The Navy Bought Fake Chinese Microchips That Could Have Disarmed U.S. Missiles
|11:45:43 PM, Tuesday, August 02, 2011|
"Last year, the U.S. Navy bought 59,000 microchips for use in everything from missiles to transponders and all of them turned out to be counterfeits from China.
Wired reports the chips weren't only low-quality fakes, they had been made with a "back-door" and could have been remotely shut down at any time.
If left undiscovered the result could have rendered useless U.S. missiles and killed the signal from aircraft that tells everyone whether it's friend or foe.
Apparently foreign chip makers are often better at making cheap microchips and U.S. defense contractors are loathe to pass up the better deal.
The problem remains with these "trojan-horse" circuits that can be built into the chip and are almost impossible to detect -- especially without the original plans to compare them to.
The Intelligence Advanced Research Projects Agency (IARPA) is now looking for ways to check the chips to make sure they haven't been hacked in the production process.
Expect to see a whole lot more funding directed to this goal. Or, considering IARPA is the research and development section of the intelligence community -- expect the money to be spent -- don't expect to see where."
Astronomy Picture of the Day: The Great Carina Nebula
|11:33:25 PM, Tuesday, August 02, 2011|
-- "A jewel of the southern sky, the Great Carina Nebula, also known as NGC 3372, spans over 300 light-years, one of our galaxy's largest star forming regions. Like the smaller, more northerly Great Orion Nebula, the Carina Nebula is easily visible to the unaided eye, though at a distance of 7,500 light-years it is some 5 times farther away. This gorgeous telescopic portrait reveals remarkable details of the region's glowing filaments of interstellar gas and obscuring cosmic dust clouds. Wider than the Full Moon in angular size, the field of view stretches nearly 100 light-years across the nebula. The Carina Nebula is home to young, extremely massive stars, including the still enigmatic variable Eta Carinae, a star with well over 100 times the mass of the Sun. Eta Carinae is the brightest star at the left, near the dusty Keyhole Nebula (NGC 3324). While Eta Carinae itself maybe on the verge of a supernova explosion, X-ray images indicate that the Great Carina Nebula has been a veritable supernova factory. "
Artificial Nanoparticles Influence the Heart Rate
|9:21:02 PM, Monday, August 01, 2011|
"In light of the increasing demand for artificial nanoparticles in medicine and industry, it is important for manufacturers to understand just how these particles influence bodily functions and which mechanisms are at play – questions to which there has been a dearth of knowledge.
Studies on heart patients have shown for decades that particulate matter has a negative effect on the cardiovascular system. Yet, it remained unclear whether the nanoparticles do their damage directly or indirectly, for example through metabolic processes or inflammatory reactions. The reactions of the body are simply too complex.
Using a so-called Langendorff heart – an isolated rodent heart flushed with a nutrient solution in place of blood – scientists from the Helmholtz Zentrum Muenchen and the TU Muenchen were for the first time able to show that nanoparticles have a clearly measurable effect on the heart. When exposed to a series of commonly used artificial nanoparticles, the heart reacted to certain types of particles with an increased heart rate, cardiac arrhythmia and modified ECG values that are typical for heart disease. "We use the heart as a detector," explains Professor Reinhard Nießner, Director of the Institute of Hydrochemistry at the TU Muenchen. "In this way we can test whether specific nanoparticles have an effect on the heart function. Such an option did not exist hitherto."
Scientists can also use this new model heart to shed light on the mechanism by which the nanoparticles influence the heart rate. In order to do this, they enhanced Langendorff's experimental setup to allow the nutrient solution to be fed back into the loop once it has flown through the heart. This allows the scientists to enrich substances released by the heart and understand the heart's reaction to the nanoparticles.
According to Stampfl and Nießner, it is very likely that the neurotransmitter noradrenaline is responsible for the increased heart rate brought on by nanoparticles. Noradrenaline is released by nerve endings in the inner wall of the heart. It increases the heart rate and also plays an important role in the central nervous system – a tip-off that nanoparticles might also have a damaging effect there..."
North Korea Demands Peace Treaty With US
|11:06:52 PM, Sunday, July 31, 2011|
"North Korea demanded Wednesday that the United States sign a peace treaty formally ending the Korean War, as a senior North Korean diplomat visited New York to negotiate ways to restart six-nation nuclear disarmament talks.
