News tagged with general relativity

Related topics: black holes

Our universe at home within a larger universe? So suggests wormhole research

(PhysOrg.com) -- Could our universe be located within the interior of a wormhole which itself is part of a black hole that lies within a much larger universe?

Physics / General Physics

created Apr 06, 2010 | popularity 4.6 / 5 (81) | comments 77 | with audio podcast

NSF grant to IU researcher funds study of 'fundamental length'

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 ...

Physics / General Physics

created Mar 23, 2010 | popularity 3.8 / 5 (10) | comments 21 | with audio podcast

Study validates general relativity on cosmic scale, existence of dark matter

(PhysOrg.com) -- An analysis of more than 70,000 galaxies by University of California, Berkeley, University of Zurich and Princeton University physicists demonstrates that the universe - at least up to a distance ...

Physics / General Physics

created Mar 10, 2010 | popularity 4.6 / 5 (28) | comments 37 | with audio podcast

Einstein's theory of relativity on display for first time

In a darkened room in Jerusalem, the world was given a rare glimpse Sunday into the mind of Albert Einstein as he worked to unlock the secrets of the universe.

Physics / General Physics

created Mar 07, 2010 | popularity 4.3 / 5 (10) | comments 15

West Virginia Student Discovers New Pulsar

(PhysOrg.com) -- A West Virginia high-school student has discovered a new pulsar, using data from the giant Robert C. Byrd Green Bank Telescope (GBT).

Space & Earth / Space Exploration

created Jan 22, 2010 | popularity 4.7 / 5 (6) | comments 0

Does weak equivalence break down at the quantum level?

(PhysOrg.com) -- One of the givens in physics is the weak equivalence principle. This principle has been considered solid since Einstein proposed that it is not possible to detect the difference between uniform acceleration ...

Physics / General Physics

created Dec 08, 2009 | popularity 4.5 / 5 (26) | comments 19 feature

A line on string theory

(PhysOrg.com) -- A Harvard theoretical physicist has discussed with scientists at the Large Hadron Collider in Switzerland the possibility that they may discover a theorized "stau" particle, with a lifetime ...

Physics / General Physics

created Nov 12, 2009 | popularity 4.7 / 5 (47) | comments 15

Precise Radio-Telescope Measurements Advance Frontier Gravitational Physics

(PhysOrg.com) -- Scientists using a continent-wide array of radio telescopes have made an extremely precise measurement of the curvature of space caused by the Sun's gravity, and their technique promises a ...

Physics / General Physics

created Sep 01, 2009 | popularity 4.5 / 5 (12) | comments 7

Rewriting general relativity? Putting a new model of quantum gravity under the microscope

Does an exciting but controversial new model of quantum gravity reproduce Einstein's theory of general relativity? Scientists at Texas A&M University in the US explore this question in a paper appearing in ...

Physics / Quantum Physics

created Aug 24, 2009 | popularity 4.2 / 5 (17) | comments 9

Vanquishing infinity: Old methods lead to a new approach to finding a quantum theory of gravity

Quantum mechanics and Einstein's theory of general relativity are both extremely accurate theories of how the universe works, but all attempts to combine the two into a unified theory have ended in failure. ...

Physics / Quantum Physics

created Aug 17, 2009 | popularity 4.2 / 5 (13) | comments 2

New Law of Physics Could Explain Quantum Mysteries

(PhysOrg.com) -- Since the early days of quantum mechanics, scientists have been trying to understand the many strange implications of the theory: superpositions, wave-particle duality, and the observer’s ...

Physics / Quantum Physics

created Aug 17, 2009 | popularity 4.5 / 5 (98) | comments 162 feature

Testing relativity in the lab

Even Albert Einstein might have been impressed. His theory of general relativity, which describes how the gravity of a massive object, such as a star, can curve space and time, has been successfully used to ...

Physics / General Physics

created Jul 20, 2009 | popularity 4.7 / 5 (14) | comments 25

Researcher Investigates the Basis of Einstein's First Approximation in the Theory of Relativity

(PhysOrg.com) -- In his discussion of accelerated motion on page 60 of The Meaning of Relativity, Albert Einstein made an approximation that allowed him to develop the theory of relativity further. Einstein apparently never ...

Physics / General Physics

created Jul 15, 2009 | popularity 4.1 / 5 (23) | comments 41

Celebrating gravity’s light-bending landmark

(PhysOrg.com) -- Today Oxford University scientists are joining in a special celebration of the first test of Albert Einstein’s theory of gravity on the remote African island where the ground-breaking experiment ...

Physics / General Physics

created May 29, 2009 | popularity 3.7 / 5 (7) | comments 1

LIDAR system offers peerless precision in remote measurements

By combining the best of two different distance measurement approaches with a super-accurate technology called an optical frequency comb, researchers at the National Institute of Standards and Technology have built a laser ...

Physics / Optics & Photonics

created May 24, 2009 | popularity 5 / 5 (10) | comments 1