The National Science Foundation has awarded a $221,660 grant to Indiana University faculty member Amit Hagar for the first comprehensive study of fundamental length, a concept that has intrigued theoretical physicists off ...
General Physics
Mar 23, 2010
21
0
(Phys.org)—A pioneering technology capable of atomic-level precision is now being developed to detect what so far has remained imperceptible: gravitational waves or ripples in space-time caused by cataclysmic events including ...
General Physics
Oct 18, 2012
7
0
It is almost always assumed in cosmological calculations that there is a even distribution of matter in the universe. This is because the calculations would be much too complicated if the position of every single star were ...
General Physics
Dec 6, 2021
23
1193
The theory of general relativity (GR), proposed by Einstein over a century ago, remains one of the most well-known scientific postulates of all time. This theory, which explains how spacetime curvature is altered in the presence ...
Astronomy
Jun 16, 2023
0
119
Albert Einstein's handwritten notes for the theory of relativity fetched a record 11.6 million euros ($13 million) at an auction in Paris on Tuesday.
General Physics
Nov 23, 2021
0
393
(Phys.org) —As the universe expands, it is continually subjected to energy shifts, or "quantum fluctuations," that send out little pulses of "sound" into the fabric of spacetime. In fact, the universe is thought to have ...
General Physics
Apr 3, 2013
11
0
Normally, causal influence is assumed to go only one way—from cause to effect—and never back from the effect to the cause—the ringing of a bell does not cause the pressing of the button that triggered it. Now, researchers ...
Quantum Physics
Feb 9, 2021
5
120
(PhysOrg.com) -- A pair of neutron stars spiraling toward each other until they merge in a violent explosion should produce detectable gravitational waves. A new study led by an undergraduate at the University of California, ...
Astronomy
Dec 2, 2010
6
0
During his 60 years in general relativity, the field of physics established by Albert Einstein, University of Pittsburgh Professor Emeritus of physics and astronomy Ezra T. Newman not only worked alongside some of Einstein's ...
General Physics
Nov 18, 2010
1
0
(PhysOrg.com) -- Two new studies have put Einstein's General Theory of Relativity to the test like never before, using observations of galaxy clusters to study the properties of gravity on cosmic scales.
Astronomy
Mar 24, 2011
6
0
