Astronomers discover upper mass limit for black holes
There appears to be an upper limit to how big the universe's most massive black holes can get, according to new research led by a Yale University astrophysicist.
There appears to be an upper limit to how big the universe's most massive black holes can get, according to new research led by a Yale University astrophysicist.
Astronomy
Sep 11, 2008
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(PhysOrg.com) -- A new simulation method recently developed by Stanford astrophysicist Marcelo Alvarez and Science Undergraduate Laboratory Internship student Patrick Ho spurns complexity to make headway in understanding ...
General Physics
Sep 11, 2008
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(PhysOrg.com) -- New theory work at the U.S. Department of Energy’s Thomas Jefferson National Accelerator Facility has shown that more than half of the spin of the proton is the result of the movement of its building blocks: ...
General Physics
Sep 11, 2008
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(PhysOrg.com) -- In Abraham Stroock's lab at Cornell, the world's first synthetic tree sits in a palm-sized piece of clear, flexible hydrogel -- the type found in soft contact lenses.
Sep 11, 2008
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(PhysOrg.com) -- Looking in detail at the composition of stars with ESO's VLT, astronomers are providing a fresh look at the history of our home galaxy, the Milky Way. They reveal that the central part of our Galaxy formed ...
Astronomy
Sep 11, 2008
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Researchers have achieved a milestone in materials science and electron microscopy by taking a high-resolution snapshot of the transformation of nanoscale structures.
Nanophysics
Sep 11, 2008
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(PhysOrg.com) -- NASA astronauts will need power sources when they return to the moon and establish a lunar outpost. NASA engineers are exploring the possibility of nuclear fission to provide the necessary power and taking ...
Space Exploration
Sep 11, 2008
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An analysis has been completed of the global carbon cycle and climate for a 70,000 year period in the most recent Ice Age, showing a remarkable correlation between carbon dioxide levels and surprisingly abrupt changes in ...
Earth Sciences
Sep 11, 2008
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When an electrical current passes through a wire it emanates heat - a principle that's found in toasters and incandescent light bulbs. Some materials, at low temperatures, violate this law and carry current without any heat ...
Superconductivity
Sep 11, 2008
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The Lake Tanganyika area, in southeast Africa, is home to nearly 130 million people living in four countries that bound the lake, the second deepest on Earth. Scientists have known that the region experiences dramatic wet ...
Earth Sciences
Sep 11, 2008
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