Latest science news in Physics & Chemistry
New X-ray analysis spots early cavities
TAMIL NADU, India, Aug. 25 (UPI) -- Scientists in India say they have developed an X-ray technique that can detect very early signs of dental caries.
Even seaweeds get sunburned
Healthy red algae (Devaleraea ramentacea). It is red, it burns and itches: a sunburn on our skin. However, too much sun is not only bad for humans. Many plants react...
Engineering new uses for gold
The glitter of gold may hold more than just beauty, or so says a team of MIT researchers that is working on ways to use tiny gold rods to fight...
Shuttle´s mini PC goes easy on power consumption
Shuttle, the Taiwan-based computer manufacturer, has been known for making small computers, but its newest PC will be its tiniest and greenest yet.
Chemical Safety Board Plans Expansion
Denver is site of board's first regional accident investigation office
Physicists 'See' Single Top Quarks at the Tevatron
(PhysOrg.com) -- Scientists at the world's largest fully operating particle accelerator, the Tevatron at Fermi National Accelerator Laboratory (Fermilab) in Illinois, have discovered convincing evidence suggesting the existence of top...
MIT zeroes in on Alzheimer's structures
MIT engineers report a new computer-based approach to identifying protein structures key to Alzheimer's disease, an important step toward the development of new drugs that could prevent such structures from...
The Answer Is Blowing In The Wind
PopSci reader Dave wants to know: "Hello, if the earth spins east to west why does our wind blow west to east? The wind has to be blowing faster...
Gold's Hidden Value
When most people think of gold, they think of Fort Knox, or a phat set of grillz. The exceptionally nerdy -- like some people at popsci.com -- automatically recall gold's...
US scientists challenge UK over coal-fired power stations
The British government risks scuppering a global deal to cut emissions if it presses ahead with a new generation of dirty coal power, says a powerful coalition of US scientists...
Intel cuts electric cords with wireless power system
Intel on Thursday showed off a wireless electric power system that analysts say could revolutionize modern life by freeing devices from transformers and wall outlets.
Philip Geoffrey Saffman, 77; Caltech professor, leading expert on vortex dynamics
Philip Geoffrey Saffman, the former Theodore von Karman Professor of Applied Mathematics and Aeronautics at Caltech and a leading expert on vortex dynamics -- the study of how liquids and...
Converting Sunlight To Cheaper Energy
Scientists are working to convert sunlight to cheap electricity. They are working with new materials that can make devices used for converting sunlight to electricity cheaper and more efficient.
Spin-flip speed is pushed to the limit
Physicists discover a faster way to store data using spin-polarized electrons
Beyond Silicon's Elemental Logic
Great strides are being made toward the long-sought goal of constructing MOSFETs that are suitable for large-scale digital ICs using GaAs or similar III-V semiconductors.
FDA: Irradiating spinach, lettuce OK to kill germs
WASHINGTON (AP) -- Consumers worried about salad safety may soon be able to buy fresh spinach and iceberg lettuce zapped with just enough radiation to kill...
Crystal phases get ID’d
It is now easier to automatically ID crystal phases in zeolites, thanks to scientists in Spain
Manes, trains and antlers explained
For Charles Darwin, the problem of the peacock's tail, in light of his theory of natural selection, was vexing in the extreme.
Researchers Look for Ways to Bring Hydrogen Technology Home
You probably won't be able to drive down the highway in your own non-polluting vehicle that runs on hydrogen power any time soon. And don't start making plans to power...
Chemists manipulate fruit flavor enzymes
HOUSTON, Aug. 21 (UPI) -- If you'd like a lemony watermelon or strawberry-flavored banana you're in luck, with U.S. chemists saying they might soon be able to control...
Gold’s magic number
Gold nanocluster catalysts split oxygen molecules – but cluster size is crucial
Southampton Wind Tunnel Blows Gold In Beijing
Engineers using the University of Southampton's R J Mitchell wind tunnel have helped the British Cycling team win Gold in Beijing.
Structure Of Gold Nanoparticles Solved
Researchers have solved the structure of gold nanoparticles. Results of the study may yield important advances in medicine, biomolecule research and nanoelectronics.
Cars with a green conscience
A technology that uses hydrogen to reduce motor emissions could be on the market in three years, writes Michael Fitzpatrick
What's Inside a Planet?
The planets in our solar system contain a diverse array of ingredients. But there are a lot of common elements that go into them.
Today: a Butter Sculpture; Tomorrow: Sustainable Fuel
The New York State Fair's tribute to dairy farmers will end up in the fuel tanks of a college vehicle fleet.
The Future of Car Manufacturing? Sticky 'Velcro' Car Parts
(PhysOrg.com) -- It may sound improbable but plastic car parts could one day be joined together like Velcro, and peeled apart when it comes to recycling or disposal.
Unregulated nanoparticles from diesel engines inhibit lungs
(PhysOrg.com) -- Diesel engines emit countless carbon nanoparticles into the air, slipping through government regulation and vehicle filters. A new University of Michigan simulation shows that these nanoparticles can get...