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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... "
A New Treatise on the Use of the Globes; Or, A Philosophical View of the ... - Page 72
by Thomas Keith - 1821
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The Athenian Oracle: Being a Entire Collection of All the Valuable ..., Volume 3

John Dunton, Richard Sault, Samuel Wesley - Natural theology - 1728 - 604 pages
...according as theib Parallels are more or lefs remote from the Equator, the Angle comprehended by a Ray drawn from the Centre of the Sun to the Centre of the Earth, and by the Axis of the World, changes accordingly j for Infiance, the Sun being in the Equator, this...
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The Mathematical Principles of Natural Philosophy, Volume 2

Isaac Newton - Celestial mechanics - 1729 - 546 pages
...radius 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...
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The Accomplished Tutor: Or, Complete System of Liberal Education ...

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,...
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The Accomplished Tutor; Or, Complete System of Liberal Education ..., Volume 2

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,...
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The Youth's Companion: Or, An Historical Dictionary; Consisting of Articles ...

Ezra Sampson - Encyclopedias and dictionaries - 1807 - 506 pages
...Kepler was the first who discovered the great and universal law of the motion of planets ; namely, that a line drawn from the centre of the sun to the planet, and revolving with it, would always describe equal areas in equal times ; insomuch that, however...
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A New Treatise on the Use of the Globes, Or, A Philosophical View of the ...

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,...
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Astronomical and Geographical Essays: Containing a Full and Comprehensive ...

George Adams - Astronomy - 1812 - 552 pages
...the 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...
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Astronomical and geographical essays

George Adams - Astronomy - 1812 - 586 pages
...the 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...
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A Compendious Treatise on the Use of the Globes, and of Maps: Compiled from ...

John Lathrop - Astronomy - 1812 - 218 pages
...preserve the same angle with ab, 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,...
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The Youth's Companion: Or An Historical Dictionary; Consisting of Articles ...

Ezra Sampson - Encyclopedias and dictionaries - 1813 - 434 pages
...Kepler was the first who discovered the great and universal law of the motion of planets ; namely, that a line drawn from the centre of the sun to the planet, and revolving with it, would always describe equal areas in equal times ; insomuch that, however...
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