Opticks:: Or, A Treatise of the Reflections, Refractions, Inflections and Colours of LightWilliam Innys at the West-End of St. Paul's., 1730 - 382 páginas |
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Página 85
... Density of the Light in any Place B , will be to its Density in N , as AB to BC ; and the whole Light with- in the lesser Circle BFG , will be to the whole Light within the greater AED , as the Excess of the Square of AC above the ...
... Density of the Light in any Place B , will be to its Density in N , as AB to BC ; and the whole Light with- in the lesser Circle BFG , will be to the whole Light within the greater AED , as the Excess of the Square of AC above the ...
Página 195
... density of the Plate , and not on that of the ambient Medium . And hence , by the 10th and 16th Observations , may be known the thickness which Bubbles of Water , or Plates of Muscovy Glass , or other substances , have at any Colour ...
... density of the Plate , and not on that of the ambient Medium . And hence , by the 10th and 16th Observations , may be known the thickness which Bubbles of Water , or Plates of Muscovy Glass , or other substances , have at any Colour ...
Página 220
... Density , the less Obliquity of Inci- dence is requisite to cause a total Reflexion . For as the Sines are which measure the Refra- ction , so is the Sine of Incidence at which the total Reflexion begins , to the Radius of the Circle ...
... Density , the less Obliquity of Inci- dence is requisite to cause a total Reflexion . For as the Sines are which measure the Refra- ction , so is the Sine of Incidence at which the total Reflexion begins , to the Radius of the Circle ...
Página 222
... density , is because all their conti- guous parts have one and the same degree of density . Prop . II . The least parts of almost all natural Bodies are in some measure transparent : And the Opa- city of those Bodies ariseth from the ...
... density , is because all their conti- guous parts have one and the same degree of density . Prop . II . The least parts of almost all natural Bodies are in some measure transparent : And the Opa- city of those Bodies ariseth from the ...
Página 223
... density seem to reflect almost all the Light incident on their first Superficies ; unless by solution in Menstru- ums they be reduced into very small Particles , and then they become transparent . Prop . III . Between the parts of opake ...
... density seem to reflect almost all the Light incident on their first Superficies ; unless by solution in Menstru- ums they be reduced into very small Particles , and then they become transparent . Prop . III . Between the parts of opake ...
Otras ediciones - Ver todo
Opticks: Or a Treatise of the Reflections, Refractions, Inflections and ... Isaac Newton Vista previa restringida - 2007 |
Opticks: Or, A Treatise of the Reflections, Refractions, Inflections ... Isaac Newton Vista de fragmentos - 1952 |
Términos y frases comunes
alfo alſo Angle Antimony appear Aqua fortis arife becauſe blue Bodies breadth caft caufed cauſe Circle colour'd compofed compounded confequence copiouſly Cryſtal dark defcribed denfity Diameter diftinct diſtance equal Experiment farther fecond feem fenfible feven feveral fhall fide firft firſt Fits of eafy fmall fome fometimes forts of Rays Fringes ftance fucceffively fuch fuppofe gible Glaffes Glafs Glaſs greateſt green hole Inch Inci increaſed indigo leaſt lefs Lens leſs Lines lours meaſured Medium Mixture moft moſt Motion muſt Numbers Obfervations oblique Opticks orange pafs Paper parallel Particles perpendicular Phænomena placed Plane Plates Pofition Prifm Priſm PROP Propofition Proportion Rays of Light reafon reflected Reflexion refrangible Rays reft reprefent ſeveral Shadow Sine of Incidence Sine of Refraction Spectrum Speculum Subftances Sun's Light Surface Teleſcopes thefe Colours theſe thickneſs thofe thofe Rays thoſe Tranfmiffion tranfmitted tranfparent unuſual violet Water whitenefs whofe yellow
Pasajes populares
Página 369 - ... the Instinct of Brutes and Insects, can be the effect of nothing else than the Wisdom and Skill of a powerful ever-living Agent, who being in all Places, is more able by his Will to move the Bodies within his boundless uniform Sensorium, and thereby to form and reform the Parts of the Universe, than we are by our Will to move the Parts of our own Bodies.
Página 367 - ... to derive two or three general principles of motion from phenomena, and afterwards to tell us how the properties and actions of all corporeal things follow from those manifest principles, would be a very great step in philosophy, though the causes of those principles were not yet discovered: and therefore I scruple not to propose the principles of motion above mentioned, they being of very general extent, and leave their causes to be found out.
Página 368 - And so must the Uniformity in the Bodies of Animals, they having generally a right and a left side shaped alike, and on either side of their Bodies two Legs behind, and either two Arms, or two Legs, or two Wings before upon their Shoulders, and between their Shoulders a Neck running down into a Back-bone, and a Head upon it; and in the Head two Ears, two Eyes, a Nose, a Mouth, and a Tongue, alike situated.
Página 362 - And thus nature will be very conformable to herself and very simple, performing all the great motions of the heavenly bodies by the attraction of gravity which intercedes those bodies and almost all the small ones of their particles by some other attractive and repelling powers which intercede the particles.
Página 371 - And if Natural Philosophy in all its parts, by pursuing this method, shall at length be perfected; the bounds of Moral Philosophy will be also enlarged. For so far as we can know by Natural Philosophy what is the First cause, what power He has over us, and what benefits we receive from Him; so far our duty towards Him, as well as that towards one another, will appear to us by the light of Nature.
Página 369 - Will; and he is no more the Soul of them, than the Soul of Man is the Soul of the Species of Things carried through the Organs of Sense into the place of its Sensation, where it perceives them by means of its immediate Presence, without the Intervention of any third thing.
Página 363 - The vis inertiae is a passive Principle by which Bodies persist in their Motion or Rest, receive Motion in proportion to the Force impressing it, and resist as much as they are resisted. By this Principle alone there never could have been any Motion in the World.
Página 343 - ... Salt and unites with it, and in Distillation the Spirit of the common Salt or Salt-petre comes over much easier than it would do before, and the acid part of the Spirit of Vitriol stays behind; does not this argue that the fix'd Alcaly of the Salt attracts the acid Spirit of the Vitriol more strongly than its own Spirit, and not being able to hold them both, lets go its own?
Página 368 - Now by the help of these Principles, all material Things seem to have been composed of the hard and solid Particles above-mentioned, variously associated in the first Creation by the Counsel of an intelligent Agent. For it became him who created them to set them in order.
Página 334 - What is there in places almost empty of matter, and whence is it that the sun and planets gravitate towards one another, without dense matter between them ? Whence is it that nature doth nothing in vain; and whence arises all that order and beauty which we see in the world?