Carbon dioxide did not end the last Ice Age
Space & Earth / Earth Sciences
Sep 27, 2007 |
4.8 / 5 (59) |
3
Carbon dioxide did not cause the end of the last ice age, a new study in Science suggests, contrary to past inferences from ice core records.
New possibilities for boron nanotubes
Sep 27, 2007 |
4.2 / 5 (40) |
0
Even though some scientists have managed to grow boron nanotubes, the nature of their structure is unknown. Different theories have been proposed regarding boron nanotube make-up, but they often result in structures that ...
Quantum device traps, detects and manipulates the spin of single electrons
Sep 27, 2007 |
4.2 / 5 (39) |
0
A novel device, developed by a team led by University at Buffalo engineers, simply and conveniently traps, detects and manipulates the single spin of an electron, overcoming some major obstacles that have ...
Hair Untangles Woolly Mammoth Puzzle
Biology /
Sep 27, 2007 |
4.9 / 5 (28) |
0
Stephan C. Schuster and Webb Miller of Penn State University, working with Thomas Gilbert from Copenhagen and a large international consortium, discovered that hair shafts provide an ideal source of ancient ...
Nanowire generates power by harvesting energy from the environment
Sep 27, 2007 |
4.5 / 5 (30) |
0
As the sizes of sensor networks and mobile devices shrink toward the microscale, and even nanoscale, there is a growing need for suitable power sources. Because even the tiniest battery is too big to be used in nanoscale ...
Discovery challenges timeline of oxygen on Earth
Space & Earth / Earth Sciences
Sep 27, 2007 |
4.4 / 5 (29) |
1
Two multinational teams of scientists, including four researchers from Arizona State University, are reporting that traces of oxygen appeared in Earth’s atmosphere 50 to 100 million years before the “Great ...
Apple Goes One Better: iPod Touch 8GB & 16GB
Electronics / Consumer & Gadgets
Sep 27, 2007 |
2.5 / 5 (44) |
0
The Apple iPod Touch incorporates the features of iPhone to create a sleek and slim, music, TV, Web access and drive-in movie with the convenience of portability. The iPod Touch is only 8 millimeters wide ...
Using nanotubes to detect and repair cracks in aircraft wings, other structures
Nanotechnology / Nanomaterials
Sep 27, 2007 |
4.3 / 5 (23) |
0
Adding even a small amount of carbon nanotubes can go a long way toward enhancing the strength, integrity, and safety of plastic materials widely used in engineering applications, according to a new study.
Alcohol amount, not type -- wine, beer, liquor -- triggers breast cancer
Sep 27, 2007 |
4.5 / 5 (18) |
0
One of the largest individual studies of the effects of alcohol on the risk of breast cancer shows that it makes no difference whether a woman drinks wine, beer or spirits (liquor). It is the alcohol itself (ethyl alcohol) ...
The Frugal Cosmic Ant
Sep 27, 2007 |
4.1 / 5 (16) |
0
Using ESO's Very Large Telescope Interferometer and its unique ability to see small details, astronomers have uncovered a flat, nearly edge-on disc of silicates in the heart of the magnificent Ant Nebula. ...
Researchers double cell phone memory through software alone
Technology / Computer Sciences
Sep 27, 2007 |
3.8 / 5 (16) |
0
Cell phones are increasingly sophisticated -- sporting such features as cameras, music players, games, video clips, Internet access and, lest we forget, the capability to phone someone -- but these features come at a price: ...
Dawn Spacecraft Lifts Off
Space & Earth / Space Exploration
Sep 27, 2007 |
4 / 5 (14) |
0
The Dawn spacecraft thundered off the launch pad aboard a Delta II rocket on the first part of its journey to the asteroid belt.
Nanoparticles Yield Safer Light-Activated Cancer Therapy
Nanotechnology / Bio & Medicine
Sep 27, 2007 |
4.5 / 5 (12) |
0
Photodynamic therapy, in which light activates a chemical known as a photosensitizer, triggering the production of cell-killing reactive oxygen, has proven itself as an effective therapy for a limited number of cancers.
Individual differences caused by shuffled chunks of DNA in the human genome
Sep 27, 2007 |
4.7 / 5 (11) |
0
A study by Yale researchers offers a new view of what causes the greatest genetic variability among individuals — suggesting that it is due less to single point mutations than to the presence of structural ...
New Cambridge University star catalogue 'most accurate ever'
Sep 27, 2007 |
4.5 / 5 (11) |
0
For thousands of years, people all over the world have gazed at the night sky and wondered just how far they would have to travel to reach the stars.
