Unity of Purpose, Or Rational Analysis: Being a Treatise Designed to Disclose Physical Truths, and to Detect and Expose Popular ErrorsS.N. Dickinson & Company, 1846 - 292 pages |
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Common terms and phrases
a p of half allegation amount of force aphelion assumed at unity astronomy cause centre of gravity centripetal force circumference coincide commencing its fall conceive consequently cube deduced deflection denoted diameter distance 60 earth eccentric orbit ellipse equal equation error falling bodies force and motion force applied force expended force of gravity given space gravity is inversely half the sides half the square hence hypothesis Kepler law of falling law of gravity magnetic mean distance mean motion mean place moon moon's Newtonian law nutation observations odd numbers perihelion period phenomena planet revolving poles prime circle proportion quadrature quantities radius rate of convergency rate of force rate of gravity rate of motion rate or intensity reciprocal respect satellite Sir Isaac Newton solar system space passed square root star supposed surface tance tangent third power tides tion truth twice the sides unit of space varies inversely velocity Vince whole amount
Popular passages
Page 218 - The squares of the periods of revolution of any two planets are proportional to the cubes of their mean distances from the sun.
Page 267 - I then endeavoured to find out the cause of them. I was already convinced, that the apparent motion of the stars was not owing to a nutation of the earth's axis. The next thing that offered itself was an alteration in the direction of the plumb-line with which the instrument was constantly rectified...
Page 267 - At last I conjectured that all the phenomena, hitherto mentioned, proceeded from the progressive motion of light and the earth's annual motion in its orbit. For I perceived that, if light was propagated in time, the apparent place of a fixed object would not be the same when the eye is at rest, as when it is moving in any other direction than that of the line passing through the eye and object; and that when the eye is moving in different directions, the apparent place...
Page 26 - And I looked, and there was none to help; And I wondered that there was none to uphold : Therefore mine own arm brought salvation unto me; And my fury, it upheld me.
Page 248 - XIT. 22 we have said with respect to the moon's influence in disturbing the level of the ocean, may be applied also to that of the sun; only, in the case of the sun, although its absolute action is about double that of the moon, yet, on account of its very great distance...
Page 265 - December, to the same situation it was in at that time twelve months, allowing for the difference of declination on account of the precession of the equinox. " This was a sufficient proof that...
Page 181 - D'Alembert, was the Precession of the equinoxes and the Nutation of the earth's axis, according to the theory of gravitation.
Page 269 - For I perceived that, if Light was propagated in Time, the apparent Place of a fixed Object would not be the same when ' the Eye is at Rest, as when it is moving in any other Direction, than that of the Line passing through the Eye and the Object ; and that, when the Eye is moving in different Directions, the apparent Place of the Object would be different.
Page 131 - I am verily a man which am a Jew, born in Tarsus, a city in Cilicia, yet brought up in this city at the feet of Gamaliel, and taught according to the perfect manner of the law of the fathers, and was zealous toward God, as ye all are this day.
Page 265 - This was a sufficient Proof, that the Instrument had not been the Cause of this apparent Motion of the Star, and to find one adequate to such an Effect seemed a Difficulty. A Nutation of the Earth's Axis was one of the first things that offered itself upon this Occasion, but it was soon found to be insufficient; for though it might have accounted for the change of Declination in...