(Phys.org) —Quantum electrodynamics (QED) – the relativistic quantum field theory of electrodynamics – describes how light and matter interact – achieves full agreement between quantum mechanics and special relativity. ...
Striving for agreement between theory and experiment and pushing the boundaries of precision are important parts of the scientific process.
General Physics
Feb 26, 2013
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(Phys.org)—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 ...
General Physics
Nov 28, 2012
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(Phys.org)—The world's most stable laser – with frequency variation of no more than 2 parts in 10,000 trillion – has been developed and tested by an international collaboration of scientists at NIST/JILA in Boulder, ...
Optics & Photonics
Sep 11, 2012
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(Phys.org) -- The laws of classical electromagnetism that were developed in the 19th century are the same laws that scientists use today. They include Maxwell’s four equations along with the Lorentz law, which describes ...
A detonation wave is a chemical reaction wave propagating at the velocity of a shock wave along the explosive charge. There is great demand for a detonation model that can accurately simulate the detonation process, which ...
Other
Nov 18, 2011
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(PhysOrg.com) -- Two small NASA probes that had been used to study space weather now are orbiting the moon to study its interior and surface composition.
Space Exploration
Jul 20, 2011
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(PhysOrg.com) -- On Sunday, July 17, the moon will acquire its second new companion in less than a month. That's when the second of two probes built by the University of California, Berkeley, and part of NASA's five-satellite ...
Space Exploration
Jul 13, 2011
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(PhysOrg.com) -- The first of two ARTEMIS ("Acceleration, Reconnection, Turbulence and Electrodynamics of the Moon’s Interaction with the Sun") spacecraft is now in its lunar orbit.
Space Exploration
Jun 29, 2011
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From childhood sweetheart to quantum electrodynamics, the life and scientific contributions of the legendary Richard Feynman, a physicist of mythic hero status, are given a new and stimulating perspective in a book by Arizona ...
General Physics
Mar 14, 2011
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