A fermion is any particle that has an odd half-integer (like 1/2, 3/2, and so forth) spin. Quarks and leptons, as well as most composite particles, like protons and neutrons, are fermions.

Added 4/8/2013 4:17:22 AM

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HIGGS BOSON : a hypothetical elementary particle that has zero spin and large mass and that is required by some gauge theories to account for the masses of other elementary particles.

Added 4/8/2013 4:41:33 AM

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There are two mathematicians who can be credited with having invented calculus: Sir Isaac Newton, England and Gottfried Wilhelm Leibniz, Germany. A controversy arose when Leibniz published his papers. Newton and other English mathematicians alleged that Leibniz had stolen Newton’s ideas. It was found out later that Leibniz had developed calculus on its own and made his findings public before Newton. Historians credit both mathematicians as the inventors of calculus. Read more

Added 4/8/2013 4:52:33 AM

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