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Catch up on stories from the past week (and beyond) at the Slashdot story archive

Japan

Little Health Risk Seen From Fukushima's Radioactivity 191

Posted by Soulskill
from the how-do-we-scare-people-with-this-information dept.
gbrumfiel writes "Two independent reports show that the public and most workers received only low doses of radiation following last year's meltdowns at the Fukushima Daiichi nuclear power plant in Japan. Nature reports that the risks presented by the doses are small, even though some are above guidelines and limits set by the Japanese government. Few people will develop cancer as a result of the accident, and those that do may never be able to conclusively link their illness to the meltdowns. The greatest risk lies with the workers who struggled in the early days to bring the reactors under control. So far no ill-effects have been detected. At Chernobyl, by contrast, the highest exposed workers died quickly from radiation sickness."
Moon

Russia To Establish Bases On the Moon 242

Posted by timothy
from the reopening-the-tang-mines dept.
ananyo writes "Vladimir Popovkin, the head of Roscosmos, the Russian space agency, has said that Russia will pursue extensive, long-lived operations at the Moon's surface. 'We're not talking about repeating what mankind achieved 40 years ago,' Popovkin said, through a translator at the Global Space Exploration Conference in Washington DC. 'We're talking about establishing permanent bases.' The heads of the space agencies for Europe, Canada and Russia, along with senior representatives from the space agencies of India and Japan were in Washington DC talking about the benefits of international collaboration. JAXA, the Japanese Space Agency, also issued a clear pronouncement about targeting the Moon."
Japan

Japanese Researchers Transmit 3Gbps Using Terahertz Frequencies 134

Posted by samzenpus
from the greased-lightning dept.
MrSeb writes "Researchers at the Tokyo Institute of Technology have developed a new wireless transmission system that works above all currently regulated spectrum frequencies. The new system works at the range of 300GHz to 3THz (terahertz), which is the Far Infrared (FIR) frequencies of the infrared spectrum. That spectrum is currently totally unregulated by any country or standards organization in the world, making it ripe for development of new technologies. So far the Japanese researchers have transmitted data at 3Gbps, but in theory speeds of up to 100Gbps should be possible."
Japan

Jars of Irradiated Russian Animals Find a New Purpose 86

Posted by Unknown Lamer
from the osha-radiation-guidelines-for-zone-trippers dept.
scibri writes with bits and pieces from the article: "From the early 1950s to the end of the cold war, nearly 250,000 animals were systematically irradiated in the Russian town of Ozersk. Fearful of a nuclear attack by the United States, the Soviet Union wanted to understand how radiation damages tissues and causes diseases such as cancer. Now, these archives have become important to a new generation of radiobiologists, who want to explore the effects of the extremely low doses of radiation — below 100 millisieverts — that people receive during medical procedures such as computed-tomography diagnostic scans, and by living close to the damaged Fukushima nuclear reactors in Japan."
Japan

Japan's Last Nuclear Reactor Shuts Down 452

Posted by timothy
from the punctuated-equilibrium dept.
AmiMoJo writes "Japan's last active reactor is shutting down today, leaving the country without nuclear energy for the first time since 1970. All 50 commercial reactors in the country are now offline. 19 have completed stress tests but there is little prospect of them being restarted due to heavy opposition from local governments. Meanwhile activists in Tokyo celebrated the shutdown and asked the government to admit that nuclear power was no longer needed in Japan and to concentrate on safety. If this summer turns out to be as hot as 2010 some areas could be asked to make 15% power savings to avoid shortages, while other areas will be unaffected due to savings already made."
Earth

Satellite System Will Speed Up Tsunami Warnings 8

Posted by Soulskill
from the wave-of-the-future dept.
ananyo writes "NASA and a group of universities known as the READI network have begun testing an earthquake-warning system based on satellite data from the Global Positioning System. The method could have allowed Japanese officials to issue accurate warnings of the deadly March 2011 earthquake and tsunami ten times faster than they did, say scientists. The system is currently being tested using the U.S. Pacific Northwest Geodetic Array: hundreds of GPS receivers placed along the North American coast between Northern California and British Columbia in Canada. While conventional seismometers provide similar information, they run into trouble with earthquakes of magnitude 7 or higher. This is partly because in big quakes, the ground may shake for longer, but not significantly harder. GPS has no such problem, because it directly measures the movement of the ground."
Education

Surgery-Simulating Dummy Allows Doctors To Develop Skills 30

Posted by samzenpus
from the cut-away dept.
techgeek0279 writes "The Cybram 001 Cybernetic Brain Artery Model simulates the functioning of the cerebral blood vessels, so doctors can practice performing actual operations on the brain. Developed through joint research by Fuyo and the Saitama Medical University International Medical Center, the life size plastic body contains a blood vessel system that runs from the groin to the cerebral artery, as well as a circulation pump and pressure control circuit used to realistically simulate blood flow and pressure in the body."
Japan

