(Phys.org)—In 1876, the Austrian physicist Ludwig Boltzmann noticed something surprising about his equations that describe the flow of heat in a gas. Usually, the colliding gas particles eventually reach a state of thermal ...
(Phys.org)—Physicists have proposed a new type of Maxwell's demon—the hypothetical agent that extracts work from a system by decreasing the system's entropy—in which the demon can extract work just by making a measurement, ...
A new heat storage material could help to significantly improve the energy efficiency of buildings. Developed by researchers at Martin Luther University Halle-Wittenberg (MLU) and the University of Leipzig, it can be used ...
Materials Science
Mar 29, 2022
4
281
As part of a team of collaborators from Northern Arizona University and Johns Hopkins University, Northern Arizona University (NAU) Ph.D. candidate Ari Koeppel recently discovered that water was once present in a region of ...
Planetary Sciences
Nov 30, 2021
0
654
Nearly every material, whether it is solid, liquid, or gas, expands when its temperature goes up and contracts when its temperature goes down. This property, called thermal expansion, makes a hot air balloon float, and the ...
Condensed Matter
Jul 27, 2023
1
718
The rate at which carbon emissions warmed Earth's climate almost 56 million years ago resembles modern, human-caused global warming much more than previously believed, but involved two pulses of carbon to the atmosphere, ...
Earth Sciences
Dec 15, 2014
151
1
Researchers at the University of Houston have created a new thermoelectric material, intended to generate electric power from waste heat - from a vehicle tailpipe, for example, or an industrial smokestack - with greater efficiency ...
Condensed Matter
Mar 3, 2015
4
2356
Over the past few years, many physicists worldwide have conducted research investigating chaos in quantum systems composed of strongly interacting particles, also known as many-body chaos. The study of many-body chaos has ...
Thermoelectric materials can use thermal differences to generate electricity. Now there is an inexpensive and environmentally friendly way of producing them with the simplest tools: a pencil, photocopy paper, and conductive ...
General Physics
Feb 19, 2018
0
722
Earth's magnetic field is crucial for our existence, as it shields the life on our planet's surface from deadly cosmic rays. It is generated by turbulent motions of liquid iron in Earth's core. Iron is a metal, which means ...
General Physics
Jan 28, 2015
14
2327
