The Life of Sir Isaac NewtonHarper & Brothers, 1831 - 323 páginas |
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Página 21
... surface of a floor , and not fitted to overcome the inequalities of a road . Although * " I remember once , " says Dr. Stukely , " when I was deputy to Dr. Halley , secretary at the Royal Society , Sir Isaac talked of these kind of ...
... surface of a floor , and not fitted to overcome the inequalities of a road . Although * " I remember once , " says Dr. Stukely , " when I was deputy to Dr. Halley , secretary at the Royal Society , Sir Isaac talked of these kind of ...
Página 31
... surface a parabolic , an elliptical , or a hyperbolic form , or some other form not spher- ical . Descartes had even invented and described machines by which lenses of these shapes could be ground and polished , and the perfection of ...
... surface a parabolic , an elliptical , or a hyperbolic form , or some other form not spher- ical . Descartes had even invented and described machines by which lenses of these shapes could be ground and polished , and the perfection of ...
Página 37
... surface makes the rays deviate five or six times more from their true path than similar irregu larities in a refracting surface , a much greater de- gree of nicety would be required in figuring reflect- ing specula than refracting ...
... surface makes the rays deviate five or six times more from their true path than similar irregu larities in a refracting surface , a much greater de- gree of nicety would be required in figuring reflect- ing specula than refracting ...
Página 42
... surfaces ; and several of them when finished turned out useless , in consequence of the veins which then appeared in the glass . Although these instruments performed remarkably well , yet the light was fainter than he expected , and ...
... surfaces ; and several of them when finished turned out useless , in consequence of the veins which then appeared in the glass . Although these instruments performed remarkably well , yet the light was fainter than he expected , and ...
Página 51
... surface of the steel filings , and so moved over the mass , that at the end nearest to them the heaviest or coarsest will be attracted , and all the remotest and the finest or lighter filings , while the rest are at- tracted to ...
... surface of the steel filings , and so moved over the mass , that at the end nearest to them the heaviest or coarsest will be attracted , and all the remotest and the finest or lighter filings , while the rest are at- tracted to ...
Términos y frases comunes
Abbé Conti appear astronomical attraction Bentley Biot blue bodies calculus Cambridge cause centre colours Colsterworth comets Commercium consequence considered curves dated degree Descartes differential calculus discoveries distance doctrine earth edition experiment Flamstead force fringes Galileo genius glass gravity 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 particles of light Pepys phenomena philosopher planets possession Principia principles prism produced published quadrature rays received reflecting telescope refrangibility remarkable Royal Society scholium seems Sir Isaac Newton space spectrum speculum stars supposed surface theory thickness thin plates thought tion tonian transmitted Trinity College truth Tycho Tycho Brahe views violet Whiston white light Woolsthorpe yellow
Pasajes populares
Página 298 - 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 249 - 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 301 - Bishop Atterbury asserts, on the other hand, that the lively and piercing eye did not belong to Sir Isaac during the last twenty years of his life. " Indeed," says he, " in the whole air of his face and make there was nothing of that penetrating sagacity which appears in his compositions. He had something rather languid in his look and manner, which did not raise any great expectation in those who did not know him.
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 215 - I could not have believed what you tell me of yourself, had I had it from any body else. And though I cannot but be mightily troubled that you should have had so many wrong and unjust thoughts of me, yet next to the return of good offices, such as from a sincere good will I have ever done you, I receive your acknowledgment of the contrary as the kindest...
Página 301 - 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 209 - I never designed to get any thing by your interest, nor by King James's favour, but am now sensible that I must withdraw from your acquaintance, and see neither you nor the rest of my friends any more, if I may but leave them quietly. I beg your pardon for saying I would see you again, and rest your most humble and most obedient servant,
Página 244 - Apoc. xii. for both are to rule the nations with a rod of iron ; but whence are you certain that the Ancient of Days is Christ? Does Christ anywhere sit upon the throne? If Sir Francis Masham be at Gates, present, I pray, my service to him with his lady, Mrs. Cudworth, and Mrs. Masham. Dr. Covel is not in Cambridge. " I am Your affectionate and humble servant, Is. NEWTON. " Know you the meaning of Dan. x, 21: There is none that holdeth with me in these things but Mich, your Prince...
Página 254 - 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 246 - 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.