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Latest Statistical mechanics Stories

2014-07-16 08:20:31

New Initiative Locates and Measures Seeping Methane, Highlights Unseen Climate Risk; Interactive Online Maps Will Help Utilities, Regulators Accelerate System Upgrades NEW YORK, July 16, 2014 /PRNewswire-USNewswire/ -- Environmental Defense Fund today unveiled interactive online maps showing natural gas leaks beneath the streets of Boston, Indianapolis and New York City's Staten Island. Leaks like these rarely pose an immediate safety threat, but the leaking natural gas - which is...

2014-05-08 09:33:20

"What a curious feeling," says Alice in Lewis Carroll's tale, as she shrinks to a fraction of her size, and everything around her suddenly looks totally unfamiliar. Scientists too have to get used to these curious feelings when they examine matter on tiny scales and at low temperatures: all the behavior we are used to seeing around us is turned on its head. In research published today in the journal Nature Communications, UCL scientists have made a startling discovery about a familiar...

2013-01-28 19:40:08

Varying magnetic fields and temperature conditions help to elucidate smart materials´ transitory magnetic disorder Novel, smart materials like shape memory alloys very often display so-called glass-like magnetism. Other smart materials with similar properties include those which, when exposed to a magnetic field, change their electrical resistance, known as manganites, or change their temperature, known as magnetocaloric materials. Kaustav Mukherjee and his colleagues from the...

Far-reaching Problem In Computer Simulations Deciphered By Scientists
2013-01-03 12:19:27

DOE/Lawrence Berkeley National Laboratory Because modern computers have to depict the real world with digital representations of numbers instead of physical analogues, to simulate the continuous passage of time they have to digitize time into small slices. This kind of simulation is essential in disciplines from medical and biological research, to new materials, to fundamental considerations of quantum mechanics, and the fact that it inevitably introduces errors is an ongoing problem for...

2012-12-24 15:14:47

Forget solid, liquid, and gas: there are in fact more than 500 phases of matter. In a major paper in today's issue of Science, Perimeter Faculty member Xiao-Gang Wen reveals a modern reclassification of all of them. Condensed matter physics — the branch of physics responsible for discovering and describing most of these phases — has traditionally classified phases by the way their fundamental building blocks — usually atoms — are arranged. The key is something...

2012-05-21 23:59:09

Researchers try to get the temperature-independent energy spectrum of some materials for obtaining all their thermodynamic properties from their experimental heat capacities alone. However, measurements are made at finite temperatures in practice, such as with phonon spectra obtained by inelastic neutron scattering, so it is very difficult to obtain a T-independent energy spectrum for any real material. One promising method to obtain such a spectrum is to solve the so-called specific...

2012-04-20 09:50:15

A clearer link is established "Money, it's a gas," says the sixties rock group Pink Floyd in their song "Money." Indeed, physics professor Victor Yakovenko is an expert in statistical physics and studies how the flow of money and the distribution of incomes in American society resemble the flow of energy between molecules in a gas. In his lectures to be delivered on April 19 at New York University and April 20 at the New School for Social Research, Yakovenko will bring his...

2011-10-19 13:00:32

Experimental confirmation of a fundamental physical theorem The so-called ergodic theorem formulates a fundamental physical principle relating to the behavior of dynamical systems. Essentially the theorem states that in a multiparticle system each individual particle behaves just as “chaotically” as does the system as a whole. In other words, one can extrapolate from the behavior of a single element to that of the whole system. Strangely enough, in spite of its wide-ranging...

2011-01-26 12:06:56

There is considerable interest in understanding transport and information pathways in living cells. It is crucial for both the transport of, for example, medicine into cells, the regulation of cell life processes and their signalling with their environment. New research in biophysics at the Niels Bohr Institute shows surprisingly that the transport mechanisms do not follow the expected pattern. The results have been published in the scientific journal Physical Review Letters. The researchers...


Word of the Day
kenspeckle
  • Having so marked an appearance as easily to be recognized.
This word may come from the Swedish 'kanspak,' quick at recognizing persons or things, or else from confusion with 'conspicuous.'