THIS DAY IN SCIENCE: Le Griffon - 1st Ship Built on The Great Lakes in 1678

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What is a photon?

What is a photon?

A photon is a purely quantum mechanical object representing the smallest piece of energy (or quanta) for light. Every quantum particle is a packet of energy though, so how do we tell photons apart from electrons, quarks, and neutrinos? Click here to go the source for...
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