Image: Quark structure proton
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Original image (SVG file, nominally 525 × 525 pixels, file size: 16 KB)
Description: 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 "color charge" is thought of as circulating among the three quarks.
Title: Quark structure proton
Credit: Own work
Author: Arpad Horvath
Usage Terms: Creative Commons Attribution-Share Alike 2.5
License: CC BY-SA 2.5
License Link: http://creativecommons.org/licenses/by-sa/2.5
Attribution Required?: Yes
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