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Latest General relativity Stories

423c209287a968f85dd193679b357ad8
2008-11-07 10:25:00

A team of theoretical and experimental physicists, with participants from Case Western Reserve University, have designed a new black hole simulator called BlackMax to search for evidence that extra dimensions might exist in the universe. Information about BlackMax's creation has been published in Physical Review Letters in the article, "BlackMax: A Black-Hole Event Generator with Rotation, Recoil, Split Branes and Brane Tension." Black holes are theorized to be regions in space where the...

2008-10-09 03:00:19

By Anonymous A study of two unequal mass stars in close orbits has produced results in keeping with Einstein's theory of general relativity. "Einstein's theory predicts that stars in such a system will come closer and closer to each other as they lose energy due to gravitational radiation," says Dr Rhamesh Bhat of Swinburne University's Centre for Astrophysics and Supercomputing. "Previous research has supported Einstein's theory in this context." Such tests are applied quite frequently...

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2008-06-03 11:11:47

It often turns out there is more to commonplace everyday events than meets the eye. The folding of paper, or fall of water droplets from a tap, are two such events, both of which involve the creation of singularities requiring sophisticated mathematical techniques to describe, analyse and predict. On the positive side, there is much in common between many such singular events across the whole range of scales, from microscopic interactions to the very formation of the universe itself during...

6b3e97847dc323035b56451dc4efb181
2008-06-02 11:05:00

New information about the heart of one of the most famous objects in the sky -- the Crab Pulsar in the Crab Nebula -- has been revealed by an international team of scientists searching for gravitational waves. The team's achievement also is the first direct look into the interior of a neutron star.The research team detected signals from the pulsar -- a rapidly spinning neutron star -- with the Laser Interferometer Gravitational-Wave Observatory (LIGO). The analysis of the signals reveals that...

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2008-05-26 09:45:00

Aim to produce new generation of astronomer that understands theory and observationThe future of fundamental physics research lies in observing the early universe and developing models that explain the new data obtained. The availability of much higher resolution data from closer to the start of the universe is creating the potential for further significant theoretical breakthroughs and progress resolving some of the most difficult and intractable questions in physics. But this requires much...

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2008-05-15 10:05:00

Physicists at Penn State have provided a mechanism by which information can be recovered from black holes, those regions of space where gravity is so strong that, according to Einstein's theory of general relativity, not even light can escape. The team's findings pave the way toward ending a decades-long debate sparked by renowned physicist Steven Hawking. The team's work will be published in the 20 May 2008 issue of the journal Physical Review Letters.In the 1970s, Hawking showed that black...

8e1d0b5735b9bf4c27da8d7b303e6ccc1
2008-04-17 07:00:00

The U.S. Laser Interferometer Gravitational-wave Observatories (LIGO) is getting a $205 million upgrade by the National Science Foundation (NSF). Dubbed the "Advanced LIGO Project", the upgrade will enable the new field of gravitational wave astronomy. The National Science Board approved the seven-year project in its March 27 meeting, and the  NSF will provide an initial $32.75 million in funding this year via the Major Research Equipment and Facilities Construction (MREFC) budget...

3a9975fd5fd26aec54589b0f80de2b2e1
2008-04-15 16:35:00

But gravitational waves may be more sensitive probe of early universe physics than previously thoughtA team of researchers from Case Western Reserve University has found that gravitational radiation"”widely expected to provide "smoking gun" proof for a theory of the early universe known as "inflation""”can be produced by another mechanism. According to physics scholars, inflation theory proposes that the universe underwent a period of exponential expansion right after the big...

7d088cb4759b3356a8053ba490f0776f1
2008-04-08 15:55:00

The same team of astrophysicists that cracked the computer code simulating two black holes crashing and merging together has now, for the first time, caused a three-black-hole collision.Manuela Campanelli, Carlos Lousto and Yosef Zlochower"”scientists in Rochester Institute of Technology's Center for Computational Relativity and Gravitation"”simulated triplet black holes to test their breakthrough method that, in 2005, merged two of these large mass objects on a supercomputer...

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2008-02-10 15:38:21

Scientists hope that a new supercomputer being built by Syracuse University's Department of Physics may help them identify the sound of a celestial black hole. The supercomputer, dubbed SUGAR (SU Gravitational and Relativity Cluster), will soon receive massive amounts of data from the California Institute of Technology (Caltech) that was collected over a two-year period at the Laser Interferometer Gravitational-Wave Observatory (LIGO). LIGO is funded by the National Science Foundation and...


Latest General relativity Reference Libraries

Nature Physics
2012-05-18 15:50:42

Nature Physics is a peer-reviewed scientific journal established in 2005 and published monthly by the Nature Publishing Group. The editor-in-chief is Alison Wright, who is a full-time professional editor employed by the journal. The journal publishes original research, letters, full-length articles, review articles, news, views, physics research highlights, commentaries, book reviews, and correspondence. The main focus is pure and applied physics research, encompassing core physics...

General Relativity and Gravitation
2012-04-29 19:54:56

General Relativity and Gravitation is a peer-reviewed scientific journal published monthly since its establishment in 1970. It is published by Springer on behalf of the International Society on General Relativity and Gravitation. G.F.R. Ellis and H. Nicolai are the editors-in-chief. The journal covers modern gravitational physics, encompassing all theoretical and experimental aspects of general relativity and gravitation. The journal’s main goals include public outreach through teaching...

Foundations of Physics
2012-04-29 19:30:54

Foundations of Physics is a monthly-published journal devoted to the conceptual bases and fundamental theories of modern physics and cosmology, emphasizing the logical, methodological, and philosophical premises of modern physical theories and procedures. The journal publishes results and observations based on fundamental questions from all major fields of physics: quantum mechanics, quantum field theory, special relativity, general relativity, string theory, M-theory, cosmology,...

8_d060f6ab17568c81db54c0a009a2782b2
2004-10-19 04:45:44

String Theory -- A string theory is a physical model whose fundamental building blocks are extended objects (strings, membranes and higher-dimensional objects) rather than points. String theories are able to avoid problems, such as infinite energy density, associated with the presence of mathematical points in a physical theory. The term 'string theory' properly refers to both the 26 dimensional bosonic string theories and to the 10 dimensional superstring theories discovered by...

Spacetime
2004-10-19 04:45:42

Spacetime -- In special relativity and general relativity, time and three-dimensional space are treated together as a single four-dimensional manifold called spacetime (alternatively, space-time; see below). A point in spacetime may be referred to as an event. Each event has four coordinates (t, x, y, z). Just as the x, y, z coordinates of a point depend on the axes one is using, so distances and time intervals, invariant in Newtonian physics, may depend on the reference frame of an...

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Word of the Day
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  • Good cheer; viands.
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The word 'bellycheer' may come from 'belle cheer', "good cheer".
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