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Domain: physorg.com
Stories and comments across the archive that link to physorg.com.
Stories · 310
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Student Satellite Ready for Space
An anonymous contributor writes "Nearly one hundred students from all over Europe have been working hard on SSETI Express Satellite (Student Space Education and Technology Initiative). Last week a handful of students gathered at the Netherlands to put the finishing touches to the flight model. The final exams in the space simulators will follow in January - the last hurdle before launch in May 2005. The satellite has been largely designed and built via the Internet. The students keep each other informed about the latest developments using a special news server and weekly chat sessions." -
Da Vinci's Ornithopter Prepares For a Test Flight
Dirak writes "Over 500 years ago, Leonardo da Vinci conceptualized a self-powered flying machine that would achieve both lift and thrust with flapping wings alone and named it the "ornithopter". Hot on the heels of the 100th Anniversary of the Wright Brothers flight, and the recent X prize, a team of scientists from University of Toronto's Institute for Aerospace have taken on this challenge to make Leonardo's dream a reality." -
Futuristic 'Smart' Yarns from Carbon Nanotubes
neutron_p writes "Scientists at The UTD NanoTech Institute achieved a major technological breakthrough by spinning multi-walled carbon nanotube yarns that are strong, tough and extremely flexible, and are both electrically and thermally conducting. Among other things, the futuristic yarns could result in 'smart' clothing that stores electricity, provides ballistic protection and adjusts temperature and porosity to provide greater comfort. The breakthrough, made possible by, in effect, downsizing ancient technology used for wool and cotton spinning to the nanoscale, resulted from an unusual collaboration involving nanotechnologists and experts in wool spinning." -
HP Backs Blu-ray Disc Technology
neutron_p writes "Finally HP announced plans to include Blu-ray Disc drives across many of its product lines, including select consumer desktop and notebook PCs, personal workstations and digital entertainment centers. They will start selling PCs equipped with Blu-ray Disc drives in late 2005. An optical disc technology, Blu-ray Disc is poised to replace current DVD technology and become the next standard for personal computing data storage and viewing high-definition movies. More than 70 of the world's leading technology and entertainment companies have committed to the Blu-ray Disc format. Recently, Sharp unveiled Blu-ray disc recorder with Hard Drive/DVD which will be introduced on the Japanese market in December." -
How Negative Thermal Expansion Works
Bill Kendrick writes "Scientists at the University of California, Santa Cruz, are discovering why compounds like zirconium tungstate 'are acting like they are from Bizarro world': contracting, rather than expanding, when heated. They believe it's a combination of geometrical frustration (which sounds a lot like what it is), and a 'twisting' motion of the atoms." -
Apollo 12 at 35
neutron_p writes "Thirty-five years ago this week, the sedentary, fine-grained powder began to rise, billow and race off toward the horizon. Soon after - at 1:54:35 a.m. EST on Nov. 19, 1969 - the lunar module Intrepid landed, bringing two more humans to the surface of another world. Apollo 12 commander Pete Conrad and lunar module pilot Alan Bean would be on the Moon for more than 31 hours, with crewmate Dick Gordon orbiting above in the command module Yankee Clipper." -
Another Competitor for Blu-ray and HD-DVD
neutron_p writes "New Medium Enterprises unveils the highly anticipated pre-industrial Versatile MultiLayer Discs, the next generation HD Disc & Drive containing 20GB of storage capacity. VMDs use the current Red Laser technology, so it's easier for DVD factories to switch over. The company is set for launching production and sales of 15 GB, 20 GB, 25 GB and 30 GB Discs & Drives by Fall 2005. The drives will be inherently backward compatible with the existing pre-recorded and recordable DVD and CD formats." -
NASA to Attempt Mach 10 Flight Next Week
Dirak writes "NASA intends to break its own aircraft-speed record for the second time this year by flying X43a scramjet ten times faster than sound. On November 15 the X-43A supersonic-combustion ramjet - or scramjet - will again take to the skies aiming for Mach 10." -
NASA to Attempt Mach 10 Flight Next Week
Dirak writes "NASA intends to break its own aircraft-speed record for the second time this year by flying X43a scramjet ten times faster than sound. On November 15 the X-43A supersonic-combustion ramjet - or scramjet - will again take to the skies aiming for Mach 10." -
Martian Moon Phobos in Detail
neutron_p writes "Today we can see the highest-resolution pictures so far of the Martian moon Phobos. These images show new detail that will keep planetary scientists busy for years, working to unravel the mysteries of this moon. The images show the Mars-facing side of the moon, taken by Mars Express from a distance of less than 200 kilometres with a resolution of about seven metres per pixel." -
Wireless Chip Embedded in Paper
neutron_p writes "Japanese company Oji Paper has developed technology to embed semiconductor chips in paper during the papermaking processes. The embedded chip is 0.5x0.5mm and comes with a built-in antenna for wireless transmission at frequencies of between 13.56MHz to 2.45GHz. This breakthrough technology enables mass production of chip-embedded paper that will be used in lots of paper products: personal checks, paper bills, gift certificates, etc." -
Theorists Tackle Mysterious 'Baby' Planet
neutron_p writes "Researchers from the University of Rochester located a potential planet around another star so young that it defied theorists' explanations and another team of Rochester planet-formation specialists are backing up the original conclusions, saying they've confirmed that the hole formed in the star's dusty disk could very well have been formed by a new planet. The findings have implications for gaining insight into how our own solar system came to be, as well as finding other possibly habitable planetary systems throughout our galaxy." -
Do Honeybees Defy Dinosaur Extinction Theories?
