Gravitational wave

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In physics, a gravitational wave is a fluctuation in the curvature of spacetime which propagates as a wave, traveling outward from the source. Predicted by Einstein's theory of general relativity, the waves transport energy known as gravitational radiation. Sources of gravitational waves include binary star systems composed of white dwarfs, neutron stars, or black holes.

Although gravitational radiation has not yet been directly detected, it has been indirectly shown to exist. This was the basis for the 1993 Nobel Prize in Physics, awarded for measurements of the Hulse-Taylor binary system. Various gravitational wave detectors exist.

For more information about Gravitational wave, read the full article at Wikipedia.
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News tagged with gravitational waves

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Black Holes in Star Clusters stir up Time and Space

Black Holes in Star Clusters stir up Time and Space (w/ Video)

Space & Earth / Astronomy

created Dec 16, 2009 | popularity 4.8 / 5 (13) | comments 5

(PhysOrg.com) -- Within a decade scientists could be able to detect the merger of tens of pairs of black holes every year, according to a team of astronomers at the University of Bonn’s Argelander-Institut ...


 perpetual motion machine

Could Exotic Matter Provide an Infinite Source of Energy?

Physics / General Physics

created Sep 15, 2009 | popularity 3.3 / 5 (34) | comments 63

(PhysOrg.com) -- Generally, scientists prefer to avoid the concept of perpetual motion. The idea of a machine that could produce movement that goes on forever, and using that movement to generate an endless ...


Studying the 'mountains' and 'starquakes' that develop on neutron stars

Physics / General Physics

created May 26, 2009 | popularity 3.8 / 5 (13) | comments 1

(PhysOrg.com) -- Neutron stars have the potential to play an important role in understanding some of the mysteries of the universe. One of factors that could help lead to an understanding of gravitational waves and the mechanisms ...


gravitational wave

Galaxy-Sized Observatory for Gravitational Waves

Physics / General Physics

created Sep 17, 2009 | popularity 4.2 / 5 (13) | comments 14

(PhysOrg.com) -- Astronomers are making plans to create a galaxy-sized observatory to look for gravitational waves. The project is part of a joint effort with astronomers from Australia and Europe, who also ...


Gravity waves could hold key to supersymmetry

Physics / General Physics

created Nov 05, 2008 | popularity 4.4 / 5 (59) | comments 11

(PhysOrg.com) -- "In Geneva," Anupam Mazumdar tells PhysOrg.com, "there is a big effort to discover supersymmetry particles at the Large Hadron Collider. But that is not the only way to find these particles. We should also b ...


Listening for Gravitational Echoes of the Universe's Birth

Listening for Gravitational Echoes of the Universe's Birth

Physics / General Physics

created Aug 19, 2009 | popularity 3.6 / 5 (24) | comments 66

(PhysOrg.com) -- An investigation by a major scientific group has advanced understanding of the early evolution of the universe.


Neutron star

Star crust 10 billion times stronger than steel, physicists find

Space & Earth / Astronomy

created May 06, 2009 | popularity 4.5 / 5 (47) | comments 26

(PhysOrg.com) -- Research by a theoretical physicist at Indiana University shows that the crusts of neutron stars are 10 billion times stronger than steel or any other of the earth's strongest metal alloys.


Quantum goes massive

Quantum goes massive

Physics / Quantum Physics

created Jul 16, 2009 | popularity 4.5 / 5 (23) | comments 5

(PhysOrg.com) -- An astrophysics experiment in America has demonstrated how fundamental research in one subject area can have a profound effect on work in another as the instruments used for the Laser Interferometer ...


Who cares about the fourth dimension?

Who cares about the fourth dimension?

Physics / General Physics

created Feb 03, 2009 | popularity 4.3 / 5 (16) | comments 29

Austrian scientists are trying to understand the mysteries of the holographic principle: How many dimensions are there in our universe?


Pulsar orbiting a companion neutron star

New EINSTEIN@HOME effort launched: home computers to search Arecibo data for new pulsars

Space & Earth / Astronomy

created Mar 24, 2009 | popularity 4.5 / 5 (6) | comments 0

Einstein@Home, based at the University of Wisconsin--Milwaukee (UWM) and the Albert Einstein Institute (AEI) in Germany, is one of the world's largest public volunteer distributed computing projects. More ...