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Science

NASA announce first-ever 3-D STEREO images of Sun

posted onApril 23, 2007
by hitbsecnews

At 11 a.m. EDT, April 23, 2007, NASA presents the STEREO 3-D Press Conference, at the Goddard Space Flight Center, to show off new (first time ever) three-dimensional images of the Sun that were made by the twin STEREO spacecraft. Go to NASA?s website WATCH NASA TV NOW for access to the live conference.

Einstein was right: space and time bend

posted onApril 15, 2007
by hitbsecnews

Under his name in the Oxford English Dictionary is the simple definition: genius. Yet for decades physicists have been asking the question: did Albert Einstein get it wrong? After half a century, seven cancellations and $700m, a mission to test his theory about the universe has finally confirmed that the man was a mastermind - or at least half proved it.

T-rex tissue yields evolutionary clues

posted onApril 13, 2007
by hitbsecnews

US researchers have identified microscopic traces of soft tissue taken from a 68 million-year-old T-rex fossil in a startling discovery that is yielding clues to evolutionary links between dinosaurs and birds, a study released overnight said.

The tiny protein fragments were extracted from the leg bone of a Tyrannosaurus-rex that was discovered in the western state of Montana in 2003, but it wasn't until recently that scientists were able to definitively identify them as traces of prehistoric dinosaur collagen.

Light seems to pass through solid metal

posted onMarch 28, 2007
by hitbsecnews

Researchers directing a special type of light at metal poked with holes in irregular patterns recently discovered that all the light behaved like a liquid and fell across the metal to find its way through the escape holes.

That means the light was acting pretty weird. Picture shining a flashlight at your kitchen colander. While some of the light from the flashlight will travel through its holes, the solid part of the colander will keep much of the light from shining through.

Why the Human Brain Is a Poor Judge of Risk

posted onMarch 27, 2007
by hitbsecnews

The human brain is a fascinating organ, but it's an absolute mess. Because it has evolved over millions of years, there are all sorts of processes jumbled together rather than logically organized. Some of the processes are optimized for only certain kinds of situations, while others don't work as well as they could. There's some duplication of effort, and even some conflicting brain processes.

The race to 100 mpg

posted onMarch 19, 2007
by hitbsecnews

Over the past several decades, the promise of the "car of tomorrow" has remained unfulfilled, while the problems it was supposed to solve have only intensified.

The average price of a gallon of gas is higher than at any time since the early 1980s. The Middle East seems more volatile than ever. And even climate skeptics are starting to admit that the carbon we're pumping into the atmosphere might have disastrous consequences.

To these circumstances, automakers have responded with a fleet of cars that averages 21 miles per gallon, about 4 mpg worse than the Model T.

Subliminal advertising might actually work

posted onMarch 11, 2007
by hitbsecnews

University College London researchers have found the first physiological evidence that invisible subliminal images do attract the brain's attention on a subconscious level. The wider implication for the study, published in Current Biology, is that techniques such as subliminal advertising, now banned in the UK but still legal in the USA, certainly do leave their mark on the brain. Using fMRI, the study looked at whether an image you aren't aware of ?-- but one that reaches the retina -- has an impact on brain activity in the primary visual cortex, part of the occipital lobe.

Shuttle launch delayed, NASA bewares the ides of March?

posted onFebruary 28, 2007
by hitbsecnews

The planned March 15 date of the Atlantis Shuttle launch has been delayed after a massive thunderstorm and golf-ball sized hail caused damage to the external fuel tank on Monday.

Monday's storm was stronger than expected, delivering massive hail stones right onto the Shuttle at pad 39a, peppering the external fuel tank with hundreds of 'divots', or dents caused by hail stone impact.

Twelve-steps to curing e-mail addiction

posted onFebruary 21, 2007
by hitbsecnews

Alcoholics have one, and so do drug abusers. Now people addicted to e-mail also have a 12-step program designed to tackle their obsession.

An executive coach in Pennsylvania has devised a plan to teach people how to manage the electronic tool, which some users say can be as much an intrusive waste of time as it is fast-paced and efficient.

Solved: Einstein's Twin Paradox put back in the box

posted onFebruary 20, 2007
by hitbsecnews

One of the most enduring puzzles of modern-day physics is a century old paradox suggested by Einstein. Now Subhash Kak, a professor at the Louisiana State University LSU has claimed to have solved it! Through a news release at the LSU website, Subhash Kak, Delaune Distinguished Professor of Electrical and Computer Engineering at LSU, claims to have resolved Einstein?s Twin Paradox.