News tagged with theory of gravity
Related topics: quantum mechanics
Physicists develop model that pushes limits of quantum theory, relativity
All of the matter in the universe -- everything we see, feel and smell -- has a certain predictable structure, thanks to the tiny electrons spinning around their atomic nuclei in a series of concentric shells or atomic levels. ...
Aug 03, 2010 |
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Time travel theory avoids grandfather paradox
(PhysOrg.com) -- The possibility of going back in time only to kill your ancestors and prevent your own birth has posed a serious problem for potential time travelers, not even considering the technical details ...
Jul 21, 2010 |
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Revised theory of gravity doesn't predict a Big Bang
(PhysOrg.com) -- The Big Bang theory has formed the basis of our understanding of the universe's origins since it was first proposed in 1927 by Georges Lemaitre. And for good reason: the theory is supported ...
Jul 12, 2010 |
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Quantum Sensor Developed by LSU Researcher Breaks New Limits
(PhysOrg.com) -- Researchers at Louisiana State University have invented an optical sensor that surpasses a quantum limit to sensitivity previously believed to be unbeatable. The breakthrough has a broad array of applications, ...
Mar 16, 2010 |
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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 ...
Mar 10, 2010 |
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Story of Newton's encounter with apple goes online
(AP) -- It always falls down. That's how the apple helped Isaac Newton.
Jan 18, 2010 |
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Gamma-ray photon race ends in dead heat; Einstein wins this round
Racing across the universe for the last 7.3 billion years, two gamma-ray photons arrived at NASA's orbiting Fermi Gamma-ray Space Telescope within nine-tenths of a second of one another. The dead-heat finish ...
Oct 28, 2009 |
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Fermi Telescope Caps First Year With Glimpse of Space-Time (w/ Video)
During its first year of operations, NASA's Fermi Gamma Ray Space Telescope mapped the extreme sky with unprecedented resolution and sensitivity. It captured more than one thousand discrete sources of gamma ...
Oct 28, 2009 |
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Forgotten treasures shed new light on Little Grey Rabbit author
(PhysOrg.com) -- A suffragette poem, penned by a world-famous children’s author and kept privately at a University of Manchester Hall of Residence for over a century, has been made available online.
Oct 12, 2009 |
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The Edge of a Black Hole
The existence of black holes is one of the most amazing and bizarre predictions of Einstein's theory of gravity. Despite his original misgivings about their reality, massive black hole holes are today believed ...
Aug 18, 2009 |
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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. ...
Aug 17, 2009 |
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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 ...
Aug 17, 2009 |
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Stephen Hawking expected to recover from infection
(AP) -- The family of physicist Stephen Hawking expects him to recover fully from a chest infection that has left him hospitalized, Cambridge University said Tuesday.
Apr 21, 2009 |
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Can R2 gravity explain dark matter?
(PhysOrg.com) -- "In many ways, the standard model of cosmology works very well," Jose Cembranos tells PhysOrg. "However, there are very basic features that we just do not know. We have dark energy and dark matter. They d ...
Apr 20, 2009 |
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Spacetime May Have Fractal Properties on a Quantum Scale
(PhysOrg.com) -- Usually, we think of spacetime as being four-dimensional, with three dimensions of space and one dimension of time. However, this Euclidean perspective is just one of many possible multi-dimensional ...
Mar 25, 2009 |
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