The Planetary and Stellar Worlds: A Popular Exposition of the Great Discoveries and Theories of Modern Astronomy. In a Series of Ten LecturesOakley & Mason, 1868 - 320 páginas |
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Página xi
... equal to all that man could do , but passing beyond the limits of his greatest intellectual vigor . Hence , in all ages and countries , the abso- lute strength of human genius may be measured by its reach to unfold the mysteries of the ...
... equal to all that man could do , but passing beyond the limits of his greatest intellectual vigor . Hence , in all ages and countries , the abso- lute strength of human genius may be measured by its reach to unfold the mysteries of the ...
Página 25
... equal or unequal ? Did any tie bind them to the earth , or to the sun , or to each other ? Were their distances from the earth constant or C väriable ? Were their motions irregular , or gu ded INTRODUCTORY LECTURE . 25.
... equal or unequal ? Did any tie bind them to the earth , or to the sun , or to each other ? Were their distances from the earth constant or C väriable ? Were their motions irregular , or gu ded INTRODUCTORY LECTURE . 25.
Página 29
... equal importance and intricacy presented themselves in the outset of the examination now fairly commenced . Human skill was exhausted in the contrivance and construction of mechanical aids by which the movements of the planets might be ...
... equal importance and intricacy presented themselves in the outset of the examination now fairly commenced . Human skill was exhausted in the contrivance and construction of mechanical aids by which the movements of the planets might be ...
Página 33
... equal ease , at the beginning , middle , or close of a thousand revolutions , though each of these should require a century for its accomplishment . Armed with this analysis , which the mind had crea ted for its use , giving to it a ...
... equal ease , at the beginning , middle , or close of a thousand revolutions , though each of these should require a century for its accomplishment . Armed with this analysis , which the mind had crea ted for its use , giving to it a ...
Página 56
... equal length , and the distance to which the shadow of the gnomon was thrown on that day , was ac- curately fixed . If on this day the diurnal circle des- cribed by the sun , could have been marked in the heavens by a circle of light ...
... equal length , and the distance to which the shadow of the gnomon was thrown on that day , was ac- curately fixed . If on this day the diurnal circle des- cribed by the sun , could have been marked in the heavens by a circle of light ...
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Términos y frases comunes
absolute accomplished actually aphelion appear astonishing astronomer axis beautiful body bright celestial sphere centre centrifugal force circle cluster comet commenced computed constellations curve detected determined diameter direction discovered discovery double stars earth earth's orbit eccentricity eclipse efforts entire equal equator examination existence fact finally fixed stars force forever grand Halley's comet heavens Herschel inclined increase instrument investigation Jupiter Kepler law of gravitation laws of Kepler light limits magnitude matter mean distance mighty miles Milky millions mind moon moon's motion move movements mysterious nearly nebula night object observation observatory orbs parallax pass perihelion phenomena philosopher planet planetary planetary orbits position precisely present primitive problem proper motion reached remarkable retrograde motion revealed revolving round satellites Saturn seen slowly solar system sphere Struve sun and moon sun's sweeping tance telescope theory thousand tion truth Uranus vast velocity visible wonderful