News tagged with theory
Shedding Light on the Cosmic Skeleton
Nov 03, 2009 |
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(PhysOrg.com) -- Astronomers have tracked down a gigantic, previously unknown assembly of galaxies located almost seven billion light-years away from us. The discovery, made possible by combining two of the ...
Growing online sales could lower prices, but also trim choices
Nov 02, 2009 |
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Shoppers could see lower prices but less variety to choose from as more manufacturers sell directly to consumers through the Internet, according to new research led by a University of Illinois business professor.
Laser-plasma accelerators ride on Einstein's shoulders
Nov 02, 2009 |
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Using Einstein's theory of special relativity to speedup computer simulations, scientists have designed laser-plasma accelerators with energies of 10 billion electron volts (GeV) and beyond. These systems, ...
Superstring theory useful for experimental physics
Oct 30, 2009 |
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Superstring theory aims to explain the laws of physics from extremely small strings in various states. Theoretical superstring theory is therefore normally not considered to be particularly relevant for practical ...
Gamma-ray photon race ends in dead heat; Einstein wins this round
Oct 28, 2009 |
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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 ...
Fermi Telescope Caps First Year With Glimpse of Space-Time (w/ Video)
Oct 28, 2009 |
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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 ...
Study Shows Time Traveling May Not Increase Computational Power
Oct 22, 2009 |
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(PhysOrg.com) -- For more than 50 years, physicists have been intrigued by the concept of closed time-like curves (CTCs). Because a CTC returns to its starting point, it raises the possibility of traveling backward in time. ...
Hunting for rhythm's DNA: Computational geometry unlocks a musical phylogeny
Other Sciences / Social Sciences
Oct 20, 2009 |
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(PhysOrg.com) -- Does Bo Diddley rule the world? Though he died last year, the iconic singer and guitarist of American blues and rock still rules the rhythms of the world, says computer scientist Godfried ...
Chinese scientists create metamaterial black hole
Oct 16, 2009 |
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(PhysOrg.com) -- Two physicists in China have used metamaterials to create the first artificial electromagnetic black hole. The scientists, Qiang Cheng and Tie Jun Cui from the Southeast University in Nanjing, ...
Forgotten treasures shed new light on Little Grey Rabbit author
Oct 12, 2009 |
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(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.
Physicists make discovery in quantum mechanics
Sep 23, 2009 |
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(Santa Barbara, Calif.) -- Physicists at UC Santa Barbara have made an important advance in quantum mechanics using a superconducting electrical circuit. The finding is reported in this week's issue of the journal Nature.
Sharing Scarce Flu Vaccine May Be Best: Game Theory Model Shows Hoarding Supplies Isn't Healthiest Choice
Sep 22, 2009 |
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(PhysOrg.com) -- As manufacturers race to test and deliver an H1N1 influenza vaccine by October, public health officials are working equally feverishly to determine how scarce doses should be allocated.
In brief: A tiny, tunable well of light, and a string theorist's toolbox
Sep 21, 2009 |
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Promising photonic devices, and theorists attempt to determine whether particle physics and string theory can be reconciled.
New vitamin K analysis supports the triage theory
Sep 17, 2009 |
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An important analysis conducted by Children's Hospital Oakland Research Institute scientists suggests the importance of ensuring optimal dietary intakes of vitamin K to prevent age-related conditions such as bone fragility, ...
Oddball stars explained
Sep 17, 2009 |
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(PhysOrg.com) -- New observations solve longstanding mystery of tipped rotation. In addition to shedding light on how binary stars form, the explanation knocks down a possible challenge to Einstein's theory ...
