Henning Burdack writes "Eric Lerner talks on Google Tech Talks about Focus Fusion, which would be a much cheaper and more feasible technology as a fusion energy source than any other current approach, based upon the dense plasma focus device. The technology will use hydrogen-boron fusion with direct induction of ion energy and photovoltaic conversion of x-ray emission, obviating the need of a steam-cycle and thus resulting in higher efficiencies. High temperatures of 1 billion Kelvin (100 keV) have been reached years ago. It only needs $2 million in funding and two years of research for a proof of concept, and maybe four more years for a prototype with positive energy output. In contrast to other fusion efforts it utilizes the natural instabilities of plasma instead of fighting them. Focus Fusion has been discussed on Slashdot before, and a patent application is also available, going a bit more into detail."Read more of this storyat Slashdot.

  mikesd81 notes an ABC News report that astronauts aboard the ISS have opened the new station room. Commander Peggy Whitson and astronaut Paolo Nespoli delayed their lunch so the event could happen before the station's orbit temporarily blocked the ability to send a video downlink to Mission Control. From the article: "Nespoli... joined Discovery's crew to personally deliver the Italian-made pressurized chamber... Astronauts added the school bus-sized room called Harmony during a 6.5-hour spacewalk Friday, using a robotic arm to lift it from the shuttle's cargo bay and install it on the station. The compartment will serve as the docking port and nerve center for European and Japanese laboratories that will be delivered on the next three shuttle flights. It also will be a power and thermal distribution center, providing air, electricity, water and other systems for the space station. Racks of computer and electronic equipment are already inside the cylinder, which will double as a living space for the crew... The astronauts will have to undo more than 700 bolts [which held down the equipment during flight] to free up the equipment."Read more of this storyat Slashdot.

  cats-paw writes in with news of research that seems to confirm and support current theories of how cosmic rays are created. The prevailing thinking has been that cosmic rays are generated in the regions where supernovas' shock waves interact with the interstellar medium. The new research used the variability in X-ray emissions from a supernova remnant to estimate the strength of the magnetic fields present in that environment. The results lend support to the possibility of protons and nucleii being accelerated in supernova remnants to energies of 1 PeV (10^15 eV) and beyond. Here is the abstract from Nature.Read more of this storyat Slashdot.

  bhmit1 writes "The latest space walk has turned up some bad news for the problematic solar panels: metal shavings. From the article: "The rotary joint, 10 feet in diameter, has experienced intermittent vibrations and power spikes for nearly two months. Space station managers were hoping a thermal cover or bolt might be hanging up the mechanism. That would have been relatively easy to fix, so they were disheartened when Daniel Tani radioed down that metal shavings were everywhere. 'It's quite clear that it's metal-to-metal grating or something, and it's widespread,' Tani said.""Read more of this storyat Slashdot.

  mikesd81 writes "The rocketeers at Armadillo Aerospace, thwarted by engine problems and other mechanical failures, left this year's X Prize Cup empty-handed after their spacecraft burst into flames on liftoff Sunday. An attempt on Sunday to hop from launch and landing pads ended with the MOD craft bursting in flames shortly after engine ignition. This is the team's second attempt at the challenge in New Mexico, they were the only entrant in last year's event, which they also lost. Brett Alexander, Executive Director of Space Prizes and the X Prize Cup relayed a comment from John Carmack, leader of the Armadillo team: "Today is officially a bad day when it comes to our vehicle." he last attempt to win the $350,000 Level 1 prize on Sunday ended when the MOD vehicle had an engine fire, with pieces coming off, including disconnected cabling. Clearly, there was a fire on the pad that burned for a while — but then went out. The Armadillo team called a safety emergency, requesting fire truck assistance, Alexander said."Read more of this storyat Slashdot.

  Writer Matthew Chapman recently wrote a piece for the Washington Post calling for a science-only Presidential debate. While I wouldn't hold my breath waiting for the candidates to embrace such a potentially difficult series of questions, a bit more emphasis on modern science and technology certainly couldn't hurt. "None of the candidates should know in advance what questions they might face. Not knowing the questions in advance would force them to study as much science as possible, and this in itself would be a marvelous thing. However, a statement would be read at the start stating that no one expects politicians to understand every aspect of the many scientific disciplines. The debate's tone would try not to be adversarial, but cordial and educational. It could even be fun."Read more of this storyat Slashdot.

