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Updated: June 16, 2025
On entering the room, in which two lamps with reflectors were burning, one lighting up his father's and the other his mother's portrait, he remembered what his last relations with his mother had been. And they also seemed shameful and horrid. He remembered how, during the latter period of her illness, he had simply wished her to die.
Dr. Brewster readily admitted that a tube was not necessary, provided the focal image were conveyed into a dark apartment and there properly received by reflectors.... The conversation then became directed to that all-invincible enemy, the paucity of light in powerful magnifiers.
But even under this hypothesis, I cannot help thinking the ancients had some other means of catching the light and diffusing it in their apartments, in some such manner as the Chappuis' reflectors we now use, though no certain evidence is yet forthcoming that they did so.
By this arrangement each lens transmits to all the points of the horizon in succession a light equivalent to that of from three to four thousand lamps with double currents, and eight times greater than the light produced by the silver parabolic reflectors; it is, according to Arago, the same amount of light as would be obtained if it were possible to bring together the third of the whole number of gas-lights which illumine the streets, the shops, and the theatres of Paris; and this wonderful result is obtained from a single lamp.
The reflectors in general use measure over the tips twenty-one inches as applicable to stationary, and twenty-live inches for revolving lights. The Catoptric or reflecting system was first adopted under the direction of Borda, at the Corduan Lighthouse, probably about the year 1780.
In this noblest of all ages the Sun of grace and loving-kindness has shone out from the divine day-spring with such resplendent glory and is casting His beams so bright and far, that He has lit up all the earth and made the hearts and minds of men to be as sanctified mirrors and reflectors of holiness—this to such a degree that from turning their faces unto that bright Orb, that Star of the loftiest heaven, those illumined beings have received abundant grace and have been enabled to understand the secret of God’s oneness, and the mystery of His unity, and to become alert to subtle realities.
Further on, the darkness was cut by silhouettes of ebony that sometimes were boats and at others, alleyways of packages or hills of coal. The black water reflected the red and green serpents from the lights on the boats. A transatlantic liner was prolonging its loading operations by the light of its electric reflectors, standing forth out of the darkness with the gayety of a Venetian fiesta.
"And," continued Sir John, "why cannot the illuminating microscope, say the hydro-oxygen, be applied to render distinct, and, if necessary, even to magnify, the focal object?" The only apparent desideratum was a recipient for the focal image which should transfer it, without refranging it, to the surface on which it was to be viewed under the revivifying light of the microscopic reflectors.
Throw away this solution and use some fresh water without potash and rather tepid; change it several times until it remains quite limpid. Then gently stretch the skin to dry in an airy shaded place. When thoroughly dried, rub it well between the hands. It thus becomes very pliant and velvet-like. Reflectors for Taking Views.
Mrs. Draper has decided to send to Cambridge a 28 inch reflector and its mountings, and a 15 inch mirror, which is one of the most perfect reflectors constructed by Dr. Draper, and with which his photograph of the moon was taken. The first two instruments mentioned above have been kept at work during the first part of every clear night for several months.
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