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News:
Physics
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November 2005
November 9
The
Illusion of Gravity
The force of gravity and one of the dimensions of space might be generated
out of the peculiar interactions of particles and fields existing in a lower-dimensional
realm.
Antineutrinos
emerge from within Earth (audio tape, Hugh Ross)
See also T. Araki et al., "Experimental
Investigation of Geologically Produced Antineutrinos with KamLAND,"
Nature436 (2005): 499-503.
Crossbar
Nanocomputers
A future generation of microchips might not need transistors but would instead
use crisscrossing wires only a few atoms thick.
September 2005
September 20
THEORY
OF EVERYTHING
Successful calculations about black holes and forces have given stunning
indications that our present approach to the theory of everything is the
right one, explains Lisa Randall.
New
Catalyst Produces Hydrogen from Water
The promise of a hydrogen economy, which would lessen dependence on nonrenewable
energy sources such as fossil fuels, hinges on the ability to produce and
store large amounts of the clean-burning element. New results from experiments
on a novel catalyst suggest that it can be used to coax hydrogen from water
without the need for severe reaction conditions.
August 2005
August 2
Watching
The Birth And Death Of Exotic Molecules
Researchers from Korea, Italy, France and the ESRF have just observed how
a molecule changes structure after being hit with a short flash of laser
light. Thanks to very intense pulses of X-rays.
Is it
a cosmic string or are we seeing double?
The case for the existence of cosmic strings has just been boosted - the
threads of energy could be the first sign of extra dimensions in the universe.
July 2005
July 20
Gravity
doughnut promises time machine
Movement into the past gets one step less improbable.
Fusion
energy: Just around the corner
For 50 years, physicists have been promising that power from nuclear fusion
is imminent. Now they are poised to build an experiment that could vindicate
their views. But will the machine work? Geoff Brumfiel investigates.
July 6
The
Mysteries of Mass
Physicists hunt for a field that permeates reality and lends mass to particles.
May 2005
May 30
Harvard,
Texas A&M Scientists Develop New Laser (May 31, 2005)
Engineers and applied physicists have laid the foundations for a new type
of "plug and play" laser -- the Raman injection laser -- and in
the process, several key innovations.
Lab
Simulator Packs Teaching Power Of Electron Microscope At The Expense Of
A Textbook
Kids have always had a fascination with the other-worldly images produced
by a scanning electron microscope (SEM): ants sitting on microchip picnic
tables, salt crystals in gritty detail, the scales of a butterfly wing.
Now, a team of researchers and educators has created a CD-ROM and Web-based
software to generate some of the capabilities--and teaching potential--of
an SEM using personal computers in a classroom.
May 16
Quantum
Black Holes
Ever since physicists invented particle accelerators, nearly 80 years ago,
they have used them for such exotic tasks as splitting atoms, transmuting
elements, producing antimatter and creating particles not previously observed
in nature. With luck, though, they could soon undertake a challenge that
will make those achievements seem almost pedestrian. Accelerators may produce
the most profoundly mysterious objects in the universe: black holes.
April 2005
April 11
Black
holes 'do not exist'
These mysterious objects are dark-energy stars, physicist claims.
Low-Temperature
Superconductivity Is Warming Up
Magnesium diboride is not merely an unexpectedly good superconductor. Properly
prepared, it outperforms the materials that are currently industrial favorites.
Picking On Einstein
Huntsville AL (SPX) Mar 29, 2005
This year marks the 100th anniversary of a revolution in our notions of
space and time. Before 1905, when Albert Einstein published his theory of
special relativity, most people believed that space and time were as Sir
Isaac Newton described them back in the 17th century.
LISA And The
Search For Elusive Gravity Waves Birmingham, UK (SPX) Apr 05, 2005
For almost 100 years, scientists have been searching for direct evidence
of the existence of gravity waves - faint ripples in the fabric of spacetime
predicted in Albert Einstein’s theory of General Relativity.
March 2005
March 29
Light Arises
From Relativity Violations Bloomington IN (SPX) Mar 22, 2005
Light as we know it may be a direct result of small violations of relativity,
according to new research scheduled for publication online Tuesday (March
22) in the journal Physical Review D.
Classic maths
puzzle cracked at last
The puzzle originated with a self-taught maths genius nearly a century ago
- the solution may lead to advances in physics and internet security.
March 8
Moonbeams Shine
On Einstein, Galileo And Newton Pasadena CA (JPL) Mar 07, 2005
Thirty-five years after Moon-walking astronauts placed special reflectors
on the lunar surface, scientists have used these devices to test Albert
Einstein's general theory of relativity to unprecedented accuracy.
Scientists Work
To Detect Mysterious Neutrinos Livermore CA (SPX) Mar 07, 2005
Livermore scientists are working to solve a 50-year-old question: Can neutrinos
– a particle that is relatively massless, has no electric charge yet
is fundamental to the make-up of the universe – transform from one
type to another?
February 2005
February 21
Back
to Square One
Government review repeats cold fusion conclusions.
January 2005
January 23
Copper Vs Copper
At The Relativistic Heavy Ion Collider Upton NY (SPX) Jan 17, 2005
Scientists searching for evidence that a particle accelerator at the U.S.
Department of Energy's Brookhaven National Laboratory has created a new
form of matter not seen since the Big Bang and eager to study its properties
have begun using a new experimental probe, collisions between two beams
of copper ions.