Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror
×

Submission + - Solved: why the Moon's far side looks so different 2

StartsWithABang writes: 55 years ago, the Soviet probe Luna 3 imaged the side of the Moon that faces away from us for the first time. Surprisingly, there were only two very small maria (dark regions) and large amounts of mountainous terrain, in stark contrast to the side that faces us. This remained a mystery for a very long time, even after we developed the giant impact hypothesis to explain the origin of the Moon. But a new study finally appears to solve the mystery, crediting the heat generated on the near side from a hot, young Earth with creating the differences between the two hemispheres.

Submission + - Cosmic Mystery Solved by Supersized Supernova Dust (discovery.com)

astroengine writes: How cosmic dust is created has been a mystery for some time. Although the textbooks tell us that the dusty stuff that builds the planets — and, ultimately, the complex chemistry that forms life (we are, after all, made of ‘star stuff’) — comes from supernova explosions, astronomers have been puzzled as to how delicate grains of dust condense from stellar material and how they can possibly survive the violent shock waves of the cataclysmic booms. But now, with the help of a powerful ground-based telescope, astronomers have not only watched one of these supernova ‘dust factories’ in action, they’ve also discovered how the grains can withstand the violent supernova shock. “When the star explodes, the shockwave hits the dense gas cloud like a brick wall,” said lead author Christa Gall, of Aarhus University, Denmark. “It is all in gas form and incredibly hot, but when the eruption hits the ‘wall’ the gas gets compressed and cools down to about 2,000 degrees. At this temperature and density elements can nucleate and form solid particles. We measured dust grains as large as around one micron (a thousandth of a millimeter), which is large for cosmic dust grains. They are so large that they can survive their onward journey out into the galaxy.” The surprising size of the measured dust particles means they can better survive the supernova's shockwave. This research has been published in the journal Nature.

Submission + - Thousands of leaked KGB files are now open to the public (cam.ac.uk)

schwit1 writes: Over 20 years after being smuggled out of Russia, a trove of KGB documents are being opened up to the public for the first time. The leaked documents include thousands of files and represent what the FBI is said to view as "the most complete and extensive intelligence ever received from any source." The documents include KGB information on secret Russian weapons caches, Russian spies, and KGB information on the activities of Pope John Paul II. Known as the Mitrokhin Archive, the files are all available as of today at Churchill College's Archives Centre.

Submission + - Radical Dual Tilting Blade Helicopter Design Targets Speeds of Over 270mph (gizmag.com)

Zothecula writes: As one of the contenders in the race to win a $100 billion contract from the US government for the next generation of attack helicopter in the Army’s Joint Multi-Role Technology Demonstrator (JMR-TD) program, AVX Aircraft Company has conceived a futuristic machine kitted out with coaxial rotors, ducted fans and a retractable undercarriage that could hit speeds of over 270 mph (435 km/h).

Submission + - Massive robbery in Samsung in Brazil (zdnet.com)

An anonymous reader writes: In an operation that resembled the 1978 Lufthansa heist made famous in Martin Scorsese's film Goodfellas, one of Samsung's key manufacturing plants has suffered a massive raid by criminals on Monday that has resulted in reported losses of about R$80 million ($36m).

Submission + - Michael J. Fox Donates $2M USD to a Finnish Medicine Company

jones_supa writes: Biotie Therapies from Turku, Finland has signed a USD 2 million research contract with The Michael J. Fox Foundation (MJFF) to investigate SYN120 in Parkinson's disease patients with dementia. SYN120 is a dual antagonist of 5-HT6 and 5-HT2a receptors and these two distinct modes of action could result in a unique therapeutic profile for SYN120 combining pro-cognitive and antipsychotic activities. MJFF will fund an 80 patient, Phase 2a, randomized, double-blind, placebo-controlled trial of 16 weeks duration in patients with Parkinson's disease dementia. In addition to assessing safety and tolerability, the main focus of the trial will be to establish efficacy of SYN120 on cognition using the Cognitive Drug Research (CDR) Computerized Cognition Battery as the primary efficacy endpoint. This trial, which is expected to begin in H2 2014, will be conducted by the Parkinson Study Group (PSG) at approximately 10 US sites specializing in cognitive dysfunction in Parkinson's disease.

Submission + - How An Intelligent Thimble Could Replace the Mouse In 3D Virtual Reality Worlds (technologyreview.com)

anguyen8 writes: The way in which humans interact with computers has been dominated by the mouse since it was invented in the 1960s by Doug Engelbert. A mouse uses a flat two-dimensional surface as a proxy for a computer screen. Any movements of the mouse over the surface are then translated into movements on the screen. These days, a mouse also has a number of buttons, and often scroll wheel, that allow interaction with on-screen objects.

The mouse is a hugely useful device but it is also a two-dimensional one. But what of the three-dimensional world and the long-standing, but growing, promise of virtual reality. What kind of device will take the place of the mouse when we begin to interact in three-dimensions?

Today, we get to see one idea developed at the University of Wyoming in Laramie by Anh Nguyen and Amy Banic. These guys have created an intelligent thimble that can sense its position accurately in three-dimensions and respond to a set of preprogrammed gestures that allow the user to interact with objects in a virtual three-dimensional world...

Slashdot Top Deals

Intel CPUs are not defective, they just act that way. -- Henry Spencer

Working...