The Life of Sir Isaac NewtonJ. & J. Harper, 1832 - 323 páginas |
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Página 36
... force , bringing the violet rays to a focus nearer the glass than the red rays . This is shown in fig . 2 , where LL is a con- vex lens , and S , L , SL rays of the sun falling upon it S S- L Fig . 2 . M M E in parallel directions . The ...
... force , bringing the violet rays to a focus nearer the glass than the red rays . This is shown in fig . 2 , where LL is a con- vex lens , and S , L , SL rays of the sun falling upon it S S- L Fig . 2 . M M E in parallel directions . The ...
Página 61
... force of argument the various objections of his opponent , and maintained the truth of his doctrine of colours , as independent of the two hypotheses respecting the origin and production of light . He acknow- ledged his own partiality ...
... force of argument the various objections of his opponent , and maintained the truth of his doctrine of colours , as independent of the two hypotheses respecting the origin and production of light . He acknow- ledged his own partiality ...
Página 64
... force of an axiom . * Even the shortness of the spectrum observed by Lucas did not rouse him to further inquiry ; and when , under the influence of this blind conviction he pronounced the improve- ment of the refracting telescope to be ...
... force of an axiom . * Even the shortness of the spectrum observed by Lucas did not rouse him to further inquiry ; and when , under the influence of this blind conviction he pronounced the improve- ment of the refracting telescope to be ...
Página 79
... force . Sir Isaac has not ventured to inquire into the cause of this property ; but we may form a very intelligible ... force of the medium , and be re- fracted and transmitted ; but if the repulsive axis is in the direction of the ...
... force . Sir Isaac has not ventured to inquire into the cause of this property ; but we may form a very intelligible ... force of the medium , and be re- fracted and transmitted ; but if the repulsive axis is in the direction of the ...
Página 88
... forces to perform the same office . The reluctance with which he avails himself of this expedient is well marked in the mode of expression which he adopts ; and I am persuaded that when he wrote the above passage , he felt the full force ...
... forces to perform the same office . The reluctance with which he avails himself of this expedient is well marked in the mode of expression which he adopts ; and I am persuaded that when he wrote the above passage , he felt the full force ...
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Términos y frases comunes
Abbé Conti appear astronomical attraction Bentley Biot blue bodies calculus Cambridge centre colours Colsterworth comets Commercium consequence considered curves dated degree Descartes differential calculus discoveries distance doctrine earth edition experiment favour Flamstead force fringes Galileo genius glass gravity Gregory Halley heat Hipparchus honour Hooke Huygens infinite inquiries invention James Gregory John Newton Keill Kepler labours Leibnitz letter London manuscript mathematical ment method of fluxions mind moon motion nature never Newtonian philosophy observations Oldenburg opinion Optics orbit papers Pepys phenomena philosopher planets possession Principia principles prism produced published quadrature rays received reflecting telescope refraction refrangibility remarkable Royal Society scholium seems Sir Isaac Newton space spectrum speculum stars supposed surface theory thickness thin plates tion tonian transmitted Trinity College truth Tycho Tycho Brahe views violet Whiston white light Woolsthorpe yellow
Pasajes populares
Página 300 - I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me.
Página 251 - He gave this and the Prophecies of the Old Testament, not to gratify men's curiosities by enabling them to foreknow things, but that after they were fulfilled they might be interpreted by the event, and his own Providence, not the Interpreters, be then manifested thereby to the world.
Página 78 - ... that the ratio of the sines of the angles of incidence and refraction is constant for refraction in the same medium, was effected by Snell and Descartes.
Página 139 - I only hint at present to such as have ability and opportunity of prosecuting this inquiry, and are not wanting of industry for observing and calculating, wishing heartily such may be found, having myself many other things in hand, which I would first complete, and therefore cannot so well attend it. But this I...
Página 248 - For understanding the prophecies, we are, in the first place, to acquaint ourselves with the figurative language of the prophets. This language is taken from the analogy between the world natural and an empire or kingdom considered as a world politic.
Página 303 - he had a very lively and piercing eye, a comely and gracious aspect, with a fine head of hair as white as silver, without any baldness, and when his peruke was off was a venerable sight.
Página 149 - The third I now design to suppress. Philosophy is such an impertinently litigious lady, that a man had as good be engaged in lawsuits, as have to do with her.
Página 256 - WHEN I wrote my treatise about our system, I had an eye upon such principles as might work with considering men for the belief of a Deity ; and nothing can rejoice me more than to find it useful for that purpose.
Página 149 - I must again beg you," says he, "not to let your resentments run so high as to deprive us of your third book, wherein your applications of your mathematical doctrine to the theory of comets, and several curious experiments which, as I guess by what you write ought to compose it, will undoubtedly render it acceptable to those who will call themselves philosophers without mathematics, which are much the greater number.
Página 221 - I do not love to be printed upon every occasion, much less to be dunned and teased by foreigners about mathematical things, or to be thought by our own people to be trifling away my time about them, when I should be about the King's business.