Red light stop: The experiment uses multiple frequencies of light to cool the CaOH atoms to a fraction of a degree above absolute zero. (Courtesy: John Doyle) Physicists in the US have created ...
SENSITIVE ionization methods for the measurement of low gas and vapour concentration require the ionization of the test gas or vapour under conditions where an inert carrier gas is unionized. Such ...
IT has been generally admitted that, in the primary decomposition of a molecule by absorption of light, free atoms or unsaturated radicals are produced. In an extensive investigation upon the ...
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