 | Rollin D. Salisbury - Geology - 1907 - 864 pages
...the illuminated half and the half which is not illuminated, is the circle of illumination. If, then, the axis of the earth were perpendicular to the plane of its orbit, days and nights would always be equal everywhere. Since days and nights are not equal at all seasons... | |
 | Charles Redway Dryer - Economic geography - 1911 - 352 pages
...groups of stars visible at any given hour of the night change from week to week, and month to month. If the axis of the earth were perpendicular to the plane of its orbit, its revolution would bring no change except in the appearance of the heavens at night, and would be... | |
 | Charles Redway Dryer - Geography - 1912 - 552 pages
...groups of stars visible at any given hour of the night change from week to week, and month to month. If the axis of the earth were perpendicular to the plane of its orbit, its revolution would bring no change except in the appearance of the heavens at night, and would be... | |
 | Forest Ray Moulton - Astronomy - 1912 - 284 pages
...the solar days are longer than the sidereal because of the earth's motion forward in its orbit. If the axis of the earth were perpendicular to the plane of its orbit and if the earth moved forward in its orbit at a uniform speed, the differences between the sidereal... | |
 | Leon Orlando Wiswell - Geography - 1913 - 74 pages
...Temperate Zone. (Fig. 6.) An interesting discussion may be started by inquiring what the effect would be if the axis of the earth were perpendicular to the plane of its orbit. Would there be any change of seasons? The following diagram (Fig. 8) indicates the position in which... | |
 | Henry Neumann - Moral education - 1923 - 418 pages
...instance, restrain the natural impulse to kill one another. This might have been a very different world if the axis of the earth were perpendicular to the plane of its orbit instead of being inclined as it is. Who will say that it should have been perpendicular ? The fact... | |
 | Education - 1923 - 382 pages
...her domain, there is no question of what ought to be. This might have been a very different world if the axis of the earth were perpendicular to the plane of its orbit, instead of being inclined as it is. Who will say that it should have been perpendicular? The fact itself... | |
 | Education - 1852 - 576 pages
...usually drawn on a terrestrial artificial globe. 7. What circles on such a globe would be omitted if the axis of the earth were perpendicular to the plane of its orbit? 8. On what circles is longitude measured, an 1 why ? 9. On what circles is latitude measured, and why... | |
 | Nicholas Murray Butler, Frank Pierrepont Graves, William McAndrew - Education - 1923 - 380 pages
...her domain, there is no question of what ought to be. This might have been a very different world if the axis of the earth were perpendicular to the plane of its orbit, instead of being inclined as it is. Who will say that it should have been perpendicular? The fact itself... | |
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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.... 
