Measurement precision beats standard quantum limit
Apr 21, 2008 |
4.6 / 5 (62) |
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For physicists, measuring the precise magnitude of a physical quantity is a key to understanding quantum mechanics. However, there is a limit to how precise a measurement can be made, which is governed by quantum mechanical ...
Cancer cells spread by releasing 'bubbles'
Apr 21, 2008 |
4.7 / 5 (41) |
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A new fundamental mechanism of how tumour cells communicate has just been discovered by the team of Dr. Janusz Rak at the Research Institute of the McGill University Health Centre (MUHC) in collaboration with Dr Guha from ...
Chocolate bar shown to lower cholesterol
Apr 21, 2008 |
4.1 / 5 (35) |
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The results of a University of Illinois study have demonstrated an effective way to lower cholesterol levels – by eating chocolate bars.
Vitamin D in brain function
Apr 21, 2008 |
4.8 / 5 (29) |
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In a definitive critical review, scientists at Children’s Hospital & Research Center Oakland ask whether there is convincing biological or behavioral evidence linking vitamin D deficiency to brain dysfunction. Joyce C. McCann, ...
Researchers Create Self-Healing Computer Systems for Spacecraft
Apr 21, 2008 |
4.1 / 5 (32) |
2
We've all heard about the space missions that are DOA when NASA engineers lose touch with the spacecraft or lander. In other cases, some critical system fails and the mission is compromised.
An organizer for silicon
Apr 21, 2008 |
4.8 / 5 (26) |
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Organizers make life easier; aluminum could help the semi-conductor industry to convert silicon from a disordered to an ordered form at low temperatures. This crystalline silicon functions much more efficiently ...
Silicon nanotubes for hydrogen storage in fuel cell vehicles
Nanotechnology / Nanomaterials
Apr 21, 2008 |
3.8 / 5 (29) |
2
After powering the micro-electronics revolution, silicon could carve out an important new role in speeding the debut of ultra-clean fuel cell vehicles powered by hydrogen, researchers in China suggest.
Brain reacts to fairness as it does to money and chocolate
Medicine & Health / Psychology & Psychiatry
Apr 21, 2008 |
4.2 / 5 (25) |
4
The human brain responds to being treated fairly the same way it responds to winning money and eating chocolate, UCLA scientists report. Being treated fairly turns on the brain's reward circuitry.
'What can I, Robot, do with that?'
Technology / Computer Sciences
Apr 21, 2008 |
4.8 / 5 (13) |
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A new approach to robotics and artificial intelligence (AI) could lead to a revolution in the field by shifting the focus from what a thing is to how it can be used.
Questioning nuclear power's ability to forestall global warming
Apr 21, 2008 |
2.8 / 5 (22) |
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Rising energy and environmental costs may prevent nuclear power from being a sustainable alternative energy source in the fight against global warming, according to a study in the April 1 issue of ACS’ Environmental Sc ...
Computer scientists develop solutions for long-term storage of digital data
Technology / Computer Sciences
Apr 21, 2008 |
3.9 / 5 (15) |
4
Although the digital age is well under way, one crucial detail remains to be worked out--how to store vast amounts of digital information in a way that allows future generations to recover it.
The Antarctic deep sea gets colder
Space & Earth / Earth Sciences
Apr 21, 2008 |
4.7 / 5 (10) |
4
The Antarctic deep sea gets colder, which might stimulate the circulation of the oceanic water masses. This is the first result of the Polarstern expedition of the Alfred Wegener Institute for Polar and Marine ...
Chemists reproduce the rose's 'petal effect'
Apr 21, 2008 |
4.5 / 5 (10) |
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The lotus flower is nature’s “slip n’ slide,” where water beads skate along each petal’s surface like liquid metal. Now, chemists reveal the ying to the lotus’ frictionless yang: rose petals. Chemists have ...
What's not to like? Why fondness makes us poor judges, but dislike is spot-on
Apr 21, 2008 |
4.1 / 5 (11) |
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How good are we at guessing other people’s likes and dislikes? Ever bring a favorite dish to a potluck – only to watch it go uneaten? Or receive an unwelcome shock when a cherished product is discontinued for lack of sales? ...
Powerful antenna attached to NASA's GLAST satellite
Space & Earth / Space Exploration
Apr 21, 2008 |
4.1 / 5 (9) |
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The powerful antenna system that will enable NASA's Gamma-ray Large Area Telescope (GLAST) to communicate with stations on Earth has been successfully connected to the spacecraft in the Astrotech payload processing ...
