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Home › What's on - "Memory Burns" › Tags › Tag: Proton

Tag: Proton

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The proton -- smaller than thought: Scientists measure charge radius of hydrogen nucleus and stum...

Science and Society: The Proton -- Smaller Than Thought

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Gifted submitted 2010/7/13 0:01, published 2010/7/13 0:01 | 485 views
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http://www.sciencedaily.com/releases/2010/07/100712103339.htm

Scientists Measure Charge Radius of Hydrogen Nucleus and Stumble Across Physics Mysteries

ScienceDaily (July 12, 2010) 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 difference between the new, smaller, dimension of the proton, the nucleus of the hydrogen atom, and the value which has been assumed so far. Instead of 0.8768 femtometres, it measures only 0.8418 femtometres.

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