Sir Isaac Newton
Mathematician and natural philosopher, 1643-1727
Cited as Sir I. Newton. — 62 quotations
Assimilate
Hence also animals and vegetables may assimilate their nourishment.
Bring
In distillation, the water . . . brings over with it some part of the oil of vitriol.
Color
The rays, to speak properly, are not colored; in them there is nothing else than a certain power and disposition to stir up a sensation of this or that color.
Commix
The commixed impressions of all the colors do stir up and beget a sensation of white.
Compact
Glass, crystal, gems, and other compact bodies.
Component
The component parts of natural bodies.
Composition
The investigation of difficult things by the method of analysis ought ever to precede the method of composition.
Concentric
Concentric circles upon the surface of the water.
Concourse
The drop will begin to move toward the concourse of the glasses.
Contiguous
The two halves of the paper did not appear fully divided . . . but seemed contiguous at one of their angles.
Contrition
The breaking of their parts into less parts by contrition.
Convene
In shortsighted men . . . the rays converge and convene in the eyes before they come at the bottom.
Cross
The cross refraction of the second prism.
Curl
If the glass of the prisms . . . be without those numberless waves or curls which usually arise from the sand holes.
Define
Rings . . . very distinct and well defined.
Difform
The unequal refractions of difform rays.
Dilute
Lest these colors should be diluted and weakened by the mixture of any adventitious light.
Discontinuation
Upon any discontinuation of parts, made either by bubbles or by shaking the glass, the whole mercury falls.
Dissolvable
Such things as are not dissolvable by the moisture of the tongue.
Distance
Every particle attracts every other with a force . . . inversely proportioned to the square of the distance.
Emergence
The white color of all refracted light, at its very first emergence . . . is compounded of various colors.
Fissile
This crystal is a pellucid, fissile stone.
Globule
Globules of snow.
Gray
These gray and dun colors may be also produced by mixing whites and blacks.
Gyration
If a burning coal be nimbly moved round in a circle, with gyrations continually repeated, the whole circle will appear like fire.
Impinge
The cause of reflection is not the impinging of light on the solid or impervious parts of bodies.
Incidence
In equal incidences there is a considerable inequality of refractions.
Incrassate
Acids dissolve or attenuate; alkalies precipitate or incrassate.
Indistinctly
In its sides it was bounded distinctly, but on its ends confusedly and indistinctly.
Inflect
Are they [the rays of the sun] not reflected, refracted, and inflected by one and the same principle ?
Influence
These experiments succeed after the same manner in vacuo as in the open air, and therefore are not influenced by the weight or pressure of the atmosphere.
Ingredient
By way of analysis we may proceed from compounds to ingredients.
Intend
Magnetism may be intended and remitted.
Lap
About the paper . . . I lapped several times a slender thread of very black silk.
Lively
The colors of the prism are manifestly more full, intense, and lively that those of natural bodies.
Lucid
Lucid, like a glowworm.
Magnitude
Conceive those particles of bodies to be so disposed amongst themselves, that the intervals of empty spaces between them may be equal in magnitude to them all.
Manage
Long tubes are cumbersome, and scarce to be easily managed.
Mass
If it were not for these principles, the bodies of the earth, planets, comets, sun, and all things in them, would grow cold and freeze, and become inactive masses.
Notion
What hath been generally agreed on, I content myself to assume under the notion of principles.
Office
In this experiment the several intervals of the teeth of the comb do the office of so many prisms.
Outward
Light falling on them is not reflected outwards.
Patient
Whatever I have done is due to patient thought.
Polish
Another prism of clearer glass and better polish.
Polite
Rays of light falling on a polite surface.
Query
I shall conclude with proposing only some queries, in order to a . . . search to be made by others.
Rare
Water is nineteen times lighter, and by consequence nineteen times rarer, than gold.
Rebound
Bodies which are absolutely hard, or so soft as to be void of elasticity, will not rebound from one another.
Refraction
Refraction out of the rarer medium into the denser, is made towards the perpendicular.
Reproduce
Those colors are unchangeable, and whenever all those rays with those their colors are mixed again they reproduce the same white light as before.
Sesquiplicate
The periodic times of the planets are in the sesquiplicate ratio of their mean distances.
Sideways
A second refraction made sideways.
Sort
Rays which differ in refrangibility may be parted and sorted from one another.
Step
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.
Stifle
Bodies . . . stifle in themselves the rays which they do not reflect or transmit.
Stop
Occult qualities put a stop to the improvement of natural philosophy.
Successively
The whiteness, at length, changed successively into blue, indigo, and violet.
Swelling
The superficies of such plates are not even, but have many cavities and swellings.
Twinkle
These stars do not twinkle when viewed through telescopes that have large apertures.
Variety
The variety of colors depends upon the composition of light.
Vein
Let the glass of the prisms be free from veins.
Volatilize
The water . . . dissolving the oil, and volatilizing it by the action.