News tagged with energy states

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 ...

Physics / General Physics

created Jun 24, 2009 | popularity 4.4 / 5 (19) | comments 30 feature

Researchers make breakthrough in the quantum control of light

Researchers at UC Santa Barbara have recently demonstrated a breakthrough in the quantum control of photons, the energy quanta of light. This is a significant result in quantum computation, and could eventually ...

Physics / Quantum Physics

created May 29, 2009 | popularity 4.7 / 5 (15) | comments 0

Evidence of macroscopic quantum tunneling detected in nanowires

A team of researchers at the University of Illinois has demonstrated that, counter to classical Newtonian mechanics, an entire collection of superconducting electrons in an ultrathin superconducting wire is ...

Nanotechnology / Nanophysics

created May 27, 2009 | popularity 4.3 / 5 (15) | comments 6

Magnetic Cactus Experimentally Demonstrates Mathematical Plant Patterns

(PhysOrg.com) -- One of humanity’s earliest mathematical inquiries might have involved the geometric patterns in plants. The arrangement of leaves on a branch, seeds in a sunflower, and spines on a cactus ...

Physics / General Physics

created May 20, 2009 | popularity 4.8 / 5 (20) | comments 0 feature

Graphene Yields Secrets to Its Extraordinary Properties

(PhysOrg.com) -- Applying innovative measurement techniques, researchers from the Georgia Institute of Technology and the National Institute of Standards and Technology have directly measured the unusual energy ...

Nanotechnology / Nanophysics

created May 14, 2009 | popularity 4.8 / 5 (26) | comments 0

US more optimistic about climate deal after talks

(AP) -- The top U.S. negotiator on climate change said Tuesday that he is slightly more optimistic about striking a new international agreement to curb global warming after a two-day meeting with the world's largest emitters ...

Space & Earth / Environment

created Apr 28, 2009 | popularity 1 / 5 (3) | comments 4

Energy secretary: Islands could disappear

(AP) -- U.S. Energy Secretary Steven Chu is warning that if countries don't do something about climate change, "some island states will simply disappear."

Space & Earth / Environment

created Apr 19, 2009 | popularity 4.3 / 5 (61) | comments 6

Empire State Building going green

The Empire State Building is being converted into an eco-friendly skyscraper, transforming the landmark into a "green" architectural marvel as part of a multimillion-dollar upgrade, officials said Monday.

Technology / Energy & Green Tech

created Apr 07, 2009 | popularity not rated yet | comments 0

Americans support action on global warming despite economic crisis

Even in the midst of a growing economic crisis last fall, over 90 percent of Americans said that the United States should act to reduce global warming, according to a national survey released today by researchers at Yale ...

Other Sciences / Social Sciences

created Mar 18, 2009 | popularity 1 / 5 (1) | comments 0

Quantum doughnuts slow and freeze light at will: 'fast computing & slow glass'

(PhysOrg.com) -- Research led by the University of Warwick has found a way to use doughnuts shaped by-products of quantum dots to slow and even freeze light, opening up a wide range of possibilities from reliable and effective ...

Physics / General Physics

created Mar 09, 2009 | popularity 4.5 / 5 (10) | comments 2

Stable Thanks to Dynamics - DNA Component Resists UV Radiation

(PhysOrg.com) -- Complex computer simulations have, for the first time, allowed scientists to examine in detail the processes that help to ensure the stability of DNA when exposed to UV light. The findings, ...

Chemistry / Biochemistry

created Feb 23, 2009 | popularity 5 / 5 (1) | comments 0