Atmospheric methane stable; fastest spinning black hole, etc.
Date: Tuesday, November 21, 2006 @ 22:41:20 UTC
Topic: General
LEVEL OF IMPORTANT GREENHOUSE GAS HAS STOPPED GROWING, November 20
Scientists at UC Irvine have determined that levels of atmospheric methane -- an
influential greenhouse gas -- have stayed nearly flat for the past seven years,
which follows a rise that spanned at least two decades.
Full story at http://www.physorg.com/news83255550.html
SPINNING BLACK HOLE PUSHES THE LIMIT, November 20
The existence of black
holes is perhaps the most fascinating prediction of Einstein's General Theory of
Relativity. When any mass, such as a star, becomes more compact than a certain
limit, its own gravity becomes so strong that the object collapses to a singular
point, a black hole. In the popular mind, this immense gravity well is a place
where strange things happen. And now, a Center for Astrophysics-led team has
measured a stellar-mass black hole spinning so rapidly - turning more than 950
times per second - that it pushes the predicted speed limit for
rotation.
Full story at http://www.physorg.com/news83254302.html
SUPERCOMPUTER
STUDY SHOWS MILKY WAY'S HALO OF DARK MATTER IN UNPRECEDENTED DETAIL, November 20
Researchers at the University of California, Santa Cruz, have used NASA's
most powerful supercomputer to run the largest simulation to date of the
formation and evolution of the dark matter halo that envelopes the Milky Way
galaxy. Their results show substructures within the halo in unprecedented
detail, providing a valuable tool for understanding the evolutionary history of
our galaxy.
Full story at http://www.physorg.com/news83267160.html
BIG MAGNET READY TO FACE THE BIG QUESTIONS OF THE UNIVERSE, November 20
The
largest superconducting magnet ever built has successfully been powered up to
its operating conditions at the first attempt. Called the Barrel Toroid because
of its shape, this magnet is a vital part of ATLAS, one of the major particle
detectors being prepared to take data at CERN's Large Hadron Collider (LHC), the
new particle accelerator scheduled to turn on in November 2007.
Full story at
http://www.physorg.com/news83250895.html
NEW SPIN ON ELECTRONS COULD IMPROVE LIGHTS, OTHER DEVICES, November 20
Troy
Van Voorhis likes to watch how things work. This natural curiosity led to his
current research on the behavior of electrons and how they function in various
molecular systems, including artificial photosynthesis. The theories and
simulations he and his team create may help lead to improvements in devices such
as electronics, solar cells and lighting.
Full story at http://www.physorg.com/news83256032.html
POLL: CLIMATE CHANGE WORRIES EUROPEANS, November 21
A poll conducted across
the United Kingdom, Italy, Germany and Spain has found Europeans ready to accept
lifestyle restrictions to fight global warming.
Full story at http://www.physorg.com/news83346275.html
GLOBAL WARMING SAID KILLING SOME SPECIES, November 21
(AP) -- Animal and
plant species have begun dying off or changing sooner than predicted because of
global warming, a review of hundreds of research studies contends.
Full story
at http://www.physorg.com/news83324462.html
NATIONS SIGN NUCLEAR FUSION REACTOR PACT, November 21
(AP) -- Nations
representing half the world's population signed a long-awaited, $12.8 billion
pact Tuesday for a nuclear fusion reactor that could revolutionize global energy
use for future generations.
Full story at http://www.physorg.com/news83324118.html
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