In an editorial marking the 58th anniversary of an armistice that ended the 1950-53 war, the North's official Korean Central News Agency insisted a peace treaty could go a long way toward resolving a deadlock over Pyongyang's pursuit of nuclear weapons.
North Korea has long called for a peace treaty with the United States. The armistice left the Korean peninsula in a technical state of war. Its latest push comes as North Korean Vice Foreign Minister Kim Kye Gwan makes a fresh attempt to reopen six-nation talks that were last held in December 2008.
U.S. Secretary of State Hillary Rodham Clinton invited Kim to New York to meet with U.S. officials later this week only after nuclear envoys from the rival Koreas held surprise talks last week.
Seoul blames North Korea for two attacks that killed 50 South Koreans last year and has demanded that Pyongyang show remorse. The United States has insisted that its ally Seoul must be satisfied that inter-Korean ties are improving before it will pursue more nuclear negotiations with Pyongyang.
Kim told reporters after landing Tuesday in New York that he was "optimistic of the prospects for the six-way talks and the North Korea-U.S. relationship," according to South Korea's Yonhap News Agency. "I believe North Korea-U.S. relations will improve, as now is the time for countries to reconcile."
Despite Kim's positive tone, North Korea is making clear ahead of the New York talks that it wants a separate dialogue on signing a peace treaty, in addition to six-nation nuclear negotiations, said Kim Keun-sik, a North Korea expert at Kyungnam University in South Korea..."
-- I don't think Kim understands how peace talks work.
Hydrothermal Worm Haunts Your Nightmares
|10:57:05 PM, Sunday, July 31, 2011|
"We’d love to claim the photo below was taken in outer space, but that isn’t true. Seen below is the hydrothermal worm, a rather obscure microorganism that lurks in thermal vents deep (really deep) in the ocean. It’s a recent discovery and its scientific name is still unknown.
The hydrothermal worm is so small it’s no use giving its exact measurement. Just think of it as roughly the size of your friendly neighborhood bacteria. No doubt its not the only miniscule creature lurking beyond the naked eye and beyond the human imagination. There must be trillions of undiscovered species out there. Lurking. Waiting. Feeding.
Just to give credit where credit is due, the epic photograph up north was taken by Philippe Crassous using an electron microscope. The FEI Quanta Sem zoomed unto the organism more than 500 times to capture a portrait of its ferocious mug. Staring intently at it, the hydrothermal worm’s visage reminds us of sandworms from Dune..."
King Bones & DJ Aaron in 'Finger Food' New York City Subway | YAK FILMS Flexing Bonebreaking Dance
|10:34:45 PM, Saturday, July 30, 2011|
-- Watch it.
Discovered By Chance, The Secret Mexican Crystal Caves Big Enough To Drive a Car Through
|9:46:32 PM, Saturday, July 30, 2011|
"Discovered by two miners looking for lead, these amazing crystal-lined caves could be mistaken for Superman's ethereal Arctic lair.
These stunning white beams of gypsum have been growing at a snail's pace for hundreds of thousands of years in caves below Naica in Mexico.
Ten years after the amazing discovery, scientists are petitioning the Mexican government to claim for Unesco World Heritage status to protect the unique formations for future generations.
'They're really one of the Wonders of the World,' said Juanma Garcia Ruiz, a geologist from Spain's Instituto Andaluz de Las Ciencias de la Tierra, who has studied at the mine.
These stunning images, which were taken by world-renowned Spanish photographer Javier Trueba, show the sheer size of the crystals, some of which measure up to 11 metres.
Growing slowly over time, it is still unclear why the formations fill the caves at such haphazard angles.
The huge mines at Naica have been excavated for years, but in 1975 a massive area was drained so mining operations could take place..."
Andrew Walker Incredible Catch During Round 18 Essendon v Carlton - Australian Football
|11:30:15 AM, Friday, July 29, 2011|
Andreas 'Andy' Gülden of Nürburgring Driving Academy - Insane Wet Lap Run of Nürburgring
|11:17:56 AM, Friday, July 29, 2011|
'Clubbed To Death' - Rob Dougan - Kurayamino Mix - The Origin
|11:57:11 PM, Thursday, July 28, 2011|
‘Battleship’ Changes the Game in the First Trailer Premiere
|2:18:43 PM, Wednesday, July 27, 2011|
"Aw, you sunk my battleship!"