Japan To Be Without Nuclear Power After May 5 267

Posted by samzenpus
from the godzilla-would-be-sad dept.
mdsolar writes in with a Reuters article about the continued fallout of Fukushima on the nuclear industry in Japan. "Japan will within weeks have no nuclear power for the first time in more than 40 years, after the trade minister said two reactors idled after the Fukushima disaster would not be back online before the last one currently operating is shut down. Trade Minister Yukio Edano signaled it would take at least several weeks before the government, keen to avoid a power crunch, can give a final go-ahead to restarts, meaning Japan is set on May 6 to mark its first nuclear power-free day since 1970. 'If we thoroughly go through the procedure, it would be (on or) after May 6 even if we could restart them,' Edano told a news conference, adding that whether they can actually be brought back online is still up to ongoing discussions. The crisis at the Fukushima Daiichi nuclear plant, where a huge earthquake and tsunami in March 2011 triggered radiation leaks, has hammered public faith in nuclear power and prevented the restart of reactors shut down for regular maintenance checks, with all but one of 54 reactors now offline."
Japan

Japanese Researchers Create A Crab-Based Computer 102

Posted by samzenpus
from the 8gb-of-pincer dept.
mikejuk writes "You can build a computer out of all sorts of things — mechanical components, vacuum tubes, transistors, fluids and ... crabs. Researchers at Kobe University in Japan have discovered that soldier crabs have behaviors suitable for implementing simple logic and hence — with enough crabs — you can achieve a complete computer. The Soldier crab Mictyris guinotae has a swarming behavior that is just right for simple logic gates (PDF). When two crab swarms collide they fuse to make a single swarm — and this is enough to build an OR gate."
Earth

Scientists Study Trajectories of Life-Bearing Earth Meteorites 199

Posted by samzenpus
from the we-come-from-earth dept.
Hugh Pickens writes "About 65 million years ago, Earth was struck by an asteroid some 10 km in diameter with a mass of well over a trillion tonnes that created megatsunamis, global wildfires ignited by giant clouds of superheated ash, and the mass extinction of land-based life on Earth. Now astrobiologists have begun to study a less well known consequence: the ejection of billions of tons of life-bearing rocks and water into space that has made its way not just to other planets but other solar systems as well. Calculations by Tetsuya Hara and his colleagues at Kyoto Sangyo University in Japan show that a surprisingly large amount of life-bearing material ended up not on the Moon and Mars, as might be expected, but the Jovian moon Europa and the Saturnian moon Enceladus also received tons of life-bearing rock from earth. Even more amazingly, calculations suggest that most Earth ejecta ended up in interstellar space and some has probably already arrived at Earth-like exoplanets orbiting other stars. Hara estimates that about a thousand Earth-rocks from this event would have made the trip to Gliese 581, a red dwarf some 20 light years away that is thought to have a super-Earth orbiting at the edge of the habitable zone, taking about a million years to reach its destination. Of course, nobody knows if microbes can survive that kind of journey or even the shorter trips to Europa and Enceladus. But Hara says that if microbes can survive that kind of journey, they ought to flourish on a super-Earth in the habitable zone (PDF). 'If we consider the possibility that the fragmented ejecta (smaller than 1cm) are accreted to comets and other icy bodies, then buried fertile material could make the interstellar journey throughout the Galaxy,' writes Hara. 'Under these circumstances fragments could continue the interstellar journey and Earth origin meteorites could be transferred to Gl 581 system. If we take it as viable, we should consider the panspermia theories more seriously.'"
Japan

Japanese ATMs To Use Palm Readers In Place of Cash Cards 113

Posted by samzenpus
from the clean-your-hands dept.
alphadogg writes "A Japanese bank this week said it will introduce ATMs that use palm scanners in place of cash cards. Ogaki Kyoristu Bank said the new machines will allow customers to withdraw or deposit cash and check their balances by placing their hand on a scanner and entering their birthday plus a pin number. The ATMs will initially be installed at 10 banks, as well as a drive-through ATM and two mobile banks. Ogaiki announced the new ATMs with the slogan 'You are your cash card.'"
Businesses

Sony Projects Record Losses of $6.4 Billion 290

Posted by Unknown Lamer
from the crash-and-burn dept.
redletterdave writes "Not 24 hours after Sony announced it would slash about 10,000 jobs by the end of the year, the Japanese electronics maker announced on Tuesday that it has again doubled its annual net loss to a record $6.4 billion. The new annual estimate is Sony's fourth revision of its original forecast. The company had already more than doubled its loss forecast for fiscal 2011 on April 5 to $2.9 billion, blaming floods in Thailand, poor foreign exchange rates, and a failed partnership with Samsung... Kazuo Hirai, the company's new president and CEO hired 10 days ago, will take 'painful steps' to revive Sony, and will unveil a 'revival strategy' at a Thursday press briefing."
The Military

New Tech Makes Comprehensive Nuclear-Test-Ban Treaty Verifiable 93

Posted by Soulskill
from the except-our-super-secret-stealth-nukes dept.
Harperdog writes "In 1999, Senate Republicans rejected the Comprehensive Nuclear-Test-Ban Treaty on the grounds that it wasn't verifiable. The National Academy of Sciences feels this is no longer true, due to new technology. Quoting: 'Technologies for detecting clandestine testing in four environments — underground, underwater, in the atmosphere, and in space — have improved significantly in the past decade. In particular, seismology, the most effective approach for monitoring underground nuclear explosion testing, can now detect underground explosions well below 1 kiloton in most regions. A kiloton is equivalent to 1,000 tons of chemical high explosive. The nuclear weapons that were used in Japan in World War II had yields in the range of 10 to 20 kilotons.'"
Businesses

