Word: ultraviolet
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...Bovie G. '13, professor of biophysics at the Medical School, acting in conjunction with President C. C. Little '10 of the University of Maine, demonstrated yesterday at the University of Maine laboratories that ultraviolet rays obtained by the use of a fused quartz mercury vapor arc lamp are beneficial to health. These two scientists have been conducting a series of experiments with chickens, and their findings reveal important medical properties of this light...
...feeding the world." The report of Dr. E. C. C. Baly contained a criticism. The butt was Nature-she takes too long to make sugar. He, the discoverer of synthetic sugar, has a receipt: Make a little formaldehyde out of carbon dioxide and water, expose it to intensely active ultraviolet light, and you have sugar. Genuine glucose has been made 'by this process, but before such can become a breakfast-table commodity the proper wavelength of the violet ray must be ascertained. It is roughly gauged at from 200 to 220 millimicrons.- If all the land were bread...
...Archimedes, who burned the Roman galleys in the seige of Syracuse by sun mirrors in the third Century B. C. Dr. Alfred N. Goldsmith, of the College of the City of New York, says that there are but five types of rays dangerous to life: X-rays, radium rays, ultraviolet rays, ordinary heat rays, and high-frequency or radio electrical fields, in the order of length. Between the ultraviolet and the heat rays is the visible spectrum of light rays. X-rays are harmless beyond a few hundred feet at most. There is not enough radium in the world...
...transmits all the rays of the sunlight, including the ultraviolet and infrared, which are cut out by ordinary glass. Owing to this property it is expected to be of great value to medicine. By it diseased areas of the throat, nose, ears, stomach, hitherto inaccessible cavities, may be subjected to the action of these germicidal rays, as well as to heat. A sun-room made of fused quartz panes would have the same effect as sunlight in the open air. A quartz lamp will give a healthy sunburn...
...spinthariscope, by which the "Brownian movement," or perpetual ac tivity of the molecules, can be seen. ¶ The formation of crystals under polarized light, showing how the world would look if we had the power of seeing by ultraviolet rays. ¶ Faraday's classic magnet apparatus side by side with the latest developments of radio. The visitor can control the exhaustion of a vacuum tube, and the beautiful effects of electrical discharge through the rarefield gas. ¶ The famous dinosaur eggs discovered by the third Asiatic expedition of the American Museum of Natural History...