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File:Quark structure proton.svg


English: The quark structure of the proton. There are two up quarks in it and one down quark. The strong force is mediated by gluons (wavey). The strong force has three types of charges, the so-called red, green and the blue. Note that the choice of green for the down quark is arbitrary; the "colour charge" is thought of as circulating among the three quarks.
Date 16 March 2006 (original upload date)
Source Made by Arpad Horvath
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Author Made by Arpad Horvath


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