Big problems sometimes come in small packages. The problem with which physicists must now concern themselves measures a mere 0.0350 millionth of a millionth of a millimetre. This is precisely the ...
They have measured the helium nucleus with unprecedented precision: Aldo Antognini, Karsten Schuhmann and Franz Kottmann, here in the laboratory at PSI. (Picture: PSI/Markus Fischer) Helium is the ...
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