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  1. What's In a Proton?

    Wednesday, July 8, 2009 | Presented by Peter Steinberg | 5:13

    Physicist Peter Steinberg explains that fundamental particles like protons are themselves made up of still smaller particles called quarks. He discusses how new particles are produced when quarks are liberated from protons...a process that can be observed in Brookhaven Lab's Relativistic Heavy Ion Collider (RHIC).

    Video Tags: physics RHIC

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