 | James Hodgson - 1723 - 724 頁
...min. 57 fee- and the Right Afcenfion 55 deg. 17 rain. 03 fec,¿¿ The Obliquity of the Ecliptic, or the Inclination of the Axis of the Earth to the Plane of the Ecliptic, is the Principal Poftulatum upon which all the Calculations and Conclusions relating to the... | |
 | John Keill - 1734 - 482 頁
...the Earths Axis, which is by far preferable to any other, efper. daily to the perpendicular pofition of the Axis of the Earth to the plane of the Ecliptick. 4/^-, The method the Theorift has found out to form the Antediluvian Rivers when there was no Sea to... | |
 | Benjamin Martin - 1747 - 574 頁
...Points E and P Fig. i. draw the great Circle EPA, meeting the Ecliptic AL in A ; the Arch PA mcafures the Inclination of 'the Axis of the Earth to the Plane of the Ecliptic, tax. the Angle PCH, which is found by Obfervation to be about 66° 30', and therefore ib... | |
 | William Nicholson - 1797 - 690 頁
...autumn, and all the variety of the fenfons, are produced by the fimple and admirable contrivance of the inclination of the axis of the earth to the plane of the ecliptic ; yet this mechanical difpofition would not have been alone fuffkient to produce that gradual... | |
 | Philip Doddridge - 1803 - 624 頁
...subject to diseases and death; besides those arising from the asperities of the surface of our globe, and the inclination of the axis of the earth to the plane of the ecliptic; they are most of them so evidently weak, and capable of being retorted as beauties rather... | |
 | George Gregory - 1808 - 322 頁
...placed on the other side of the equator from which he is retiring. It is easy, therefore, to see that it is the inclination of the axis of the earth to the plane of the ecliptic, and its constant parallelism, which occasion the change of the seasons. The sun being of... | |
 | Thomas Keith - 1811 - 388 頁
...and nights at the equator are always equal. Thus, the different seasons are clearly accounted for, by the inclination of the axis of the earth to the plane of its orbit,* combined with the parallel motion of that axis. CHAPTER V. Of the Origin of Springs and... | |
 | 1814 - 378 頁
...conclude, that the vicissitudes of the seasons, and the inequalities of day and night, are caused by the inclination of the axis of the earth to the plane of hs orbit. We, who have the happiness of being plated in a pleasant region of the temperate zone, can... | |
 | Thomas Keith - 1819 - 380 頁
...and nights at the equator are always equal. Thus the different seasons are clearly accounted for, by the inclination of the axis of the earth to the plane of its orbit,* •combined with the parallel motion of that axis. CHAP. V. Of the Origin of Springs and... | |
 | Malthe Conrad Bruun - 1822 - 696 頁
...such, the sphere would appear parallel. As the limits of the zones and of the climates depend upon the inclination of the axis of the earth to the plane of the ecliptic, it is of importance to determine this inclination. We may easily discover it by observing... | |
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The true cause of the variation of the seasons consists in the inclination of the axis of the earth to the plane of its orbit; or, in other words, to the ecliptic. 
