Approximately 85% of the mass of our galaxy is comprised by dark matter, matter that does not emit, absorb or reflect light and thus cannot be directly observed. While several studies have hinted at or theorized about its ...
(Phys.org)—Scientists have replaced the telescope with the microscope: Using the similarities between the structure of a crystal and the state of the cosmos in the early universe, they have explored a yet unconfirmed phenomenon, ...
General Physics
Jan 3, 2013
22
0
If they exist, axions, among the candidates for dark matter particles, could interact with the matter comprising the universe, but at a much weaker extent than previously theorized. New, rigorous constraints on the properties ...
General Physics
Feb 15, 2018
22
112
Though it was hailed as a triumph for the "Standard Model" of physics, the reigning explanation of fundamental forces and particles, physicists were quick to emphasize that last year's discovery of the Higgs boson still left ...
General Physics
Jan 13, 2014
5
0
Do electrons have a fourth property in addition to mass, charge and spin, as popular physics theories such as supersymmetry predict? Researchers from Germany, the Czech Republic and the USA want to find the answer to this ...
General Physics
Jul 20, 2010
28
0
A new optical effect in nanoscale disks of silicon, namely patterns of radiation that do not emit or scatter light, has been observed by A*STAR researchers and international collaborators. These modes, which have never before ...
General Physics
Jul 13, 2016
0
126
Most molecules occur in several shapes, which may behave very differently. Using a sorting machine for molecules, a German–Swiss research team can now for the first time directly measure the various reaction rates of different ...
Materials Science
Oct 3, 2013
0
0
In 1820, Hans Christian Oersted gave a demonstration on electricity to a class of advanced students at the University of Copenhagen in Denmark. Using an early battery prototype, he looked to see what effect an electric current ...
General Physics
Mar 20, 2020
0
508
The discovery of the Higgs boson was a landmark in the history of physics. It explained something fundamental: how elementary particles that have mass get their masses. But it also marked something no less fundamental: the ...
General Physics
Jan 13, 2022
1
73
JILA physicists have for the first time used their spinning molecules technique to measure the "roundness" of the electron, confirming the leading results from another group and suggesting that more precise assessments are ...
General Physics
Oct 10, 2017
3
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