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 ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Radium bromide (RaBr2) is the bromide ...

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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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 ...

A 1909 issue of Popular Science Monthly contains a piece about how plants react to radium. Since radium emits gamma radiation, which kills cells and mutates DNA, they don’t generally respond well. So ...

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 ...