neutron_p writes "The humble tropical honeybee may challenge the idea that a post-asteroid impact "nuclear winter" was a big player in the decimation of dinosaurs 65 million years ago. Somehow the tropical honeybee, Cretotrigona prisca, survived the end-Cretaceous extinction event, despite what many researchers believe was a years-long period of darkness and frigid temperatures caused by sunlight-blocking dust and smoke from the asteroid impact at Chicxulub." -
Understanding Earth's Magnetic Field
neutron_p writes "Researchers from the University of Maryland's nonlinear dynamics and chaos research group are seeking to solve a major scientific mystery: How is the Earth's magnetic field formed and what causes changes in the field? To find answers, they are recreating on a small scale the forces that produce Earth's own magnetic field. Scientists have constructed a series of "geodynamos" - metal spheres filled with liquid sodium that emulate conditions of the Earth's spinning, churning molten iron core. This project involves more than 14 tons of sodium metal and a 10-foot stainless steel sphere." -
Duke Robot Climbs to Victory in Madrid
neutron_p writes "A wall-climbing, book-sized autonomous vehicle made by a Duke University team drove up a challenging vertical course to win first prize in an international competition in Madrid. Their robot Wallter was the only one that could start flat on the floor and climb the wall on its own, go over a barrier across the wall or stop itself after crossing the finish line." -
Origin of Cosmic Rays Revealed
neutron_p writes "An international team of astronomers has produced the first ever image of an astronomical object using high energy gamma rays, helping to solve a 100 year old mystery - an origin of cosmic rays. The astronomers studied the remnant of a supernova that exploded some 1,000 years ago, leaving behind an expanding shell of debris which, seen from the Earth, is twice the diameter of the Moon. Cosmic rays are extremely energetic particles that continually bombard the Earth, thousands of them passing through our bodies every day." -
World's First Ultra-Thin Multilayer Circuit Board
neutron_p writes "Seiko Epson has developed the world's first 20-layer circuit board. Multilayer circuit boards are normally produced by using a photolithography. However, the industry has struggled to produce thin, lightweight, high-density multilayer circuit boards. Seiko Epson uses an inkjet-based manufacturing process, which has many advantages over a traditional photolithography process." -
Physicists Finally Solve the Falling-Paper Problem
neutron_p writes "The so-called "falling paper" problem has long intrigued scientists. James C. Maxwell pondered the tumbling motions of playing cards in 1853. Why don't flat things fall straight down? Pieces of paper fall down, then rise into the air, then glide along, then again rise... It occurs in a seemingly chaotic manner. Now researchers at Cornell University have solved the falling paper problem by calculating the motions of a scientific journal page in flight and there were a few surprises." There's also a story in the Cornell Sun. -
Hibernating to Mars
neutron_p writes "Manned missions beyond the Moon are no longer wild dreams. NASA plans a manned mission to Mars before 2020. With automatic systems in control, astronauts would face the challenge of living in a confined space with not much to do for an extremely long period. 'Might as well sleep it off!' Studies initiated by ESA have gone one step further. Wouldn't it be nice if astronauts could hibernate! ESA biologists are conducting investigations into the physiological mechanisms that mammals use to hibernate." -
Sun's Activity Levels Reconstructed
neutron_p writes "An international team of scientists has reconstructed the Sun's activity over the last 11 millennia and forecasts decreased activity within a few decades. The activity of the Sun over the last 11,400 years, i.e., back to the end of the last ice age on Earth, has now for the first time been reconstructed quantitatively. The scientists have analyzed the radioactive isotopes in trees that lived thousands of years ago. As scientists report in the current issue of the science journal Nature, one needs to go back over 8,000 years in order to find a time when the Sun was, on average, as active as in the last 60 years." -
China to Launch Solar Telescope
Dirak writes "China plans to launch the world's largest and most advanced space solar telescope (SST) into 735-kilometre-high earth synchronous orbit in 2008. Japan and the United States are also jointly developing an SST, coded as SOLAR-B, now scheduled for launch in the September of 2005. But with a diameter of 0.5 metre, SOLAR-B has half capability in optical resolution than that of the Chinese-made solar telescope." -
