IT is known that salt (NaCl) at a temperature of 200° C. is phosphorescent (vide Phipson on “Phosphorescence,” p. 20); during a course of experiments in June last I found that radium bromide induces ...

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CONTINUING the experiments of one of us on the action of radium bromide on plants, we have experimented on various bacteria. We find that, in the case of Bacillus pyocyaneus, B. typhosus, B.

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Read at the Annual Meeting of the Boston Society for Medical Improvement, Jan. 18, 1904. Lantern projections were shown of a frog taken by the Beta and Gamma rays together, by the Gamma rays alone and ...

Hydraulic fracturing, or fracking, extracts oil and gas from deep underground by injecting water into the ground and breaking the rocks in which the valuable hydrocarbons are trapped. But it also ...

TimesMachine is an exclusive benefit for home delivery and digital subscribers. About the Archive This is a digitized version of an article from The Times’s print archive, before the start of online ...