White light sentence examples

white light
  • Roving searchlights splashed the Undersecretary with brilliant white light.

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  • high, with a revolving white light visible 18 m.

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  • The phenomenon is due to very fine particles of dust suspended in the high regions of the atmosphere that produce a scattering effect upon the component parts of white light.

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  • temperatures radiates out a most brilliant white light.

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  • In another respect the observations of Fraunhofer appear at first sight to be in disaccord with theory; for his measures of the diameters of the red rings, visible when white light was employed, correspond with the law applicable to dark rings, and not to the different law applicable to the luminous maxima.

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  • However this may be, it would always be possible, with the aid of a grating of given resolving power, to construct artificially from white light mixtures of slightly different wave-length whose resolution or otherwise would discriminate between powers inferior and superior to the given one.3 2 Compare also F.

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  • By the Lights on Vehicles Act 1907, all vehicles on highways in England and Wales must display to the front a white light during the period between one hour after sunset and one hour before sunrise.

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  • In sound sensation we have nothing corresponding to white light.

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  • Thus, if a ray of white light AO (fig.

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  • Christiansen found, in an investigation of this kind, that the refractivity of the liquid could only be got to match that of the powder for mono-chromatic light, and that, if white light were used, brilliant colour effects were obtained, which varied in a remarkable manner when small changes occurred in the refractive index of the liquid.

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  • If the refractive index is, for instance, the same for both in the case of green light, and a source of white light is viewed through the mixture, the green component will be completely transmitted, while the other colours are more or less scattered by multiple reflections and refractions at the surfaces of the powdered substance.

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  • Wood, when white light is transmitted through a paste made of powdered quartz and a mixture of carbon bisulphide with benzol having the same refractive index as the quartz for yellow light.

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  • Neville), and boils at about lioo C. Magnesium and its salts are diamagnetic. It burns brilliantly when heated in air or oxygen, or even in carbon dioxide, emitting a brilliant white light and leaving a residue of magnesia, MgO.

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  • If white light is allowed to fall on some coloured solutions, the transmitted light is of one colour when the thickness of the solution is small, and of quite another colour if the thickness is great.

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  • That is to say, they stop out just those sections of white light transmitted through them which form their own special luminous badges.

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  • Moreover, if the white light come from a source at a higher temperature than theirs, the sections, or lines, absorbed by them show dark against a continuous background.

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  • Arago in 1811 found that in the case of white light and with moderately thin plates the transmitted light is no longer white but coloured, a variation of brightness but not of tint being produced when the polarizer and analyser being crossed are rotated together, while the rotation of the analyser alone produces a change of colour, which passes through white into the complementary tint.

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  • When the retardation of phase for light of mean period is it or a small multiple of it a crystalline plate placed between a crossed polarizer and analyser exhibits in white light a distinctive greyish violet colour, known as a sensitive tint from the fact that it changes rapidly to blue or red, when the retardation is very slightly increased or diminished.

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  • When white light is employed coloured rings are obtained, provided the relative retardation of the interfering streams be not too great.

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  • If in the interference experiment with Fresnel's mirrors or biprism the slit be illuminated with white light that has passed through a polarizer and a quartz plate cut perpendicularly to the optic axis, it is found on analysing the light that in addition to the ordinary central set of coloured fringes two lateral systems are seen, one on either side of it.

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  • Righi has, however, pointed out that this experiment may be explained by the fact that the function of the quartz plate and analyser is to eliminate the constituents of the composite stream of white light that mask the interference actually occurring at the positions of the lateral systems of fringes, and that any other method of removing them is equally effective.

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  • If then a stream of polarized white light traverse the biquartz, it is possible by an analyser to cut off the mean yellow light from each half of the field, and the whole will then have the sensitive tint; but a small change in the plane of analysation will give the one half a red and the other half a blue tone.

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  • If microscopic preparations are observed by diffused daylight or by the more or less white light of the usual artificial sources, then an objective of fixed numerical aperture will only represent details of a definite fineness.

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  • To this end luminaries should have full horizontal cut off using a white light source to improve visual acuity.

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  • amorphous blob of white light called Rover.

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  • A large amorphous blob of white light called Rover.

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  • They come in two basic flavors: METAL HALIDES or MH lamps emit a white light that looks slightly bluish.

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  • The LED gave off a truly brilliant white light!

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  • A white light corona is the sum of all the coronae contributions from each spectral color.

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  • The letter crumpled in her hands, her vision blurred then tunneled to a narrow point of white light.

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  • halide lamp gives a lot of white light at the best ratio of power input to light output.

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  • heave surface of any star is a continously heaving mass of burning gases, not a neat pinpoint of pure white light.

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  • H Describe how white light can be dispersed by a triangular prism.

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  • The colored rays of light entered this second prism and a single ray of white light emerged.

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  • prism binoculars have integral white light filters making solar observations safe.

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  • The color of light A glass prism will split white light into a spectrum of colors.

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  • street lamps emitting white light are now being introduced in a few areas.

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  • Not only is the oblique direction of maximum polarization more definite and the polarization itself more complete, but the observation is easier than with white light in consequence of the uniformity in the colour of the light scattered in various directions.

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  • Descartes, however, could advance no satisfactory explanation of the chromatic displays; this was effected by Sir Isaac Newton, who, having explained how white light is composed of rays possessing all degrees of refrangibility, was enabled to demonstrate that the order of the colours was in perfect accord with the requirements of theory (see Newton's Opticks, book i.

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  • And it is all so simple, pale, and crude in the cold white light of this morning which I feel is dawning for me.

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  • Illuminated with unique white light technology, display and navigation are clear and clever, with a dedicated stopwatch control.

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  • New street lamps emitting white light are now being introduced in a few areas.

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  • Black lights give white light a purple color.

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  • Halogen light bulbs produce a bright, white light that doesn't diminish over time the way traditional light bulbs do.

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  • Once the grenade is within a decent blast radius of the opponent, its ribcage light then turns red and blasts them with a blinding white light that sends the opponent falling down rag doll physics style.

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  • Others find that imagining a white light hovering over the painful area can actually lessen the pain for brief periods.

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  • When he's not busy rocking on stage with the band, White Light Motorcade, he's behind the scene in this unique salon, sharing his passion for artistic cuts.

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  • While it has almost become a cliché, most NDErs report traveling very quickly through a tunnel or cave with brilliant white light at the opposite end.

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  • The passage through the tunnel is fast and when you emerge at the count of three, you're surrounded by brilliant white light.

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  • Still, another popular technique is to ride an elevator down further and further; when the elevator stops and the doors open, you emerge into the world of white light.

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