category: academic
Characterizing the 'arrow of time' in open quantum systems
Even in the strange world of open quantum systems, the arrow of time points steadily forward—most of the time. New experiments conducted at Washington University in St. Louis compare the forward and reverse trajectories of …
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GRAVITATIONAL FIELD
If now, as we find from experience, the acceleration is to be independent of the nature and the condition of the body and always the same for a given gravitational field, then the ratio of …
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THE PRINCIPLE OF RELATIVITY (IN THE RESTRICTED SENSE)
THE PRINCIPLE OF RELATIVITY (IN THE RESTRICTED SENSE) BY ALBERT EINSTEIN
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SPACE AND TIME IN CLASSICAL MECHANICS
SPACE AND TIME IN CLASSICAL MECHANICS BY ALBERT EINSTEIN
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Quantum particles :: When photons spice up the energy levels of quantum particles
Quantum particles :: When photons spice up the energy levels of quantum particles
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The Physics of Sound 1
Sound lies at the very center of speech communication. A sound wave is both the end product of the speech production mechanism and the primary source of raw material used by the listener to recover …
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THEOREM OF THE ADDITION OF VELOCITIES. THE EXPERIMENT OF FIZEAU
On this point we are enlightened by a most important experiment which the brilliant physicist Fizeau performed more than half a century ago, and which has been repeated since then by some of the best …
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Hope is the bedrock of this nation. The belief that our destiny will not be written for us, but by us, by all those men and women who are not content to settle for the world as it is, who have the courage to remake the world as it should be.
---Barack Obama
Youth can not know how age thinks and feels. But old men are guilty if they forget what it was to be young.