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jan 10 at 10:26Identification of extended quantum objects?
dec 23 at 9:49When does a pot not spill?
oct 31 at 4:53Are there cosmic rays in a nuclear reaction?
may 2 '12 at 12:19What is meant by the rest energy of non-composite particle?
mar 23 '12 at 15:28Is there any idea why the electric charges of electron and muon are equal?