Nissan Exhibits IEEE 1394-Compatible Car
Dirak writes "High-speed IEEE 1394 optical fiber networks have gone off-road with new Nissan's prototype vehicle demonstrated this year's at 11th World Congress on Intelligent Transport Systems. The prototype is equipped with 7 cameras on the body and a 12-inch LCD monitor in the front and another in the rear seat area. Thanks to the in-vehicle IEEE 1394 LAN, which is capable of high-speed communications at 400Mbps via optical cable, the front and the rear seat monitors can display various information simultaneously, for example. The application of optical fiber also means that the weight of the cables can be reduced to about one-half the weight of a conventional wiring harness." -
Green Plants for Mars Mission
An anonymous reader writes "NASA doesn't keep back that they are going to send a human expedition to Mars in a couple of decades. One of the obstacles for the longstanding 35-million-mile voyage is a food production. NASA researchers have focused on 20 plant species that NASA believes could be grown during a flight to Mars and after landing on the fourth planet from the Sun. By far not all of them are suitable for space expedition." -
ISS Expedition 9 Crew Finally Returns to Earth
neutron_p writes "International Space Station Expedition 9 crewmembers, Commander Gennady Padalka and NASA Science Officer Mike Fincke landed on target in the steppes of Kazakhstan at 8:36 p.m. EDT Saturday after 188 days in space." -
UCLA Researchers Demo First Silicon Laser
An anonymous reader submits "Researchers at University of California, LA have demonstrated the first silicon laser. The lack of a silicon laser has been a major roadblock in the progress of silicon optoelectronics and photonics. This development shows that despite popular belief, a laser can indeed be made on a silicon chip. Modern electronic computers are getting closer to being optical in any case (gigahertz range). This discovery makes optical computers much closer to reality." -
Earth Tides Trigger Earthquakes
Dirak writes "UCLA scientists confirmed that Earth tides, produced by the gravitational pull of the moon and the sun on the Earth, causing the ocean's waters to slosh, can trigger earthquakes. There are many mysteries about how earthquakes occur, but now it is clear that it takes about the force arising from changing the sea level by a couple of meters of water to noticeably affect the rate of earthquakes." -
World's First Single-Atom-Thick Fabric
neutron_p writes "Researchers at The University of Manchester have made the world's first single-atom-thick fabric, which reveals the existence of a new class of materials and may lead to computers made from a single molecule. They call it graphene, because it's 'webbed' by extraction of individual planes of carbon atoms from graphite crystal. The nanofabric belongs to the family of fullerene molecules, which were discovered during the last two decades, but is the first two-dimensional fullerene." -
Turbulence in Saturn's Atmosphere
neutron_p writes "Today an image of turbulence in the atmosphere of Saturn has been unveiled. This image was taken with the NASA/ESA/ASI Cassini-Huygens spacecraft camera. This pattern is an example of a 'Kelvin-Helmholtz instability', which occurs when two fluids of different density flow past each other at different speeds. This phenomenon should be common on the gas-giant planets." -
"Phishing" Attacks to Increase
neutron_p writes "The number of people who succumb to identity thieves' "phishing" e-mails could go way up if immediate action isn't taken to preempt the next generation of attacks, according to an Indiana University School of Informatics researcher. "Phishing" e-mails appear to be sent by legitimate businesses, but are actually created and distributed by villains who are after your personal information. They describe some thieves' tricks. One kind of context-aware attack tricks eBay bidders into giving out identifying information by leading bidders to believe they've won an auction. In another kind of context-aware attack, a potential victim might receive a message from a known person -- for example, a friend or loved one - asking him or her to go to a Web site to update banking information." -
Nanotechnology To Replace Conventional CMOS
neutron_p writes "There is a lot of hype around nanotechnology these days, but some things are going to work in a near future anyway. IMEC announced a program aimed at seeking alternatives to the current CMOS manufacturing technologies using nanotechnologies. IMEC will investigate the use of semiconducting wires, carbon nanotubes and spintronics or electron spin." (IMEC describes itself as "Europe's leading independent research center" in the fields of microelectronics and nanotechnology.) -
