Scientists Weigh Smallest Mass Ever
PaSTE writes "From the article, 'US scientists have managed to measure the mass of a cluster of xenon atoms at just a few billionths of a trillionth of a gram - or a few zeptograms. The record measurement is in the mass range of individual protein molecules, and the detection was made using sensitive scales developed at Caltech.' Another big leap forward for nanotechnology."
DUPE
Is it still April Fools?
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If they could take the cylinder they have now and weigh with enough precision, Avogadro's number would be known and the kilogram would no longer be tied to a physical object.
Transcend Humanity. Please.
What does directly mean? With a beam balance?