the Appendix . low . In summer , the sun is a long LECTURE II . 71.
Άλλες εκδόσεις - Προβολή όλων
Popular Astronomy: A Series of Lectures Delivered at Ipswich George Biddell Airy Πλήρης προβολή - 1868 |
Popular Astronomy: A Series of Lectures Delivered at Ipswich George Biddell Airy Πλήρης προβολή - 1868 |
Συχνά εμφανιζόμενοι όροι και φράσεις
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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