News tagged with heat radiation

Iron in the sun: A greenhouse gas for X-ray radiation

(Phys.org) —Scientists from the Heidelberg Max Planck Institute for Nuclear Physics (MPIK) in cooperation with DESY (Hamburg) at the synchrotron PETRA III have investigated for the first time X-ray absorption ...

Sep 06, 2013
4.4 / 5 (17) 1 | with audio podcast

Breaking the Planck's law, at the nanoscale

(PhysOrg.com) -- A well-established physical law describes the transfer of heat between two objects, but some physicists have long predicted that the law should break down when the objects are very close together. ...

Jul 29, 2009
4.9 / 5 (26) 11

Powering lasers through heat

In micro electronics heat often causes problems and engineers have to put a lot of technical effort into cooling, for example micro chips, to dissipate heat that is generated during operation. Austrian physicists ...

Nov 13, 2012
5 / 5 (6) 2 | with audio podcast

Testing geoengineering

Solar radiation management is a class of theoretical concepts for manipulating the climate in order to reduce the risks of global warming caused by greenhouse gasses. But its potential effectiveness and risks are uncertain, ...

Oct 26, 2011
3.7 / 5 (3) 1 | with audio podcast

Solar cells made from black silicon

Solar cells convert three-quarters of the energy contained in the Sun's spectrum into electricity – yet the infrared spectrum is entirely lost in standard solar cells. In contrast, black silicon solar cells ...

Oct 01, 2012
3 / 5 (2) 1