Light Source Lasts 12 Years - No Electricity Needed
Dec 13, 2007 |
4.5 / 5 (93) |
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A company called MPK is designing a light source that will glow continuously for more than 12 years without any additional energy.
Quality of Sleep Determines Where the Brain Stores Memories
Dec 13, 2007 |
4.5 / 5 (82) |
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As time passes, our memories are transferred to different parts of the brain in order to ideally store our past experiences. While scientists have known that sleep plays an important role in helping consolidate ...
Researchers discover second light-sensing system in human eye
Biology /
Dec 13, 2007 |
4.6 / 5 (56) |
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New research on blind subjects has bolstered evidence that the human eye has two separate light-sensing systems — one that perceives the familiar visual signals that allow us to see and a second, separate system that tells ...
Gliese 581: one planet might indeed be habitable
Dec 13, 2007 |
4.5 / 5 (45) |
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More than 10 years after the discovery of the first extrasolar planet, astronomers have now discovered more than 250 of these planets. Until a few years ago, most of the newly discovered exoplanets were Jupiter-mass, ...
Reversible data transfers from light to sound
Dec 13, 2007 |
4.7 / 5 (30) |
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As a step towards designing tomorrow's super-fast optical communications networks, a Duke University-led research team has demonstrated a way to transfer encoded information from a laser beam to sound waves and then back ...
Fish farms drive wild salmon populations toward extinction
Biology /
Dec 13, 2007 |
4.6 / 5 (17) |
2
A study appearing in the December 14 issue of the journal Science shows, for the first time, that parasitic sea lice infestations caused by salmon farms are driving nearby populations of wild salmon toward ...
Coral Reefs Unlikely to Survive in Acid Oceans
Dec 13, 2007 |
3.2 / 5 (22) |
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Carbon emissions from human activities are not just heating up the globe, they are changing the ocean’s chemistry. This could soon be fatal to coral reefs, which are havens for marine biodiversity and underpin ...
Stunning survey unveils new secrets of Caistor Roman town
Other Sciences / Archaeology & Fossils
Dec 13, 2007 |
4.6 / 5 (15) |
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On the morning of Friday July 20, 1928, the crew of an RAF aircraft took photographs over the site of the Roman town of Venta Icenorum at Caistor St Edmund in Norfolk, a site which now lies in open fields to the south of ...
Collaboration yields 'the right glasses' for observing mystery behavior in electrons
Dec 13, 2007 |
4.5 / 5 (15) |
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In collaboration with the Center for Integrated Nanotechnologies at Los Alamos, an international team of researchers has, for the first time, viewed on a nanoscale the formation of mysterious metallic puddles ...
Experiments reveal unexpected activity of fuel cell catalysts
Nanotechnology / Nanomaterials
Dec 13, 2007 |
3.7 / 5 (18) |
1
Researchers at the U.S. Department of Energy’s Brookhaven National Laboratory have unveiled important details about a class of catalysts that could help improve the performance of fuel cells. With the goal ...
Saturn's Rings May Be As Old As Solar System
Space & Earth / Space Exploration
Dec 13, 2007 |
4.6 / 5 (14) |
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New observations by NASA's Cassini spacecraft indicate the rings of Saturn, once thought to have formed during the age of the dinosaurs, instead may have been created roughly 4.5 billion years ago when the ...
MicroRNA regulates cancer stem cells
Biology /
Dec 13, 2007 |
4.6 / 5 (13) |
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One of the biggest stories in cancer research over the past few years has been, unexpectedly, stem cells. Not embryonic stem cells, but tumor stem cells. These mutated cells, which live indefinitely and can seed new tumors, ...
Panasonic Develops a Gallium Nitride (GaN) Power Transistor with Ultra High Breakdown Voltage over 10000V
Dec 13, 2007 |
3.9 / 5 (15) |
1
Panasonic today announced the development of a Gallium Nitride (GaN) power transistor with the ultra high breakdown voltage over 10000V. This breakdown voltage is more than 5 times higher than previously reported ...
Sshhh, it's listening: totally new computer interfaces
Technology / Computer Sciences
Dec 13, 2007 |
4.3 / 5 (13) |
0
Keyboards are a necessary part of today’s computers, right? Maybe not for much longer. A group of European scientists have used acoustic sensors to turn wooden tabletops and even three-dimensional objects ...
Immune system may target some brain synapses
Biology /
Dec 13, 2007 |
4.6 / 5 (11) |
0
A baby's brain has a lot of work to do, growing more neurons and connections. Later, a growing child's brain begins to pare down these connections until it develops into the streamlined brain of an adult.
