Old paper banknotes potentially worth hundreds of pounds could be lurking in your wallet. Paper £5, £10, £20 and £50 notes are no longer legal tender after being withdrawn and replaced with polymer ...
IN 1940, we prepared the isotope of mass 211 of element 85 by bombarding bismuth with alpha particles accelerated in the 60-in. cyclotron of the Radiation Laboratory of the University of California 1.
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