If mechanoluminescent materials are subjected to external mechanical stress, they emit visible or invisible light. Such excitation can occur due to bending or gentle pressure, for example, but also completely contact-free ...
Condensed Matter
Jun 17, 2022
0
78
(Phys.org)—Engineers got a first-hand look at how the James Webb Space Telescope's sunshield would fold around the observatory while stored in the rocket that would take it to its orbit a million miles from Earth.
Space Exploration
Dec 4, 2012
1
0
Researchers have developed a new sensor that could allow practical and low-cost detection of low concentrations of methane gas. Measuring methane emissions and leaks is important to a variety of industries because the gas ...
Optics & Photonics
Feb 23, 2021
0
124
3C 397 (also known as G41.1-0.3) is a Galactic supernova remnant with an unusual shape.
Astronomy
Nov 7, 2013
0
0
Controlling thermal radiation is crucial in various industries and applications. In particular, infrared emissions from the body are important since body temperature can be regulated without the use of external energy sources ...
Materials Science
Aug 25, 2022
1
36
Understanding the evolution of galaxies is one of the biggest questions confronting astronomers today. Looking at distant astronomical objects gives scientists important clues to the origins of the Milky Way Galaxy and other ...
Astronomy
Dec 8, 2009
0
0
(Phys.org)—Using a new method for estimating greenhouse gases that combines atmospheric measurements with model predictions, Lawrence Berkeley National Laboratory (Berkeley Lab) researchers have found that the level of ...
Environment
Dec 4, 2012
1
0
Some materials luminesce, changing their color and intensity when under mechanical forces such as grinding or rubbing. These luminescent "mechanochromic" materials can produce various emission colors in the visible light ...
Materials Science
May 31, 2017
0
4
(Phys.org) —A new image from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument on NASA's Terra spacecraft shows the extent of destruction from the deadly Newcastle-Moore tornado that ...
Earth Sciences
Jun 6, 2013
2
0