High-Tech Shopping Carts
neutron_p writes "A Massachusetts-based supermarket chain says it will roll out new intelligent shopping carts that promise to make food shopping much more personalized and interactive. They will let shoppers email their shopping lists to the store and check prices on the spot. Each new 'Shopping Buddy' cart mounts a wireless, touch-screen IBM computer, equipped with a laser scanner. The computer will also alert shoppers as they approach favorite items or promotions." -
Wearable LCD Display
fenimor writes "PhysOrg reports, that Mitsubishi is going to introduce next year a headset with a small liquid-crystal display screen which is positioned in front, slightly below eye level so as not to obstruct normal vision. Designed for users who need to perform multiple tasks simultaneously, this tiny wearable heads-up display is expected to cost only US $400." -
Next Mars Mission Will Look for Landing Sites
fenimor writes "NASA's next mission to Mars to be launched on Aug. 10, 2005 - Mars Reconnaissance Orbiter - will examine potential landing sites and provide a high-data-rate communications relay for for future surface missions. Weighing 2,180 kilograms, the spacecraft will be the largest ever to orbit Mars and with the largest telescopic camera ever sent into orbit around another planet, will reveal Mars surface features as small as a kitchen table." -
Huygens Landing on Titan to be Tricky
neutron_p writes "On Jan. 14, 2005, Huygens probe will plow into the orange atmosphere of Saturn's moon, Titan. It will be flying blind through hydrocarbon haze and methane clouds to a surface that could consist of seven-kilometer-high ice mountains and liquid methane seas. Scientists hope that Huygens will survive the plunge. I hope too, especially after Genesis mission accident, although condition were much better." -
Huygens Landing on Titan to be Tricky
neutron_p writes "On Jan. 14, 2005, Huygens probe will plow into the orange atmosphere of Saturn's moon, Titan. It will be flying blind through hydrocarbon haze and methane clouds to a surface that could consist of seven-kilometer-high ice mountains and liquid methane seas. Scientists hope that Huygens will survive the plunge. I hope too, especially after Genesis mission accident, although condition were much better." -
19th Century Airship Technology for Port Security
fenimor writes "Airships - known today mainly for advertising flyovers at football games - are the core of a new coastal surveillance system in development for the the U.S. Department of Defense. These stationary platforms 25 times the size of a Goodyear blimp will be equipped with an array of cutting-edge equipment for remote sensing, communications, and risk analysis, providing surveillance coverage over a surface area of 500,000 square miles from an altitude of 70,000 feet." -
Nitrogen 'Diamond' Created
Sensible Clod writes "Researchers of the Max Planck Institute for Chemistry have synthesized a new form of nitrogen, with a stucture like that of diamond. This was accomplished by means of a crushing force (>110 GPa) at extremely high temperature (2000 K), of course. The result, according to PhysOrg, is a very hard crystal with a lot of energy stored in it, which leads to the possibility of using it as a non-polluting fuel or high-explosive." -
Nitrogen 'Diamond' Created
Sensible Clod writes "Researchers of the Max Planck Institute for Chemistry have synthesized a new form of nitrogen, with a stucture like that of diamond. This was accomplished by means of a crushing force (>110 GPa) at extremely high temperature (2000 K), of course. The result, according to PhysOrg, is a very hard crystal with a lot of energy stored in it, which leads to the possibility of using it as a non-polluting fuel or high-explosive." -
Global Air Pollution, From Above
neutron_p writes "Based on satellite observations, the high-resolution global atmospheric map of nitrogen dioxide pollution makes clear just how human activities impact air quality. I'm a bit surprised not to see that many red blobs above US and the strange one is on the east of Russia." -
360-Degree 3D Imaging
CompSurfer writes "Yesterday, 3Dsolar released information about a new 3D imaging system, it works by somehow projecting onto a rotating screen. According to the story the "Prototype debuts at NVIDIA Oct. 25 in Santa Clara, California and [at] Innovact in Reims, France, October 5-7" I wonder where they are hiding the force field emitter..." -
Going from a 'Web of links' to a 'Web of meaning'