Those lines were immortalized in the 1967 TV commercial for Milton Bradley's first edition of the board game Battleship. But the game had existed in various pencil-and-paper forms since the early part of the 20th Century. Since then, the game has been adapted into electronic versions, video games, and now mobile phone apps. But next year the game is being reinvented again as a big-budget action movie.
So how are they turning a fairly simple two-player strategy game into a two-hour silver-screen spectacle? By adding aliens.
In "Battleship," Taylor Kitsch (TV's "Friday Night Lights") plays Lt. Alex Hopper, a Naval officer with a rebellious streak living in the shadow of his older brother, Stone (Alexander Skarsgard of "True Blood"). Out off the coast of Hawaii for an international training exercise, Alex discovers a massive vessel floating in the water. It rises up into the air, and suddenly the war games aren't so fun anymore.
So obviously it's not a direct translation of the game, but it does promise to retain many of the fundamental elements of the original. Director Peter Berg ("Hancock," "The Kingdom") told CHUD.com that like in the game each side of the conflict will have a small fleet of five ships. The aliens are part of a scouting party, not a full-fledged invading force, and the humans will be cut off from the rest of the world. And the Naval ships will have their radar disabled, so they will have to strategize to figure out where their enemies are lurking..."
-- Coming this summer Rubics Cube - The Movie, in 3D.
Artificial Cilia Spur New Thinking in Nanotechnology
|12:36:41 PM, Wednesday, July 27, 2011|
"Cilia, tiny hair-like structures that perform feats such as clearing microscopic debris from the lungs and determining the correct location of organs during development, move in mysterious ways. Their beating motions are synchronized to produce metachronal waves, similar in appearance to "the wave" created in large arenas when audience members use their hands to produce a pattern of movement around the entire stadium.
Due to the importance of ciliary functions for health, there is great interest in understanding the mechanism that controls the cilias’ beating patterns. But learning exactly how cilia movement is coordinated has been challenging.
That may be beginning to change as a result of the creation, by a team of Brandeis researchers, of artificial cilia-like structures that dramatically offers a new approach for cilia study.
In a recent paper published in the journal Science, Associate Professor of Physics Zvonimir Dogic and colleagues present the first example of a simple microscopic system that self-organizes to produce cilia-like beating patterns.
“We’ve shown that there is a new approach toward studying the beating,” says Dogic. “Instead of deconstructing the fully functioning structure, we can start building complexity from the ground up.”
The complexity of these structures presents a major challenge as each cilium contains more than 600 different proteins. For this reason, most previous studies of cilia have employed a top-down approach, attempting to study the beating mechanism by deconstructing the fully functioning structures through the systematic elimination of individual components..."
Chernobyl's Przewalski's Horses In The Exclusion Zone Are Poached For Meat
|12:15:17 PM, Wednesday, July 27, 2011|
"A herd of Critically Endangered wild Przewalski's horses in the Chernobyl exclusion zone is under threat from poachers, say scientists.
Researchers in Ukraine say that the population may be in decline because poachers have been removing the animals faster than they are breeding.
Thirty-one horses were taken from a Przewalski's horse reserve and from a local zoo.
They were released into the zone in 1998 and 1999.
Scientists from the state-run SSSIE Ecocentre in Chernobyl say the horses were introduced to "enrich the biodiversity" of the exclusion zone surrounding Chernobyl nuclear power station's damaged nuclear reactor.
The zone was evacuated in 1986 after reactor number four exploded.
Professor Tim Mousseau, a biologist from the University of South Carolina who visits the zone to work at least twice a year, says that the herd he has spotted has been "getting smaller" in recent years.
"Many people in this part of Ukraine are very poor," he told BBC Nature on a recent trip to the exclusion zone.
"So access to a readily available supply of horsemeat is tempting for people."
But Sergiy Paskevych, a researcher from the National Academy of Science in Ukraine and the author of a website dedicated to ecology and wildlife in the exclusion zone, told BBC Nature that poachers probably travelled long distances to the exclusion zone and took the carcasses away to be sold..."
Dog Fails To Jump Over A Hedge
|8:38:39 PM, Tuesday, July 26, 2011|
Summer Is Coming by Marta Černická
|8:28:21 PM, Tuesday, July 26, 2011|
-- Bringing back the deviantART features! Been neglecting DA. =(
HOME Older Posts »