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Science » Physical Sciences » Physics

CERN, the World's Largest Particle Accelerator

features scientists and machines that explore the universe's tiniest particles. Follow a proton through the accelerator. Meet scientists at CERN. Hear why they search for the secrets of matter. Learn about the antimatter, the Big Bang, and other "big ideas" behind experiments at CERN. (National Science Foundation)

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Model of a Helium Atom

Building blocks of matter


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