An international team of physicists has shown that the mass ratio between protons and electrons is the same in weak and in very strong gravitational fields. Their study, which was partly funded by the FOM Foundation, is published ...
General Physics
Sep 19, 2014
7
1983
Within physics there are certain physical quantities that play a central role. These are things such as the mass of an electron, or the speed of light, or the universal constant of gravity. We aren't sure why these constants ...
General Physics
Sep 5, 2014
8
1
(Phys.org)—Radio-astronomical observations of a distant galaxy indicate that the ratio of the proton's mass to that of the electron has hardly changed over cosmic history. This fundamental constant of nature has changed ...
Astronomy
Dec 13, 2012
12
0
(Phys.org) -- Optical atomic clocks measure time with unprecedented accuracy. However, it is the ability to compare clocks with one another that makes them applicable for high-precision tests in fundamental theory, from cosmology ...
General Physics
Apr 27, 2012
3
0
The electromagnetic force has gotten a little stronger, gravity a little weaker, and the size of the smallest "quantum" of energy is now known a little better. The National Institute of Standards and Technology (NIST) has ...
General Physics
Jul 20, 2011
7
0
How did we get here and where are we headed? These are some of life's biggest questions. To get the answers, one Kansas State University professor is doing the math.
Mathematics
Jun 9, 2009
62
0
Imagine a universe with extremely strong gravity. Stars would be able to form from very little material. They would be smaller than in our universe and live for a much shorter amount of time. But could life evolve there? ...
General Physics
Mar 15, 2023
0
90
It's easy to envisage other universes, governed by slightly different laws of physics, in which no intelligent life, nor indeed any kind of organized complex systems, could arise. Should we therefore be surprised that a universe ...
General Physics
Mar 15, 2023
14
295
A new software tool can accelerate materials science research by cutting out tedious background research on material properties. Penn State and Sandia National Laboratories researchers recently debuted propSym, an open-source ...
Materials Science
Jan 5, 2022
0
10
EU-funded scientists have succeeded in redefining the ampere in terms of fundamental constants of physics. Based on the electron charge, the newly developed microscopic device has been reported as the most accurate technique ...
Quantum Physics
Jun 18, 2018
0
17