neutron_p writes "Computer scientists from Lehigh University are building the Semantic Web, which will handle more data, resolve contradictions and draw inferences from users' queries. The new improved Web will also combine pieces of information from multiple sites in order to find answers to questions." -
Motion of the Primordial Universe Revealed
neutron_p writes "New results from an instrument located high in the Chilean Andes (the Cosmic Background Imager) are giving researchers a clearer view of what the universe looked like in the first moments following the Big Bang. Cosmologists observe a time in the universe's distant past when atoms were first forming. The findings reveal the first movements between these "seeds" that ultimately led to clusters of early galaxies." -
1 Terabyte Optical Storage Disks
fenimor writes "Physicists at Imperial College London described a new method for potentially encoding and storing up to one Terabyte of data, or 472 hours of film, on one optical disk the size of a CD or DVD. Maybe it won't be as large, as 100TB holographic optical storage, but still should be enough to fit every episode of The Simpsons on one disk. Dr Török, Lecturer in the Department of Physics, believes that the first disks could be on the shelves between 2010 and 2015." -
1 Terabyte Optical Storage Disks
fenimor writes "Physicists at Imperial College London described a new method for potentially encoding and storing up to one Terabyte of data, or 472 hours of film, on one optical disk the size of a CD or DVD. Maybe it won't be as large, as 100TB holographic optical storage, but still should be enough to fit every episode of The Simpsons on one disk. Dr Török, Lecturer in the Department of Physics, believes that the first disks could be on the shelves between 2010 and 2015." -
Turtles Go Wireless
neutron_p writes "Ground-breaking work to investigate the migratory movements of marine turtles in the UK Overseas Territories began on the Caribbean "Emerald Isle" of Montserrat this week. Staff from Government of Montserrat attached a satellite transmitter to 'Montserrat', a 150kg green turtle, which will enable her migratory movements to be logged from space and followed live on the internet at http://seaturtle.org/tracking/ Since leaving Montserrat's shores she has already passed through the waters of St Kitts and Nevis but where will she stop? Picture is here." -
When Galaxies Collide
neutron_p writes "An international team of scientists announced today, they observed a nearby head-on collision of two galaxy clusters. The clusters smashed together thousands of galaxies and trillions of stars. It is the most powerful events ever witnessed. Such collisions are second only to the Big Bang in total energy output. The event was captured with the European Space Agency's XMM-Newton observatory. Scientists are calling the event the perfect cosmic storm: galaxy clusters that collided like two high-pressure weather fronts and created hurricane-like conditions, tossing galaxies far from their paths and churning shock waves of 100-million-degree gas through intergalactic space." -
Deepest Optical Image Of The Universe To Date
fenimor writes "The deepest optical view of the universe, obtained by Hubble Space Telescope, may turn out to be some of the earliest star-forming galaxies. The telescope has looked 95 percent of the way back to the beginning of time, to glimpse whether the hottest stars in these early galaxies may have provided enough radiation to 'cool' the universe after the big bang." -
Deepest Optical Image Of The Universe To Date
fenimor writes "The deepest optical view of the universe, obtained by Hubble Space Telescope, may turn out to be some of the earliest star-forming galaxies. The telescope has looked 95 percent of the way back to the beginning of time, to glimpse whether the hottest stars in these early galaxies may have provided enough radiation to 'cool' the universe after the big bang." -
Sony Adopts Blu-ray Disc PlayStation 3
fenimor writes "Sony announced today that it had begun preparations to adopt Blu-ray Disc ROM (BD-ROM) format as a medium for the next generation PlayStation. Single side double layer Blu-Ray discs have a huge memory size of 54 GB, being an ideal medium to distribute next generation entertainment content from movies and music to computer applications. Next month Sony plans to announce a 200GB 8-layer version of BD-ROM according to MacWorld." -
Wastewater Into Energy
fenimor writes "A lot of electric energy could be produced from a city's wastewater, researchers at University of Toronto have discovered. The research revealed that the wastewater contained enough organic material to potentially produce 113 megawatts of electricity - 5 times more than required to operate wastewater treatment plants."