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Keyword: qedtheory

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  • New experiments challenge fundamental understanding of electromagnetism

    12/03/2012 2:29:16 PM PST · by neverdem · 45 replies
    Phys.org ^ | November 28, 2012 | NA
    A cornerstone of physics may require a rethink if findings at the National Institute of Standards and Technology (NIST) are confirmed. Recent experiments suggest that the most rigorous predictions based on the fundamental theory of electromagnetism—one of the four fundamental forces in the universe, and harnessed in all electronic devices—may not accurately account for the behavior of atoms in exotic, highly charged states. The theory in question is known as quantum electrodynamics, or QED, which physicists have held in high regard for decades because of its excellent track record describing electromagnetism's effects on matter. In particular, QED has been especially...