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13,781 articles from Technology Review Feed - Tech Review Top Stories
Blog - ECG Signals Derived from Maxwell's Equations
For the first time, physicists have used Maxwell's equations to determine how organs produce bioelectric signals.
Scientists have been measuring the electrical activity in human organs for more than a hundred years. Today, electrocardiography, electroencephalography and electromyography give remarkable insight into diseases of the heart, brain and muscles respectively....
Dover House
Courtesy of: Wide World Photo, the MIT News Office, and the MIT Museum...
Video - Advanced Solar Technology
The CTO of Suntech explains the company’s advanced solar technology, and takes you inside the manufacturing facilities....
Video - Cyber Security and the Risk of Cyber War
Experts talk about the growing threat of cyber crime, espionage, and warfare, and how to thwart it....
Video - Printing Displays at HP
Researchers at HP are developing methods for printing high-performance, flexible, and lightweight displays on rolls of plastic....
MONDAY 21. JUNE 2010
Blog - Quantum Noise Breaks Random Number Generator Record
The quantum noise in a laser beam has been used to generate random numbers at the rate of 300 Mbits per second, breaking a record that stood for just a few days
Random numbers are useful beasts, in particular for cryptographers who use them to generate their codes....
Drug Targets Lupus by Tricking Immune System
A new approach shows early promise in fighting the devastating disease.
Scientists developing drugs to treat lupus face a daunting set of challenges. The disease, which affects 1.5 million Americans, results when the immune system mistakenly recognizes healthy tissues as dangerous and attacks them, touching off a range of responses. Some patients get arthritis and rashes, others develop heart...
SATURDAY 19. JUNE 2010
Blog - Coughs 'n' Sneezes
The best of the rest from the Physcis arXiv this week:
FRIDAY 18. JUNE 2010
Blog - Capturing "Hot" Electrons to Double Solar Power
Researchers demonstrate that high-energy electrons lost in conventional solar cells can be captured.
There's a limit on the conversion efficiency of a conventional solar cell. No matter how it's tweaked, it can only convert 31 percent of the light that hits it into usable electrical current. That's because there's a broad spectrum of wavelengths in sunlight, and some of it has...
Blog - Cellphone app aids oil-affected wildlife
An iPhone app helps people inform rescuers of wildlife affected by the Gulf oil spill....
Blog - Prostitution Unlikely To Cause HIV Epidemics
The surprising conclusion of a study of contacts between Brazilian prostitutes and their clients is that the network is unlikely to support the spread of HIV
When it comes to the study of sexually transmitted diseases, good data is hard to come by. Most is obtained either from interviews with a small number of people or by larger random surveys....
Investing in Banks of Stem Cells
Scientists are creating collections of reprogrammed stem cells to use for transplants and drug testing.
One of the great benefits of cell reprogramming--converting adult cells into stem cells--is the ability to capture an individual's genetic diversity. Scientists are now using this technology, known...
THURSDAY 17. JUNE 2010
Blog - A New Bubble for the Space Launch Industry?
Iridium boosts SpaceX, but will the industry repeat the communications satellite boom-and-bust of the 1990s?...
Blog - Deformable Liquid Mirrors Could Revolutionise Astronomy
Liquid mirrors are cheaper and easier to make than glass ones. Now a new prototype shows how they can also be deformed to make adaptive optics systems
Put a puddle of mercury into a bowl, set it spinning and the liquid will spread out in a thin film across the surface. The result is a concave mirror with a surface so smooth that it rivals anything that astronomers can make out of glass but at a...
WEDNESDAY 16. JUNE 2010
Blog - How to Prevent Language Extinction
Two third of the world's languages are endangered. Now a new mathematical model of language competition suggests how to combat the threat
The 7 billion inhabitants of Earth currently speak about 6000 different languages. That may seem a healthy multitude but it turns out that just five of these languages dominate. More than half the population speak English, Russian, Mandarin, Hindi and...
TUESDAY 15. JUNE 2010
Blog - Microsoft's "Exergames" Won't Make You Fit
But controller-free games can help depression and replace Phys-Ed teachers....
Blog - The Problem With Quantum Lithography
Entangled photons can dramatically reduce the feature sizes possible with lithography. At least, that's what physicists had hoped
Lithography, the ability to print patterns onto certain materials using light, is one of the enabling technologies of our age. The size of the features that can be defined this way are tiny, limited only by the wavelength of light used to make them, the so-called...
A More Fuel-Efficient Route Planner
Satellite navigation technology is focusing on reducing fuel consumption.
The last few years have seen some satellite navigation systems go from advising motorists of the fastest routes to recommending more fuel-efficient trips. Now...
Blog - How Twitter Helps in a Disaster
Usage during a recent disaster highlights features that make the service so compelling.
The evidence continues to pile up that...
MONDAY 14. JUNE 2010
Blog - Quantum Theory Separates Gravitational and Inertial Mass
The equivalence principle is one of the corner stones of general relativity. Now physicists have used quantum mechanics to show how it fails
The equivalence principle is one of the more fascinating ideas in modern science. It asserts that gravitational mass and inertial mass are identical. Einstein put it like this: the gravitational force we experience on Earth is identical to the force we would...
SATURDAY 12. JUNE 2010
Blog - Black 'n' White
The best of the rest from the Physics arXiv this week:
FRIDAY 11. JUNE 2010
Blog - Cape Cod is Tweeting, Thanks to the Internet of Things
NOAA's tide data isn't all that precise - so a motley crew of seafaring hardware hackers is replacing it with data from their own environmental sensors...
Blog - How To Destroy A Black Hole
Astrophysicists think they know how to destroy a black hole. The puzzle is what such destruction would leave behind...
Video - Microsoft’s New Display
Microsoft has developed a new type of wedge-shaped lens that precisely controls the direction of light emitted from it. The lens can easily be integrated into a liquid crystal display, and when a camera is added, the system is able to track viewers and project stereoscopic video directly into their eyes. In this demonstration, the system supports tow independent stereoscopic video projects....
THURSDAY 10. JUNE 2010
Blog - AI That Picks Stocks Better Than the Pros
A computer science professor uses textual analysis of articles from Yahoo Finance to beat the market.
The
ability to predict the stock market is, as any Wall Street quantitative trader (or quant) will tell you, a license to print money. So it should be of no small
interest to anyone who likes money that a new system that works in a radically
different way than previous automated trading schemes...