Thermoelectric power generators that make electrical power from waste heat would be a useful tool to reduce greenhouse gas emissions if it weren't for a most vexing problem: The need to make electrical contacts to their hot ...
Materials Science
May 26, 2021
3
1191
To change the direction of motion of a massive object, such as a car, it has to be slowed down and brought to a complete standstill first. Even the tiniest charge carriers in the universe, the electrons, follow this rule. ...
General Physics
May 20, 2021
1
121
Lancaster scientists have demonstrated that other physicists' recent "discovery" of the field effect in superconductors is nothing but hot electrons after all.
Condensed Matter
May 12, 2021
1
169
A new method to trigger rain in places where water is scarce is being tested in the United Arab Emirates using unmanned drones that were designed and manufactured at the University of Bath. The drones carry an electric charge ...
Environment
May 6, 2021
0
354
People might once have considered oxygen a human right. But the pandemic has revealed that access to oxygen—in a pure form, for medical use—is a luxury in most low and middle-income countries.
Other
May 3, 2021
1
11
Researchers in the materials department in UC Santa Barbara's College of Engineering have uncovered a major cause of limitations to efficiency in a new generation of solar cells.
Materials Science
Apr 29, 2021
0
36
Nuclear physicists have made a new, highly accurate measurement of the thickness of the neutron "skin" that encompasses the lead nucleus in experiments conducted at the U.S. Department of Energy's Thomas Jefferson National ...
General Physics
Apr 27, 2021
7
2447
Diodes are widely used electronic devices that act as one-way switches for current. A well-known example is the LED (light-emitting diode), but there is a special class of diodes designed to make use of the phenomenon known ...
Optics & Photonics
Apr 20, 2021
0
8
Researchers at Aalto University have developed a new device for spintronics. The results have been published in the journal Nature Communications, and mark a step towards the goal of using spintronics to make computer chips ...
Nanophysics
Apr 16, 2021
0
1774
DNA sequencing has become so common, few realize how hard it is to even extract a single molecule of DNA from a biological sample.
Bio & Medicine
Apr 6, 2021
0
84
