A successful measurement of the distribution of quarks that make up protons conducted at DOE's Jefferson Lab has found that a quark's spin can predict its general location inside the proton. Quarks with spin pointed in the ...
General Physics
Apr 2, 2013
24
0
(Phys.org) —The word "core" conjures up an image of something strong. However, new experiments show that the iron found in the Earth's core is relatively weak. This finding is based on x-ray spectroscopy and diffraction ...
Earth Sciences
Jan 27, 2014
0
0
Atomic nuclei are made of nucleons (like protons and neutrons), which themselves are made of quarks. When crushed at high densities, nuclei dissolve into a liquid of nucleons and, at even higher densities, the nucleons themselves ...
Condensed Matter
Dec 29, 2023
16
1909
Tokamak devices use strong magnetic fields to confine and to shape the plasma that contains the fuel that achieves fusion. The shape of the plasma affects the ease or difficulty of achieving a viable fusion power source. ...
Plasma Physics
Sep 2, 2021
2
264
When some semiconductors absorb light, excitons (or particle pairs made of an electron bound to an electron hole) can form. Two-dimensional crystals of tungsten disulfide (WS2) have unique exciton states that are not found ...
Condensed Matter
Jun 20, 2023
0
943
Microbes are foundational for life on Earth. These tiny organisms play a major role in everything from transforming sunlight into the fundamental molecules of life. They help to produce much of the oxygen in our atmosphere. ...
Cell & Microbiology
Jan 30, 2023
0
174
A quintillion calculations a second. That's one with 18 zeros after it. It's the speed at which an exascale supercomputer will process information. The Department of Energy (DOE) is preparing for the first exascale computer ...
Quantum Physics
Aug 3, 2020
0
351
The proton is a composite particle made up of fundamental building blocks of quarks and gluons. These components and their interactions determine the proton's structure, including its electrical charges and currents. This ...
General Physics
Oct 3, 2022
4
366
Midwesterners needn't bother choosing their poison: droughts or floods. They get a double dose of both.
Earth Sciences
Feb 10, 2023
0
189
Ultrafast pulses from X-ray lasers reveal how atoms move at timescales of a femtosecond. That's a quadrillionth of a second. However, measuring the properties of the pulses themselves is challenging. While determining a pulse's ...
Optics & Photonics
Aug 5, 2022
0
139
