 | Jacques Rohault - Physics - 1723 - 358 pages
...it would ap~Eaft in the pear to defcribe a Circle, which would indeed be the fame as the Equator, if the Axis of the Earth were perpendicular to the Plane of its annual Circle, but muft now differ from it, and interfeiS it at an Angle of Twenty-three Degrees and... | |
 | John Keill - 1745 - 352 pages
...all thofe Viciffitudes of Seafon that yearly happen, w'st. Summer, Winter, Spring, and Autumn: for if the Axis of the Earth were perpendicular to the Plane of its Orbit, there would be no Alterations of Seafbns, no Differences in the Days and Nights, but every Part of... | |
 | George Adams - Astronomy - 1812 - 586 pages
...sinking and rising is perceptible over the < ;. ?., irf I'- $ -ir r ,f :•) -.;.-.• : whole globe. If the axis of the earth were perpendicular to the plane of its orbit, the equator and the orbit (or ecliptic)^ would coincide ; and as the sun is always in the plane of the... | |
 | George Adams - Astronomy - 1812 - 552 pages
...summer than in winter; and this alternate sinking and rising is perceptible over the whole globe, If the axis of the earth were perpendicular to the plane of its orbit, the equator and the orbit (or ecliptic), would coincide ; and as the sun is always in the plane of the... | |
 | John Lee Comstock - Physics - 1813 - 448 pages
...the real path of the earth t through the heavens, is the real path of the earth round the sun. 822. It will be observed by a careful perusal of the above...the plane of its orbit, the days and nights would everywhere be equal, for as the earth performs its diurnal revolutions, there would be 12 hours day,... | |
 | John Lee Comstock - Physics - 1831 - 312 pages
...revolution of the earth will also be represented. Day and Night. Were the direction of the earth's axis perpendicular to the plane of its orbit, the days and nights would be of equal length all the year, for then just one ha'rf of the earth, from pole to pole, would be... | |
 | John Lee Comstock - Physics - 1834 - 304 pages
...the sun from east to west '? What is the apparent path of the sun, but the real path of the earth 7 the earth is in any point of its orbit, the sun will...would be 12 hours day, and 12 hours night. But since tne inclination of its axis is 23i degrees, the light of the sun is thrown 23i degrees beyond the north... | |
 | John Lee Comstock - 1835 - 308 pages
...motion of the sun, from east to west, is caused by the real motion of the earth from west to east. If It will be observed by a careful perusal of the above...performs its diurnal revolutions, there would be 12 hours clay, and 12 hours night. But since the inclination of its axis is 23i degrees, the light of the sun... | |
 | John Lee Comstock - Physics - 1836 - 308 pages
...days and nights are again equal all over the world, and the sun is said to be in his vernaequinox. Thus the apparent motion of the sun, from east to...12 hours night . But since the inclination of its axis'is 23i degrees, the light of the sun is thrown 234 decrees beyond the north pole ; that is, it... | |
 | Mrs. L. H. Tyler - Astronomy - 1837 - 302 pages
...described in that article, and in adWill you explain how this may be illustrated by fig. 43 ? Suppose the axis of the earth were perpendicular to the plane of its orbit, what would be the consequence? How much is it inclined ? What is the consequence of this? What experiment... | |
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It will be observed by a careful perusal of the above explanation of the seasons, and a close inspection of the figure by which it is illustrated, that the sun constantly shines on a portion of the earth equal to 90 degrees north, and 90 degrees south... 
