Thursday, April 15, 2010

Entangle Qubits For A True Random Number Machine

From New Scientist:

PURE randomness is surprisingly difficult to create, even if you draw on the inherent randomness of quantum mechanics. Now, though, a "true" random number generator is on the cards, which may help create the ultimate cryptographic messages.

Existing quantum random number generators are only as reliable as their parts. For example, some devices send single photons through a beam-splitter and record the path taken, but a pattern could emerge over time if the beam-splitter comes to favour one direction or the materials degrade. A new number generator produces random strings of numbers without the worry of such flaws, because it relies on the inherently random behaviour of two quantum-entangled objects.

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Evidence Of First Virus That Infects Both Plants And Humans

Tree Afflicted With Chestnut Blight Don't worry. Far as anyone knows, blight still isn't contagious for humans. James Bowe, via Flickr.com

From Popular Science:


From rabies to bird flu to HIV, diseases passing from animals to humans is a well-known phenomenon. But a virus jumping from plants to humans? Never. At least, that's what doctors thought until Didier Raoult of the University of the Mediterranean in Marseilles, France, discovered that the mild mottle virus found in peppers may be causing fever, aches, and itching in humans. If validated, this would mark the first time a plant virus has been found to cause problems in people.

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Cockroach Ancestor Predates Dinosaurs

(Credit: Imperial College London and the Natural History Museum)

From Discovery News:

If it seems like cockroaches have been around forever, they nearly have. Check out this 300-million-year-old cockroach ancestor that lived several million years before the world's first dinosaurs emerged.

A new 3-D virtual model of the insect is described in the journal Biology Letters.

Imperial College London scientists created the model, which you'll view shortly, to show all of the details on Archimylacris eggintoni, which is an ancient ancestor of modern cockroaches, mantises and termites. This insect scuttled around early forests during the Carboniferous period 359 - 299 million years ago, which was a time when life had recently emerged from the oceans to live on land.

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Wednesday, April 14, 2010

Solar Explosion Tracked All The Way From The Sun To Earth

The Sun imaged with the EIT instrument on the SOHO spacecraft. The eruption event studied by the team originated in the brighter active region slightly above and to the left of centre. (Credit: CDAW/ESA/NASA/Solar Physics)

From Science Daily:

ScienceDaily (Apr. 14, 2010) — An international group of solar and space scientists has built the most complete picture yet of the full impact of a large solar eruption, using instruments on the ground and in space to trace its journey from the Sun to Earth.

Dr Mario Bisi of Aberystwyth University presented the team's results, which include detailed images, on the 13th of April at the RAS National Astronomy Meeting in Glasgow.

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Why Women Stay In Abusive Relationships

From Live Science:

A new study provides insights into the behavior of women entrenched in an abusive relationship with their male partner.

Researchers discovered that many who live with chronic psychological abuse still see certain positive traits in their abusers — such as dependability and being affectionate — which may partly explain why they stay.

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Stellar 'Pollution' May Be Remains Of Watery Planets

Sucking up rocky pollutants (Image: NASA/JPL-Caltech)

From New Scientist:

A lost generation of planets may now be no more than a whiff of pollution in the atmospheres of their dead parent stars. If so, it would suggest that rocky planets are common, and hints that most such planets have water.

White dwarfs – the dense remnants of ordinary stars – usually have very pure atmospheres dominated by the lightweight elements hydrogen and helium, because heavier elements tend to sink into a star's interior. But about 20 per cent of white dwarfs are tainted by traces of heavier elements.

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Jumbo Planets Spotted Orbiting Backwards Around Nearby Stars

ESO/L. Calçada

From USA Today:

Wrong way planets -- two of nine jumbo planets reported Tuesday by European astronomers -- orbit opposite their star's rotation, unlike our own solar system.

The discovery means six of 27 "hot Jupiters", gas giant worlds orbiting close-in to their stars reported in recent years by the Wide Angle Search for Planets (WASP) team, orbit the wrong way around stars. The WASP team searches for "transit" planets, ones that cause dips in the light from their stars, revealing their orbit's characteristics.

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Facebook Announces New Safety Measures But No Panic Button

From The Guardian:

The social networking site will introduce a 24-hour police hotline, awareness campaign and a new system of reporting abuse.

Facebook has responded to calls for increased online safety by announcing a range of new measures including a 24-hour police hotline, a £5m education and awareness campaign and a redesigned abuse reporting system, but has declined to add a logo linking to the Child Exploitation and Online Protection Centre.

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Can The Mobile Phone Chips Of The Future Kill The Desktop Computer?

Texas Instruments Blaze TI's reference design runs two touchscreen monitors at once. TI

From Popular Science:

If you have a smartphone, you're just as likely to Google from your handset as you are from a PC-based Web browser. That's because, in some cases, a high-end smartphone is just as powerful and rich a media experience as a computer. The pocketable, always-on, always-connected computer has long been the dream, and now, it's the reality. But the next generation of mobile phone brains promises to take the smartphone paradigm even further--maybe even so far that it replaces your desktop machine.

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Mummy Of A 'Tiny, Wide-Eyed Woman' Discovered In Egyptian Oasis

A gypsum mask unearthed alongside a sarcophagus recently discovered in Bahariya

From The Daily Mail:

Egyptian archaeologists discovered an intricately carved plaster sarcophagus portraying a tiny, wide-eyed woman dressed in a tunic in a newly uncovered complex of tombs at a remote desert oasis.

It is the first Roman-style mummy found in Bahariya Oasis some 186 miles southwest of Cairo, said archaeologist Mahmoud Afifi, who led the dig.

The find was part of a cemetery dating back to the Greco-Roman period containing 14 tombs.

