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Latest Thermodynamic entropy Stories

2011-08-29 21:01:00

As politicians know, repetition is often key to getting your message across. Now a former physicist studying linguistics at the Polish Academy of Sciences has taken this intuitive concept and incorporated it into a mathematical model of human communication. In a paper in the AIP's journal Chaos, Łukasz Dębowski mathematically explores the idea that as humans we often repeat ourselves in an effort to get the story to stick. Using statistical observations about the...

2011-06-01 23:44:13

New understanding of entropy From a laptop warming a knee to a supercomputer heating a room, the idea that computers generate heat is familiar to everyone. But theoretical physicists have discovered something astonishing: not only do computational processes sometimes generate no heat, under certain conditions they can even have a cooling effect. Behind this finding are fundamental considerations relating to knowledge and a lack of knowledge. The researchers publish their findings today in the...

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2011-03-01 08:56:40

It may seem illogical, but boiling is a very efficient way to cool engineering components and systems used in the extreme environments of space. An experiment to gain a basic understanding of this phenomena launched to the International Space Station on space shuttle Discovery Feb. 24. The Nucleate Pool Boiling Experiment, or NPBX, is one of two experiments in the new Boiling eXperiment Facility, or BXF. Nucleate boiling is bubble growth from a heated surface and the subsequent detachment of...

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2010-07-13 10:25:00

A Purdue University researcher has used "econophysics" to show that under ideal circumstances free markets promote fair salaries for workers and do not support CEO compensation practices common today. The research presents a new perspective on 18th century economist Adam Smith's concept that an "invisible hand" drives a free market economy to a collective good. "It is generally believed that the free market cares only about efficiency and not fairness. However, my theory shows that even...

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2010-01-28 14:50:00

Less symmetrical and more complex patterns occur due to entropy Scientists have long studied how atoms and molecules structure themselves into intricate clusters. Unlocking the design secrets of Nature offers lessons in engineering artificial systems that could self-assemble into any desired form. In the January 29th issue of Science, a team from Harvard led by Vinothan Manoharan and Michael Brenner, presents additional clues to how and why groups of atoms and molecules may favor less...

2009-12-09 20:07:51

In a study that elevates the role of entropy in creating order, research led by the University of Michigan shows that certain pyramid shapes can spontaneously organize into complex quasicrystals. A quasicrystal is a solid whose components exhibit long-range order, but without a single pattern or a unit cell that repeats. A paper on the findings appears in the Dec. 10 issue of Nature. Researchers from Case Western Reserve University and Kent State University collaborated on the study. Entropy...

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2009-11-04 08:45:00

Chief executives in 35 of the top Fortune 500 companies were overpaid by about 129 times their "ideal salaries" in 2008, according to a new type of theoretical analysis proposed by a Purdue University researcher to determine fair CEO compensation. "One of the most pressing economic and corporate governance issues of the day is how to determine fair pay packages for CEOs," said Venkat Venkatasubramanian, a professor of chemical engineering. "The proposed theory allows us to compute what the...

2009-09-28 07:39:59

Rather than reducing disorder, physicists find a way to simply move it somewhere else 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 a system) that stands between them and the discovery of exotic states of ultra-cold matter. Now physicists at two Italian universities have developed a technique that siphons entropy out of a collection of...

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2008-08-09 14:00:00

"Ye canna change the laws of physics!" Scotty warned Captain Kirk on "Star Trek." But engineers and physicists at the University of Maryland may rewrite one of them. The Third Law of Thermodynamics is on the minds of John Cumings, assistant professor of materials science and engineering at the University of Maryland's A. James Clark School of Engineering, and his research group as they examine the crystal lattice structure of ice and seek to define exactly what happens when it freezes....

2006-11-24 09:00:51

Research and Markets (http://www.researchandmarkets.com/reports/c45860) has announced the addition of Yaws' Handbook of Thermodynamic Properties for Hydrocarbons and Chemicals to their offering. Written by one of the most prolific and well-respected chemical engineers that the industry has ever produced, this is the most comprehensive and thorough volume ever written on the thermodynamic properties of hydrocarbons and chemicals. Carl Yaws is the world's foremost authority on vapour...


Word of the Day
omadhaun
  • A fool; a simpleton: a term of abuse common in Ireland and to a less extent in the Gaelic-speaking parts of Scotland.
This word is partly Irish in origin.