One of the greatest problems in modern physics is to reconcile the enormous difference between the energy carried by random fluctuations in the vacuum of space, and the dark energy driving the universe's expansion.
General Physics
Mar 6, 2024
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For about 20 years, Caltech Professor of Applied Physics Paul Bellan and his group have been creating magnetically accelerated jets of plasma, an electrically conducting gas composed of ions and electrons, in a vacuum chamber ...
Plasma Physics
Dec 5, 2023
3
21
Researchers have created tiny chip-based optical tweezers that can be used to optically levitate nanoparticles in a vacuum. Optical tweezers—which employ a tightly focused laser beam to hold living cells, nanoparticles ...
Optics & Photonics
Oct 21, 2021
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69
The composition of Antarctic micrometeorites and other tiny but precious rocks such as those from space missions—is really hard to analyze without some sample loss. But a new technique should make it easier, cheaper and ...
Space Exploration
Jul 28, 2020
0
15
The European XFEL X-ray laser opens up new perspectives for high-pressure research: An international team used the intense laser flashes to heat and analyze samples in so-called diamond anvil cells at the X-ray laser for ...
Condensed Matter
Dec 17, 2019
0
5
If you use a vacuum-insulated thermos to help keep your coffee hot, you may know it's a good insulator because heat energy has a hard time moving through empty space. Vibrations of atoms or molecules, which carry thermal ...
Quantum Physics
Dec 11, 2019
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Steven Carlip, a physicist at the University of California, has come up with a theory to explain why empty space seems to be filled with a huge amount of energy—it may be hidden by effects that are canceling it out at the ...
Billions of tiny transistors supply the processing power in modern smartphones, controlling the flow of electrons with rapid on-and-off switching.
General Physics
Dec 10, 2018
0
541
Teams from the accelerator physics and the SRF groups at HZB are developing a superconducting linear accelerator featuring energy recovery (Energy Recovery Linac) as part of the bERLinPro project. It accelerates an intense ...
General Physics
Dec 10, 2018
0
23
Americans in at least seven states voted on ballot initiatives during the 2018 midterm elections. These measures targeted everything from raising targets for the share of electricity drawn from renewable energy to charging ...
Environment
Nov 9, 2018
3
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