IN the Philosophical Magazine for April, 1903, Runge and Precht work out the atomic weight of radium from its spectrum to be 258, instead of the 225 found by Madame Curie. I should like to point out ...
A team of researchers in the US say they have optically trapped radium for the first time. Researchers in the US have come up with just the right optical set-up to laser cool and trap radium atoms in ...
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