The Life of Sir Isaac NewtonJ. & J. Harper, 1832 - 323 páginas |
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Página 51
... means of seven sieves of different degrees of fineness , and so made that the finest will just transmit the finest powder and detain all the rest , while the next in fineness transmits the two finest powders and detains all the rest ...
... means of seven sieves of different degrees of fineness , and so made that the finest will just transmit the finest powder and detain all the rest , while the next in fineness transmits the two finest powders and detains all the rest ...
Página 64
... mean rays was the same . This opinion , unsupported by experiments , and not even sanctioned by any theoretical views , seems to have been impressed upon his mind with all the force of an axiom . * Even the shortness of the spectrum ...
... mean rays was the same . This opinion , unsupported by experiments , and not even sanctioned by any theoretical views , seems to have been impressed upon his mind with all the force of an axiom . * Even the shortness of the spectrum ...
Página 67
... mean ray was the same , yet by a more mi- nute examination of the best instruments , it was found that they exhibited white or luminous objects tinged on one side with a green fringe , and on the other with one of a claret colour ...
... mean ray was the same , yet by a more mi- nute examination of the best instruments , it was found that they exhibited white or luminous objects tinged on one side with a green fringe , and on the other with one of a claret colour ...
Página 73
... . Wollaston , but nearly 600 have been detected by means of the fine prisms and the magnificent appa- ratus of the Bavarian optician . These lines are G parallel to one another , and perpendicular to the length LINES IN THE SPECTRUM . 73.
... . Wollaston , but nearly 600 have been detected by means of the fine prisms and the magnificent appa- ratus of the Bavarian optician . These lines are G parallel to one another , and perpendicular to the length LINES IN THE SPECTRUM . 73.
Página 81
... means of the theory of fits ; but it would lead us beyond the limits of a popular work like this to enter into any details of his observations , or to give an account of the numerous and important additions which this branch of optics ...
... means of the theory of fits ; but it would lead us beyond the limits of a popular work like this to enter into any details of his observations , or to give an account of the numerous and important additions which this branch of optics ...
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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.