  Fishbat writes "In a cutting message to the Foundations of Mathematics mailing list, Stanford's Vaughan Pratt has pointed out an elementary mistake in the recently announced proof that Wolfram's (2,3) machine is universal." Update: 10/30 04:18 GMT by KD : Ed Pegg Jr. from Wolfram Research points to this response to Dr. Pratt's note, which has been submitted to the FoM mailing list but has not yet appeared there due to moderation.Read more of this storyat Slashdot.

  Ponca City, We Love You writes "The New Scientist reports that palaeontologists have excavated a fossil trackway in Shandong Province in China 100 to 120 million years old that contains footprints left by six Dromeosaurs, the more formal name for raptors, showing evidence of group behavior. Up until now, the popular stereotype from Jurassic Park of raptors hunting in packs has had no fossil evidence to back it up. The paths of the six 90 kilo raptors do not overlap where the animals walked alongside a river or stream. '"The odds of these tracks being made by different individuals that just happen to be moving in the same direction, without their tracks stepping on one another, are small," said Jerry D. Harris, director of paleontology at Dixie State College. "Groups that do that usually have relatively sophisticated behavior, and they're relatively intelligent," Harris added. "By moving together in groups, it's entirely possible that they hunted in groups."'"Read more of this storyat Slashdot.

  Ponca City, We Love You writes "Bite a hot pepper, and after the burn your tongue goes numb. The Baltimore Sun reports that Capsaicin, the chemical that gives chili peppers their fire, is being dripped directly into open wounds during highly painful operations, bathing surgically exposed nerves in a high enough dose to numb them for weeks. As a result patients suffer less pain and require fewer narcotic painkillers as they heal. 'We wanted to exploit this numbness,' says Dr. Eske Aasvang, a pain specialist who is testing the substance. Capsaicin works by binding to C fibers called TRPV1, the nerve endings responsible for long-lasting aching and throbbing pain. Experiments are under way involving several hundred patients undergoing various surgeries, including knee and hip replacements using an ultra-purified version of Capsaicin to avoid infection. Volunteers are under anesthesia so they don't feel the initial burn."Read more of this storyat Slashdot.

  mytrip wrote with a note that the PlayStation 3 should be very proud of itself. Sony's monster-powerful console has lifted Stanford's very own distributed computing project (Folding@home) into the record books. "Guinness has apparently certified the project as the world's most powerful distributed computing system. According to a release from Sony, Folding@home topped 1 petaflop last month, meaning that it surpassed a thousand trillion floating point operations per second. By comparison, the well-known SETI@home project has topped out, according to Wikipedia, at around 265 teraflops, or 265 trillion floating point operations a second." There appears to be a team slashdot if you're looking for someone to support. Go fighting 006666!Read more of this storyat Slashdot.

  An anonymous reader writes "A recent unfortunate casualty of anti-terrorism laws is the home chemistry set. Once deemed the gift that saved Christmas, most Slashdotters probably remember early childhood experimentation with one of the many pre-packaged chemistry sets that were on the market. Unfortunately the FBI has decided that home chemistry sets are a threat to national security and they are rapidly disappearing from the market entirely. Those that remain are shallow boring versions of the old kits."Read more of this storyat Slashdot.

  mcgrew writes "New Scientist is reporting that "non-human primates really can understand the meaning of numerals." The small study of two rhesus monkeys reveals that cells in their brains respond selectively to specific number values — regardless of whether the amount is represented by dots on a screen or an Arabic numeral. For example, a given brain cell in the monkey will respond to the number three, but not the number one. The results suggest that individual cells in human brains might also have a fine-tuned preference for specific numerical values." The report itself is online at PLoS Biology, Semantic Associations between Signs and Numerical Categories in the Prefrontal Cortex."Read more of this storyat Slashdot.

  wattrlz writes "In a development reminiscent of nineteenth century pseudo-science, the father-son team of Kong Thon and Shaw Wei Tsen recently demonstrated that the tobacco mosaic virus can be destroyed in vitro by nano-scale mechanical resonant vibrations induced by repeated ultra-short pulses from a laser. The total energy required is reportedly far below the threshold for human tissue damage and the technique should generalize to human pathogens. Cleaning stored blood is one obvious application."Read more of this storyat Slashdot.

  Invisible Pink Unicorn writes "Researchers at the National Science Foundation have utilized a single carbon nanotube to perform all the functions of a standard radio, acting as an antenna, tunable filter, amplifier, and demodulator. They were then able to tune in a radio signal generated in the room and play it back through an attached speaker. The device is functional across a bandwidth widely used for commercial radio. From the NSF: 'The source content for the first laboratory test of the radio was "Layla," by Derek and the Dominos, followed soon after by "Good Vibrations" by the Beach Boys.'"Read more of this storyat Slashdot.