The gas turbines powering aircraft engines rely on ceramic coatings that ensure structural stability at high temperatures. But these coatings don't control heat radiation, limiting the performance of the engine.
Nanophysics
Nov 19, 2019
0
199
The ever-more-humble carbon nanotube may be just the device to make solar panels—and anything else that loses energy through heat—far more efficient.
Nanophysics
Jul 12, 2019
4
2135
Earth's ultimate survivors can weather extreme heat, cold, radiation and even the vacuum of space. Now the U.S. military hopes these tiny critters called tardigrades can teach us about true toughness.
Plants & Animals
Mar 20, 2019
0
478
Directly converting electrical power to heat is easy. It regularly happens in your toaster, that is, if you make toast regularly. The opposite, converting heat into electrical power, isn't so easy.
General Physics
Jul 9, 2018
2
522
New research has shown that natural variations in global mean temperature are always forced by changes in heat release and heat uptake by the oceans, in particular the heat release associated with evaporation.
Environment
May 15, 2018
0
284
For the first time, a team of scientists have calculated the distribution of all light energy contained within the Milky Way, which will provide new insight into the make-up of our galaxy and how stars in spiral galaxies ...
Astronomy
Jul 27, 2017
0
1475
When heat travels between two objects that aren't touching, it flows differently at the smallest scales—distances on the order of the diameter of DNA, or 1/50,000 of a human hair.
Nanophysics
Dec 10, 2015
0
80
(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 of highly ...
Astronomy
Sep 6, 2013
1
0
Objects that are smaller than the wavelength of thermal radiation cannot radiate heat efficiently. A generalized theory of thermal radiation has now been experimentally confirmed at the level of a single object at the Vienna ...
General Physics
Jul 10, 2013
2
0
(Phys.org) —How much light has been emitted by all galaxies since the cosmos began? After all, every photon (particle of light) from ultraviolet to far infrared wavelengths ever radiated by all galaxies that ever existed ...
Astronomy
May 24, 2013
66
0
