Physicists investigate how time moves forward
Sep 05, 2008 |
4.2 / 5 (154) |
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As humans, we have a very intuitive concept of time, and of the differences between the past, present, and future. But, as scientists Edward Feng of the University of California, Berkeley, and Gavin Crooks of the Lawrence ...
LHC switch-on fears are completely unfounded: new research paper
Sep 05, 2008 |
4.6 / 5 (35) |
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(PhysOrg.com) -- A new report published on Friday, 5 September, provides the most comprehensive evidence available to confirm that the Large Hadron Collider (LHC)'s switch-on, due on Wednesday next week, poses no threat to ...
Astronomer Discovers Upper Mass Limit for Black Holes
Sep 05, 2008 |
4.4 / 5 (49) |
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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.
Spiky Probe on NASA Mars Lander Raises Vapor Quandary
Space & Earth / Space Exploration
Sep 05, 2008 |
4.9 / 5 (10) |
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(PhysOrg.com) -- A fork-like conductivity probe has sensed humidity rising and falling beside NASA's Phoenix Mars Lander, but when stuck into the ground, its measurements so far indicate soil that is thoroughly ...
StellarWindow turns your laptop into a virtual planetarium
Electronics / Consumer & Gadgets
Sep 05, 2008 |
3.5 / 5 (12) |
1
If you enjoy looking at the stars, but get a little impatient trying to figure out which way to hold your star map to identify the constellations, a new software program may make things easier. Called StellarWindow, ...
How STDs increase the risk of becoming infected with HIV
Medicine & Health / HIV & AIDS
Sep 05, 2008 |
3.8 / 5 (5) |
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Individuals who have a sexually transmitted disease (e.g., genital herpes, gonorrhea, syphilis, and chlamydia) and women with yeast and bacterial vaginal infections have an increased risk of becoming infected with HIV if ...
Cassini Images Ring Arcs Among Saturn's Moons
Space & Earth / Space Exploration
Sep 05, 2008 |
4.7 / 5 (7) |
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(PhysOrg.com) -- NASA's Cassini spacecraft has detected a faint, partial ring orbiting with one small moon of Saturn, and has confirmed the presence of another partial ring orbiting with a second moon. This ...
Robot Scout: Fly Me (Safely) to the Moon
Space & Earth / Space Exploration
Sep 05, 2008 |
4.6 / 5 (20) |
1
The first attempt to land humans on the moon -- Apollo 11 -- was a triumph that almost ended in disaster. At just 400 feet from the lunar surface, with only about a minute's worth of fuel remaining, astronauts ...
Study: Behavior of Online Reviewers Affects Their Credibility
Sep 05, 2008 |
5 / 5 (2) |
1
(PhysOrg.com) -- Consumers increasingly rely on recommendations in online forums, such as Amazon.com and Angieslist.com, when deciding which products and services to buy. But, in most cases, they've never met the posters ...
Atomic structure of the mammalian 'fatty acid factory' determined
Biology /
Sep 05, 2008 |
4.5 / 5 (6) |
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Mammalian fatty acid synthase is one of the most complex molecular synthetic machines in human cells. It is also a promising target for the development of anti-cancer and anti-obesity drugs and the treatment of metabolic ...
1 step back ... 2 steps forward
Sep 05, 2008 |
4.6 / 5 (5) |
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Women with hormone-receptor positive, metastatic breast cancer may take medications for years to help keep their cancer at bay, but when the tumor becomes resistant to anti-hormonal drugs, treatment with chemotherapy becomes ...
Science paper examines role of aerosols in climate change
Sep 05, 2008 |
3.5 / 5 (11) |
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A group of scientists affiliated with the International Geosphere-Biosphere Programme (IGBP) have proposed a new framework to account more accurately for the effects of aerosols on precipitation in climate models. Their work ...
Lightweight and long-legged males go the distance for sex
Biology /
Sep 05, 2008 |
4.2 / 5 (6) |
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Finding a mate can take considerable legwork as recently illustrated by the flightless and nocturnal Cook Strait giant weta Deinacrida rugosa. This cricket relative is found in New Zealand and is one of the ...
Old sheep raising the baaa
Biology /
Sep 05, 2008 |
4.6 / 5 (5) |
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Populations of wild animals face the challenge of surviving in a changing climate. Researchers at Imperial College London and Université Claude Bernard Lyon have shown how a sheep population on a remote island ...
Disruption-free videos
Technology / Computer Sciences
Sep 05, 2008 |
4 / 5 (1) |
0
Standardized video coding techniques still have their snags -- digitally transmitted images are not always disruption-free. An extension of the H.264/AVC coding format allows to protect the most important data packets to ...
