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Apple QuickTime movie  |  1995-04-03  |  3.0 MB  |  280x280  |  15fps  |  26 seconds
Transcription: A proton and a neutron are made of three quarks, one is called the pharbe. A proton is two up quarks and one down quark. A neutron is two down quarks and one up quark. We can tell here that the other quarks are strange, sharp, bottom and top. But they have a very large mass and are made of protons and neutrons.