The effect will be heightened if the eye is viewed in a dark room with a small hole in the shutter, but in every case the appearance will be very striking.
You can always detect the tiny but formidable foe by placing the bird in a dark room, and, after a few hours, holding a bright lamp close by the cage.
When sunlight enters a dark room through a small opening, the dust particles dancing in the sun show a straight ray.
If a beam of sunlight is admitted into a dark room through a narrow opening in the shade, and is allowed to fall upon a prism, as shown in Figure 86, a beautiful band of colors will appear on the opposite wall of the room.
Among the Serbians the need-fire is sometimes kindled by a boy and girl between eleven and fourteen years of age, who work stark naked in a dark room; sometimes it is made by an old man and an old woman also in the dark.
Usually the need-fire was made in the open air, but in some parts of Serbia it was kindled in a dark room; sometimes the place was a cross-way or a hollow in a road.
For three days she remains shut up in a dark room, and has to undergo certain penances.
The light of their trains was also of a paler hue, not unlike that produced by writing with a stick of phosphorus on the walls of a dark room.
Indeed, for delicate observations, the observer should remain for some time beforehand in a dark room, to let the pupil of the eye dilate.
And 'tis strange what women and children will conceive unto themselves, if they go over a churchyard in the night, lie, or be alone in a dark room, how they sweat and tremble on a sudden.
And this I have experimented in a dark Room, by illuminating those Bodies with uncompounded Light of divers Colours.
For those are Substances apt to reflect one sort of Light, and transmit another; as may be seen in a dark Room, by illuminating them with similar or uncompounded Light.
Nevertheless it is an eminently practical appliance, and is as well adapted to the factory as to the amateur's dark room.
Simple and efficient appliances for the dark room can be purchased very cheaply.
The blackest camphine smoke in a dark room, through which a sunbeam passes from an aperture in the window-shutter, renders the track of the beam white, by the light scattered from the surfaces of the soot particles.
Permitting a beam of white light to fall upon fresh leaves in a dark room, the sudden change from green to red, and from red back to green, when the violet glass is alternately introduced and withdrawn, is very surprising.
The rectilineal propagation of light may be illustrated by permitting the solar light to enter, through a small aperture in a window-shutter, a dark room in which a little smoke has been diffused.
People were much astonished when the chief of the ophthalmological service had the man isolated in a dark room.
On isolation in a dark room, the patient began to see light!
Thus an observer, whose eyes required some time to recover their tone, was long under the impression that rotten wood did not emit light at noon-day, even in a dark room.
The same may have happened to Doctor Wall, who, in the daytime, even in a dark room, could hardly perceive the electric light of amber.
That a nimbus of this kind is produced round the luminous image in the eye may be best seen in a dark room, if we look towards a moderately large opening in the window-shutter.
This image, together with all other objects of the external landscape, appears reversed on the white surface in question in a dark room.
A ray of light passing through an aperture into a dark room, proceeds in a straight line; a fact of which any one may be convinced by going into a darkened room and admitting light only through a small aperture.
When dried in a dark room, the paper is fit for use.
The paper should then be dried in a dark room, and, if required to be very sensitive, should a second time be brushed over with the nitrate of silver solution.
After a few seconds the light must be again shut off, and the camera removed into a dark room.
Malvolio into a dark room was, to make him believe that he was mad.
Place the coin thus prepared upon red-hot iron, remove it into a dark room, and the figure and inscription will become more luminous than the rest, and may be distinctly seen and read by the spectator.
Fifteen grains of nitrate of silver were next dissolved in half a drachm of water in a test tube, and the whole taken into the dark room, when the latter was added to the former slowly, stirring the mixture the whole time.
There is one great mistake which many people make of thinking of red as a cheerful color, and one which is good to use in a dark room.
The amount of wall space and the quality and the quantity of the light are important factors in deciding the color scheme because by using them correctly we can brighten a cheerless, dark room or soften the blaze in a too sunny one.
Tans should never come too close to brown for a dark room, for nothing is more dreary or hopeless than a room done in that depressing color.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "dark room" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
