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. Lead-wrapped glass bottle with a cork ...

Mrs. Josie Bishop is a small, bright, sun-browned widow with four grown children. Twenty years ago she moved to California’s Mojave Desert from New Mexico, arriving with “a can of beans, a loaf of ...

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.

In 1898, Marie Sklodowska Curie and Pierre Curie discovered radium while studying the radioactivity in pitchblende. They found that the mineral was still radioactive even after removing uranium from ...

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 ...

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