Physics
Physicists resolve a long-standing puzzle over the size of a proton
Two extremely precise experiments agree with a previously shocking measurement of just how big the proton is, which may help future searches for new particles
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Two extremely precise experiments agree with a previously shocking measurement of just how big the proton is, which may help future searches for new particles
In 1992, three physicists began an argument about how many numbers we need to fully describe the universe. Their surprisingly long-running quarrel takes us to the heart of what鈥檚 truly real