The light treatment gives absolutely no benefit over bleaching without UV, and damages skin and eyes up to four times as much as sunbathing. Those looking to match Tom Cruise's glittering pearly-whites would be better off ignoring claims of better bleaching with UV light treatment. The treatment is at least as damaging to skin and eyes as sunbathing in a midsummer's afternoon - one lamp actually gave four times that level of radiation exposure... [more]
Source : Royal Society of Chemistry
UV light-enhanced tooth bleaching dangerous to your eyes and skin
Men smell of cheese women smell of onion
Scientists at Firmenich, a company in Geneva that researches flavours and smells for the food and perfume industry, took samples of armpit sweat from 24 men and 25 women after they had spent time in a sauna or 15 minutes on an exercise bike. It is thought the study could be used to develop deodorants aimed specifically at men or women... [more] & [more]
Source : Telegraph & New Scientist
NASA Mars Lander Sees Falling Snow, It’s snowing on Mars
Nasa's Phoenix Mars Lander has detected snow falling from Martian clouds. Spacecraft soil experiments also have provided evidence of past interaction between minerals and liquid water, processes that occur on Earth. The news of snow falling is just one piece of an extraordinary wealth of information that has recently been sent back from Mars by orbiters, landers and rovers. Together, they have mapped the surface in unprecedented detail... [more] & [more]
Source : Nasa & Guardian
Cows with a name produces more milk than one without
The study found that on farms where each cow was called by her name the overall milk yield was higher than on farms where the cattle were herded as a group. Just as people respond better to the personal touch, cows also feel happier and more relaxed if they are given a bit more one-to-one attention... [more]
Source : Newcastle University
Freed from Guantánamo Saudi Becomes Al Qaeda Chief In Yemen
The militant, Said Ali al-Shihri, is suspected of involvement in a deadly bombing of the United States Embassy in Yemen's capital, Sana, in September. He was released to Saudi Arabia in 2007 and passed through a Saudi rehabilitation program for former jihadists before resurfacing with Al Qaeda in Yemen... [more]
Source : IHT
Long-Distance Teleportation Between Two Atoms Achieved
For the first time, scientists have successfully teleported information between two separate atoms in unconnected enclosures a meter apart - a significant milestone in the global quest for practical quantum information processing. Teleportation may be nature's most mysterious form of transport: Quantum information, such as the spin of a particle or the polarization of a photon, is transferred from one place to another, without traveling through any physical medium... [more]
Source : University of Maryland
Joseph Nagyvary Secrets Of Stradivarius Unique Sound Revealed
Joseph Nagyvary, a professor emeritus of biochemistry, first theorized in 1976 that chemicals used on the instruments – not merely the wood and the construction – are responsible for the distinctive sound of these violins. Nagyvary obtained minute wood samples from restorers working on Stradivarius and Guarneri instruments (“no easy trick and it took a lot of begging to get them,” he adds). The results of the preliminary analysis of these samples, published in “Nature” in 2006, suggested that the wood was brutally treated by some unidentified chemicals. For the present study, the researchers burned the wood slivers to ash, the only way to obtain accurate readings for the chemical elements. They found numerous chemicals in the wood, among them borax, fluorides, chromium and iron salts... [more]
Source : Texas A&M University
Real and fake acupuncture effectively relieve the pain of headaches because of placebo effect
The effects of acupuncture could be mostly in the mind, scientists have revealed, after finding that placing needles close to the surface of the skin and away from traditional pressure points is almost as sucessful in relieving the pain of headaches. Sham acupuncture was almost as effective, scientists found. They believe that both contain a strong “placebo effect” which could fool patients into feeling better because they believe that they are receiving a successful treatment... [more]
Source : Telegraph
Injuries and repetitive heading of footballs, can football cause dementia?
IQ tests for footballers? It's not as daft as it sounds as Chelsea FC leads the way with a game plan that can help to safeguard against brain damage. It is the cumulative effect of such injuries, combined with the repetitive heading of footballs, that has long been thought to increase the risk of dementia in players... [more]
Source : Timesonline
Heart risk with antipsychotic drugs like Zyprexa Risperdal and Seroquel
Zyprexa, Risperdal and Seroquel, among the 10 most commonly prescribed medications, are just as likely as older antipsychotic drugs to cause a fatal heart attack, a study finds. he findings, which run contrary to a long-standing belief, add to a growing drumbeat of criticism about this class of drugs, known as atypical antipsychotics.
Zyprexa, Risperdal and Seroquel are among the 10 most commonly prescribed medications in the world, with annual sales estimated at $14.5 billion... [more]
Source : Los Angeles Times
Web Less Dangerous For Kids Than Feared Bullying By Bigger Threat Than Adult Sex Predators
A long awaited report from the Internet Safety Technical Task Force concludes that children and teens are less vulnerable to sexual predation than many have feared. The report also questions the efficacy and necessity of some commonly prescribed remedies designed to protect young people... [more] & [more]
Source : CBS News & Cyber Law Harvard
New Software Enable Invisibility-Cloak Breakthrough
David R. Smith of Duke and Tai Jun Cui of Southeast University, in Nanjing, China, led the work, which is a landmark in the field of metamaterials. Their cloak answers the naysayers who predicted that cloaks would always be narrowband and lossy. Even for physicists and engineers, the math involved in the theoretical design of cloaking devices is very difficult... [more]
Source : Technology Review
Female brain reacts to the sexual message of the male sweat
Everyone pretty well understands how people communicate through talking and facial expressions. But elsewhere in the animal kingdom, chemicals such as pheromones are commonly used to communicate, be it to attract a mate or warn a competitor. A woman may not consciously think of a man's sweat during intimate moments. But her brain appears to recognize the scent and the significance of the emotions it conveys right away... [more] & [more]
Source : Chron & Rice University
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