E=mc² is Incomplete

<p>Jan 27, 2015 09:42 PM</p>

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stunning. &nbsp;in < 2 minutes.</p>

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E2 = (mc2)2 &nbsp;+ &nbsp;(pc)2 &nbsp;a right triangle.</p>

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if rest mass zero, &nbsp;object is like light &nbsp;(all the energy is in the momentum); &nbsp;like aphoton.</p>