Fourteen Weeks in Descriptive Astronomy |
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Page 26
... in the figure ; next move a pencil along with the thread , the latter being kept tightly stretched , and the point will mark a curve which is flattened in proportion to the length of the string we use , the. 26 INTRODUCTION .
... in the figure ; next move a pencil along with the thread , the latter being kept tightly stretched , and the point will mark a curve which is flattened in proportion to the length of the string we use , the. 26 INTRODUCTION .
Page 27
... move with equal velocity in the different parts of their orbits . He next set about establish- ing some law by which ... moves the fastest , but when at its aphelion ( point furthest from the sun ) it moves the slowest . Once more he ...
... move with equal velocity in the different parts of their orbits . He next set about establish- ing some law by which ... moves the fastest , but when at its aphelion ( point furthest from the sun ) it moves the slowest . Once more he ...
Page 28
... moves very slowly , and from D to C Fig . 3 . D 3 very rapidly ; yet the space inclosed between the lines SB and SA is equal to that inclosed between SD and SC . Hence the second law- A LINE CONNECTING THE CENTRE OF THE EARTH WITH THE ...
... moves very slowly , and from D to C Fig . 3 . D 3 very rapidly ; yet the space inclosed between the lines SB and SA is equal to that inclosed between SD and SC . Hence the second law- A LINE CONNECTING THE CENTRE OF THE EARTH WITH THE ...
Page 32
... move now with the same speed which they received in the beginning from the Divine hand . But this would make them ... moves not in a straight line , but in a curve , because the earth constantly bends it downward . Application . Just so ...
... move now with the same speed which they received in the beginning from the Divine hand . But this would make them ... moves not in a straight line , but in a curve , because the earth constantly bends it downward . Application . Just so ...
Page 33
Joel Dorman Steele. Application . Just so the moon is moving around the earth , not in a straight line , but in a curve . Can it not be that the earth bends it downward , just as it does the stone ? Newton knew that a stone falls toward ...
Joel Dorman Steele. Application . Just so the moon is moving around the earth , not in a straight line , but in a curve . Can it not be that the earth bends it downward , just as it does the stone ? Newton knew that a stone falls toward ...
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Common terms and phrases
ancients Andromeda angle aphelion appearance Aries astronomers atmosphere axis body Boötes bright brilliant Canis Minor Capricornus Cassiopeia celestial centre Cepheus circle color comet conjunction constellation Cor Caroli dark density Describe diameter disk Draco earth east ecliptic equal equator equinoctial figure fixed stars full moon globe heat heavens Hercules Herschel horizon inclined inferior inferior conjunction inferior planet Jupiter latitude length light lunar Lyra magnitude Mars mean distance Mercury meridian meteors miles moon moon's motion move naked eye nearly nebula Neptune node north pole orbit Orion parallax pass path penumbra perihelion Perseus Pisces planet Polaris precession rays revolve ring rising Saturn seasons seen shadow shines shower sidereal sidereal day solar day solar system space spots summer sun's superior planet surface synodic revolution tance Taurus telescope theory tion Uranus Ursa Major Ursa Minor varies velocity Venus vernal equinox visible zodiac