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" ... 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 from his place in the heavens, and consequently, that he always enlightens 180 degrees, or one half of the earth.... "
A System of Natural Philosophy: In which the Principles of Mechanics ... - Page 238
by John Lee Comstock - 1834 - 295 pages
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A Treatise on Astronomy: Illustrated with Maps and Plates

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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The American School Geography: Embracing a General View of Mathematical ...

Barnum Field - Geography - 1837 - 166 pages
...four seasons? What in the figures represent The Earth's axis? Polar circles? Tropics? Equator? If tiie axis of the Earth were perpendicular to the plane of its orbit, how would the Sun shine? How much is the axis of the Earth inclined,and what does this inclination...
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The American School Geography: Embracing a General View of Mathematical ...

Barnum Field - Geography - 1840 - 168 pages
...a, a, represent the Earth's axis; p, c, the polar circles; t, c, the tropics, and E the Equator. If the axis of the Earth were perpendicular to the plane of its crbit, the Sun, it is evident, would shine twelve hours upon one side of the Earth, from pole to pole,...
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The Millennial Harbinger, Volume 4

Alexander Campbell, Charles Louis Loos - Bethany (W. Va.) - 1840 - 632 pages
...the ecliptic, or to the plane of its own orbit; and this gives us a variety of seasons: whereas if the axis of the earth were perpendicular to the plane of its own orbit round the sun, the following three consequences would be inevitable:— I. Its north and...
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The Christian Messenger and Family Magazine, Volume 1

Churches of Christ - 1845 - 396 pages
...the ecliptic, or to the plane of its own orbit; and this gives ns a variety of seasons: whereas if the axis of the earth were perpendicular to the plane of its own orbit round the sun, the following three consequences would be inevitable : — 1. Its north and...
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A manual of natural philosophy, by J.L. Comstock and R.D. Hoblyn

John Lee COMSTOCK (and HOBLYN (Richard Dennis)), John Lee COMSTOCK - 1846 - 506 pages
...from his place in the heavens, and, consequently, that he always enlightens 180 degrees, or one half the earth. If, therefore, the axis of the earth were...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,...
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A grammar of general geography, by J. Goldsmith, revised by E. Hughes

Richard Phillips (sir.) - 1851
...from his place in the heavens, and, consequently, that he always enlightens 180 degrees, or one half the earth. If, therefore, the axis of the earth were...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,...
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A System of Natural Philosophy: in which are Explained the Principles of ...

John Lee Comstock - Physics - 1852 - 576 pages
...degrees north, and 90 degrees south, from his place in the heavens, and consequently, that he alwsy; enlightens 180 degrees, or one half of the Earth....axis of the Earth were perpendicular to the plane of it; orbit, the days and nights would every where be equal, for 1B the Earth performs its diurnal revolutions,...
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A System of Natural Philosophy: In which are Explained the Principles of ...

John Lee Comstock - 1854 - 422 pages
...nights, from the equator to the arctic circle. 187. The Sunalways Shines on 180 Degrees of the Earth. — It will be observed by a careful perusal of the above...would be 12 hours day, and 12 hours night. But since the inclination of its axis is 23£ 'degrees, the light of the Sun is thrown 23^ degrees further in...
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A System of Natural Philosophy, in which are Explained the Principles of ...

John Lee Comstock - 1854 - 418 pages
...of the Earth will also be represented. ' DAY AND NIGHT. 180. 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 half of the Earth, from pole to pole, would be enlightened,...
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