 | 1704 - 592 pages
...remote from the Equator, the Angle comprehended by a Ray úrawn from the Center of the Sun to the Center of the Earth, and by the Axis of the World, changes accordingly : for Inftance, the Sun being in the £ quator, this Angle is right, but if it is in the Topic of dancer... | |
 | Isaac Newton - Celestial mechanics - 1729 - 546 pages
...CP, we fuppofe the fphere P ape to be defended, and QJR. to denote the plane on which a right line, drawn from the centre of the Sun to the centre of the Earth, injijls at right angles, and farther fuppofe, that the fever al particles of the whole exterior Earth... | |
 | Thomas Hodson - Education - 1802 - 556 pages
...he further difcovered thefe two primary laws, from hence called Kepler 'i Laws: viz. that a radius drawn from the centre of the Sun to the centre of the planet, ahvays defcribes equal areas in equal times ; or, which is the lame thing, in unequal terms,... | |
 | Thomas Hodson - Arithmetic - 1806 - 488 pages
...thefe two VOL. ii- a D primary primary laws, from hence called Kef lei's Laws : viz. that a radius drawn from the centre of the Sun to the centre of the planet, always defcribes equal areas in equal times ; or, which is the fame thing, in unequal terms,... | |
 | Thomas Keith - Astronomy - 1811 - 388 pages
...preserve the same angle with ah, it will point out the seasons of the year; for, suppose a line to be drawn from the centre of the sun to the centre of the earth, it is evident that the sun will be vertical to that part of the earth which is cut by this line. Now,... | |
 | John Lathrop - Astronomy - 1812 - 218 pages
...motion is regulated by a certain immutable law, from which it never deviates ; which is, that a line drawn from the centre of the sun to the centre of the earth, being carried about with an angular motion, describes an elliptical area, proportional to the time... | |
 | George Adams - Astronomy - 1812 - 552 pages
...dark side, and is the boundary between light and darkness, is generally called the terminator. A line drawn from the centre of the sun to the centre of the earth, is perpendicular to the plane of this circle. It is plain that, when any given place on the globe first... | |
 | George Adams - Astronomy - 1812 - 586 pages
...dark side, and is the boundary between light and darkness, is generally called the terminator. A line drawn from the centre of the sun to the centre of the earth, is perpendicular to the plane of this circle. ' It is plain that, when any given place on the globe... | |
 | John Playfair - Astronomy - 1814 - 392 pages
...Temperate Zones, are those contained between the Torrid and Frigid Zones. 84. If a straight line be drawn from the centre of the sun to the centre of the earth, a great circle on the earth's surface, perpendicular to this line, will separate the enlightened hemisphere... | |
 | Charles Hutton - Astronomy - 1815 - 686 pages
...having the sun in one of its foci ; and that they all move in these ellipses by this law, that a radius drawn from the centre of the sun to the centre of the planet, always describes equal areas in equal times ; or, which is the same thing, in unequal times,... | |
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In this case, it is obvious that the plane of the circle of illumination would be perpendicular to a line drawn from the centre of the sun to the centre of the earth... 