Sony Slashes 10,000 Jobs 92

Posted by samzenpus
from the so-long-sony dept.
redletterdave writes "Sony will cut about 10,000 jobs, which equates to about six percent of its global workforce, by the end of the year. The move comes after the Tokyo-based electronics firm more than doubled its loss forecast on April 5 to $2.9 billion, and the recent hiring of a new CEO, Kazuo Hirai, on April 1. Hirai looks to downsize Sony and pivot the company in a new direction to get out of the red for the first time in four years. The company will reportedly sell off its chemical products division, cutting about 3,000 workers in the process, and also make cuts within its small and midsize LCD operations. Sony did not say if it would cut these jobs in Japan, abroad, or both."
Japan

World Is Ignoring Most Important Lesson From Fukushima 328

Posted by timothy
from the stir-gently-rather-than-shake dept.
mdsolar writes "Kenichi Ohmae, an MIT-trained nuclear engineer also widely regarded as Japan's top management guru, is dean of Business Breakthrough University. In the CSM he writes: 'Fukushima's most important lesson is this: Probability theory (that disaster is unlikely) failed us. If you have made assumptions, you are not prepared. Nuclear power plants should have multiple, reliable ways to cool reactors. Any nuclear plant that doesn't heed this lesson is inviting disaster.'"
Earth

NOAA Study: Radiation From Fukushima Very Dilluted, Seafood Safe 267

Posted by timothy
from the actually-the-seafood-is-now-even-more-delicious dept.
JSBiff writes "Ars Technica is reporting on a study by NOAA scientists who surveyed the ocean near Fukushima, which concludes that while a lot of radioactivity was released into the water, as would be expected, it diluted out to levels that pose little risk to wildlife or humans, and that the seafood is safe to eat. Perhaps we needn't worry so much about "millions of gallons of radioactive water" being released into the ocean, like it's a major environmental disaster, as it's really not — the ocean is many orders of magnitude larger than any accidental release of radiation which might happen from a nuclear plant."
Japan

Japanese Tsunami Ghost Ship Spotted Off Canadian Coast 145

Posted by Unknown Lamer
from the fox-mulder-investigates-discovers-terrible-plot dept.
An anonymous reader writes with an excerpt from an article in Inhabitat: "After Japan was hit with a devastating earthquake in March 2011, the Pacific nation was rocked by a massive tsunami that destroyed thousands of coastal houses, cars and boats and swept millions of tons of debris out into the ocean. Now, it looks like some of that debris could be approaching North America. Last week, an unmanned boat identified as a Japanese fishing vessel was spotted off the coast of Canada, indicating that after more than a year, some of that debris could still be on its way to American and Canadian shores."
Japan

Why Onagawa Nuclear Power Station Survived the Tsunami 148

Posted by timothy
from the pure-driving-will dept.
Kyusaku Natsume writes "While the town of Onagawa, Miyagi Prefecture, was hit hard by the March 2011 tsunami, the nuclear plant it shares with the equally devastated city of Ishinomaki survived. The reason it did so is mostly down to the personal strength and tenacity of one Yanosuke Hirai, who passed away in 1986 and insisted that the plant should have been protected by a 14.8 m tall seawall. A great quote from the article: 'Corporate ethics and compliance may be similar, but their cores are different, from the perspective of corporate social responsibility, we cannot say that there is no need to question a company's actions just because they are not a crime under the law.'"
Japan

JAXA Creates Camera That Can See Radiation 49

Posted by timothy
from the predator-mecha-are-next dept.
New submitter Ben_R_R writes "The Japan Aerospace Exploration Agency has created a camera that can 'see' radioactive contamination by detecting gamma rays emitted by radioactive cesium and other substances. The camera has been tested in the disaster evacuation zone around Fukushima. The image captures levels of radiation in six different colors and overlays the result over an image captured with a wide angle lens."
Japan

Japan's Damaged Reactor Has High Radiation, No Water 282

Posted by Soulskill
from the prefers-diet-coke dept.
mdsolar passes along this quote from an Associated Press report: "One of Japan's crippled nuclear reactors still has fatally high radiation levels and hardly any water to cool it, according to an internal examination Tuesday that renews doubts about the plant's stability. A tool equipped with a tiny video camera, a thermometer, a dosimeter and a water gauge was used to assess damage inside the No. 2 reactor's containment chamber for the second time since the tsunami swept into the Fukushima Dai-ichi plant a year ago. The probe done in January failed to find the water surface and provided only images showing steam, unidentified parts and rusty metal surfaces scarred by exposure to radiation, heat and humidity. The data collected from the probes showed the damage from the disaster was so severe, the plant operator will have to develop special equipment and technology to tolerate the harsh environment and decommission the plant, a process expected to last decades."

Computer Science is merely the post-Turing decline in formal systems theory.