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The Rise Of The App Entrepreneur

From The BBC:

The soaring popularity of smart phones has created a new type of entrepreneur - the "app developer".

Whether it is finding ladies' toilets on the London underground, identifying bird songs, forecasting snow conditions at ski resorts or just buying stuff online, somebody, somewhere has come up with a clever little computer program that lets you do the task from your handset.

The industry has grown up around the iPhone. More than 140,000 different iPhone applications have appeared since Apple opened its Apps Store on iTunes to outside developers in July 2008.

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Twitter Has 105M Users, Says Co-Founder Biz Stone

From Computer World:

IDG News Service - Twitter co-founders Biz Stone and Evan Williams shared some long-awaited usage figures for the service and sought to assure developers that Twitter is becoming a stable platform for building applications, as they kicked off its first developer conference today in San Francisco.

Twitter has 105 million registered users, with 300,000 new users signing up every day, Stone said, opening Twitter's Chirp conference at the Palace of Fine Arts before an audience just shy of 1,000 developers. That user figure is more than a recent estimate from comScore, which pegged Twitter's user base at 65 million.

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Are Water Filters Worth It?

From Discovery News:

As clean as the drinking water is in the United States compared to other countries, it still contains trace amounts of cancer-causing contaminants.

But this past March, the Environmental Protection Agency (EPA) announced that advances in science and technology were allowing them to define stricter regulations on four chemicals: tetrachloroethylene and trichloroethylene, which are used in industrial and textile processing, and epichlorohydrin and acrylamide, which ironically can be introduced into drinking water during the water treatment process.

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Your Bionic Brain: The Merging Of Brain And Machine

Flickr/illuminaut

From FOX News:

The six-million dollar man was pure fantasy in the 70s -- but largely realistic technology today. And the future of this tech is even wilder: Implantable brain electrodes may be just around the corner.

Futurists and science-fiction writers have long speculated about merging human and machine, especially human brains and computers. These dreams are slowly becoming reality: The deaf are hearing with bionic "ears," the blind see with the aid of electrodes, an amputee is moving a prosthetic arm by thought, a man paralyzed with locked-in syndrome is "speaking" through a brain electrode connected to a computerized synthesizer.

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First Direct Recording Made Of Mirror Neurons In Human Brain

Mirror neurons, many say, are what make us human. (Credit: Image courtesy of University of California - Los Angeles)

From Science Daily:

ScienceDaily (Apr. 13, 2010) — Mirror neurons, many say, are what make us human. They are the cells in the brain that fire not only when we perform a particular action but also when we watch someone else perform that same action.

Neuroscientists believe this "mirroring" is the mechanism by which we can "read" the minds of others and empathize with them. It's how we "feel" someone's pain, how we discern a grimace from a grin, a smirk from a smile.

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U.S. Military Supply of Rare Earth Elements Not Secure

From Live Science:

U.S. military technologies such as guided bombs and night vision rely heavily upon rare earth elements supplied by China, and rebuilding an independent U.S. supply chain to wean the country off that foreign dependency could take up to 15 years, according to a new report by the U.S. Government Accountability Office (GAO).

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Polluted Old Stars Suggest Earth-like Worlds May Be Common

From Space.com:

Earth-like planets should be a fairly common feature of other solar systems in our galaxy, a new study of stellar senior citizens suggests.

More than 90 percent of stars in the Milky Way, including our own sun, end their lives as a white dwarfs. Traditionally, these dense stellar remains haven't been the first place that astronomers look for signs of planets outside our own solar system. Instead, exoplanet searches have focused on stars like our own sun.

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Mysterious Radio Waves Emitted From Nearby Galaxy

Something in there is producing an unusually regular radio signal
(Image: NASA/ESA/STScI/AURA)


From New Scientist:

There is something strange in the cosmic neighbourhood. An unknown object in the nearby galaxy M82 has started sending out radio waves, and the emission does not look like anything seen anywhere in the universe before.

"We don't know what it is," says co-discoverer Tom Muxlow of Jodrell Bank Centre for Astrophysics near Macclesfield, UK.

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First Man On The Moon Neil Armstrong Blasts Obama's Space Plans



Neil Armstrong Blasts Obama’s ‘Devastating’ Nasa Cuts -- Times Online

Neil Armstrong, the first man on the Moon, has launched an unprecedented attack on President Obama’s plans to dismantle Nasa’s manned space exploration programme.

The world’s best-known astronaut, who has traditionally avoided controversy and rarely seeks the limelight despite his feat 41 years ago, warned that Mr Obama risks blasting American space superiority on a “long downhill slide to mediocrity”.

The decision to cancel Constellation, the project to send astronauts to the Moon again by 2020 and Mars by 2030, was “devastating”, Mr Armstrong said in a powerful open letter to the President.

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More News On Protests Against President Obama's NASA Plans

Space Fight: President Obama's Plans for NASA Attacked By Former Astronauts -- ABC News
Moon vets say Obama's NASA cuts would ground U.S. -- USA Today
White House Moves to Placate Critics of its NASA Plan -- Wall Street Journal
Put NASA on a Diet?! Them's Fightin' Words, Mr. President -- Newsweek
Obama's Revised Space Plan: Build Rocket, Save Orion -- NPR

iPad International Launch Delayed As Apple Blames 'Runaway' Demand

Apple's iPad shipped more than half a million units in its first week, the company says. Photograph: Justin Sullivan/Getty Images

From The Guardian:

Apple iPad pre-orders to begin internationally on 10 May, with pricing to be revealed then, after 'surprisingly strong' US orders.

Apple has delayed the international launch of its iPad computer for a month, blaming "surprisingly strong US demand" that has outstripped its ability to produce them.

More than 500,000, it says, have been delivered to retailers and customers in its first week on sale.

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