News tagged with entropy
Second Law of Thermodynamics May Explain Economic Evolution
(PhysOrg.com) -- Terms such as the "invisible hand," laissez-faire policy, and free-market principles suggest that economic growth and decline in capitalist societies seem to be somehow self-regulated. Now, ...
Nov 02, 2009 |
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Cosmic entropy could be 100 times greater than previously thought
(PhysOrg.com) -- A new analysis of supermassive black holes has discovered the entropy of the universe is much greater than previously thought, which means it may also be very slightly closer to ultimate heat death.
Oct 06, 2009 |
4.3 / 5 (21) |
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Pushing the cold frontier in an orderly fashion
Physicists are continually reaching new lows as they reduce the temperatures of samples in their laboratories. But even nano-kelvins are not low enough to overcome the entropy (a measure of the disorder in ...
Sep 28, 2009 |
5 / 5 (5) |
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How to Measure What We Don't Know
(PhysOrg.com) -- How do we discover new things? For scientists, observation and measurement are the main ways to extract information from Nature. Based on observations, scientists build models that, in turn, are used to make ...
Sep 10, 2009 |
4.7 / 5 (24) |
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Physicist Proposes Solution to Arrow-of-Time Paradox
(PhysOrg.com) -- Entropy can decrease, according to a new proposal - but the process would destroy any evidence of its existence, and erase any memory an observer might have of it. It sounds like the plot ...
Aug 27, 2009 |
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Could Maxwell's Demon Exist in Nanoscale Systems?
(PhysOrg.com) -- Maxwell’s demon may be making a comeback. Physicists know that the demon, an imaginary creature that decreases the entropy of a system, cannot exist in macroscopic systems due to the energy ...
Jun 24, 2009 |
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Researcher finds optimal fix-free codes
(PhysOrg.com) -- More than 50 years after David Huffman developed Huffman coding, an entropy encoding algorithm used for lossless data compression in computer science and information theory, an electrical ...
Technology / Computer Sciences
Apr 03, 2009 |
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Entropyman.org Explains Why Pots 'Unbreak' on the Nanoscale (Video)
(PhysOrg.com) -- A man lifts his hand in the air, and broken pieces of ceramic lying on the sidewalk spring up into his hand, coming together to form a flower pot. He lifts his hands again, and more broken ...
Feb 16, 2009 |
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Researchers See Complex Atomic Choreography as Crystals Melt
(PhysOrg.com) -- Conga lines of atoms wend their way through a crystal, their numbers growing as more and more atoms join the migration. The worm-like lines of atoms randomly converge, forming tangles that ...
Feb 02, 2009 |
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