Physicists investigate erasing information at zero energy cost
21 hours ago feature
(Phys.org)—A few years ago, physicists showed that it's possible to erase information without using any energy, in contrast to the assumption at the time that erasing information must require energy. Instead, the scientists ...
How do you cool a city in a warming world?
Feb 21, 2017
Globally, 2016 was the warmest year on record. In Los Angeles, temperature records were shattered last summer during scorching heat waves that saw highs of 100 degrees for five days straight.
Breakthrough in understanding heat transport with a chain of gold atoms
Feb 17, 2017
The precise control of electron transport in microelectronics makes complex logic circuits possible that are in daily use in smartphones and laptops. Heat transport is of similar fundamental importance and its control is ...
Extreme high temperatures set to break records: ANU expert
Feb 10, 2017
A climate and health expert at The Australian National University (ANU) has warned that extreme high temperatures across New South Wales, including Western Sydney, and in Canberra could set new temperature records and put ...
Electrons play a key role in heat transport through 2-D tin sheets
Feb 08, 2017
Heat travels through atom-thin sheets of tin in a very unusual way, A*STAR researchers have found. The discovery could help develop applications for the material, including thermoelectric refrigeration or power generation.
Novel LED street lights reduce costs
Feb 07, 2017
Researchers of Karlsruhe Institute of Technology (KIT) have developed a novel type of LED street light of increased efficiency. Compared to conventional LEDs, power consumption may be reduced by up to 20%. This will also ...
Radial core heat spreader to improve Stirling radioisotope generator heat rejection
Feb 06, 2017
The NASA Glenn Research Center is developing the next generation of Stirling Radioisotope Generators (SRGs) to power deep space science missions. One potential technology gap is the waste heat rejection approach for higher ...
NASA's new shape-shifting radiator inspired by origami
Jan 31, 2017
Japan's ancient art of paper folding has inspired the design of a potentially trailblazing "smart" radiator that a NASA technologist is now developing to remove or retain heat on small satellites.
The world's first heat-driven transistor
Jan 31, 2017
Dan Zhao and Simone Fabiano at the Laboratory of Organic Electronics, Linköping University, have created a thermoelectric organic transistor. A temperature rise of a single degree is sufficient to cause a detectable current ...
When the heat is on, we need city-wide plans to keep cool
Jan 30, 2017
The recent spate of heatwaves through eastern Australia has reminded us we're in an Australian summer. On top of another record hot year globally, and as heatwaves become more frequent and intense, our cities are making ...