Urchin sends along a New Scientist writeup on Microsoft Research's nanoTouch prototype, a way of operating a touch screen from the rear (video here). The prototype will be presented at the Computer and Human Interaction conference in Boston, Mass., in April 2009. Coming soon to a wristwatch or neck pendant near you. "Electronic devices have been shrinking for years, but you might be forgiven for thinking that one that's only a centimeter across would be just too difficult to operate. Microsoft Research's new nanoTouch device suggests otherwise. Touch-screens are difficult to control with any precision — the fingers get in the way of the tiny targets you're trying to hit. But putting the touch interface on the rear of the screen instead gives users more precision because they can still see the whole screen as they interact with it. Microsoft Research has produced a prototype device called nanoTouch with a rear-mounted touch interface. User tests show it lets users accurately and reliably hit targets just 2 millimeters across on a screen under a centimeter across."

Richard Kelleher writes "It seems the current design of multi-core processors is not good for the design of supercomputers. According to IEEE: 'Engineers at Sandia National Laboratories, in New Mexico, have simulated future high-performance computers containing the 8-core, 16-core, and 32-core microprocessors that chip makers say are the future of the industry. The results are distressing. Because of limited memory bandwidth and memory-management schemes that are poorly suited to supercomputers, the performance of these machines would level off or even decline with more cores.'"

mcgrew writes with news that a study done by the Pew Internet & American Life Project has found game playing is all but universal among teens, and it provides a "significant amount of social interaction and potential for civic engagement." 97% of teens responding to the survey said they played games (75% played weekly or more often), and roughly two-thirds of teens use games as a social experience. The full report (PDF) and the questionnaire with answer data (PDF) are both available for viewing. From the report: "Youth who take part in social interaction related to the game, such as commenting on websites or contributing to discussion boards, are more engaged civically and politically. Youth who play games where they are part of guilds are not more civically engaged than youth who play games alone."

toomin writes "Reviews of the latest Ubuntu version, 8.04 Hardy Heron, are everywhere, but most of them are undertaken by geeks familiar with Linux. This guy sits his girlfriend down at a brand-new Ubuntu installation and asks her to perform some basic tasks. Some of them are surprisingly easy, others frustrate and annoy. There are lots of little usability tweaks he stumbles upon just by seeing the desktop experience from the point of view of the mainstream user."

PRB_Ohio takes us to Space.com for a story about NASA's plutonium shortage, and how it may affect future missions to the far reaches of the solar system. The U.S. hasn't produced plutonium since 1988, instead preferring to purchase it from Russia. We discussed the U.S. government's plans to resume production in 2005, but those plans ended up being shelved. If NASA is unable to find an additional source, it could limit missions that take spacecraft too far from the Sun. Quoting: "Alan Stern, NASA associate administrator for science, ... said he believed the United States had sufficient plutonium-238 on hand or on order to fuel next year's Mars Science Lab, an outer planets flagship mission targeted for 2017 and a Discovery-class mission slated to fly a couple years earlier to test a more efficient radioisotope power system NASA and the Energy Department have in development. To help ensure there is enough plutonium-238 for those missions, NASA notified scientists in January that its next New Frontiers solicitation, due out in June, will seek only missions that do not require a nuclear power source."

Glyn Moody writes "Until now, the received wisdom has been that GNU/Linux will never take off with general users because it's too complicated. One of the achievements of the popular new Asus Eee PC is that it has come up with a tab-based front end that hides the complexity. But maybe its real significance is that it has pushed down the price to the point where the extra cost of using Microsoft Windows over free software is so significant that ordinary users notice. As Moore's Law drives flash memory prices even lower, can ultraportables running Microsoft Windows compete?"

Roland Piquepaille writes "Janus particles, which take their name from a Roman god with two faces, are microscopic 'two-faced' spheres whose halves are physically or chemically different. Now, U.S. researchers have shown that some of these Janus microparticles can move like stealthy submarines when an alternating electrical field is applied to liquid surrounding them. This could lead to new kinds of self-propelling microsensors or means of targeted drug delivery."

TheProcess writes "Back in February 2003, IBM predicted that AMD would be dead in 5 years (original article here), with IBM and Intel the only remaining players in the chip market. Well, 5 years have passed and AMD is still alive. However, its finances and stock price have taken a serious beating over the last year. AMD was once a darling in this community — the plucky, up-and-coming challenger to the Intel behemoth. Will AMD still be here in 5 years? Can they pose a credible competitive threat to Intel's dominance? Do they still have superior but unappreciated technology? Or are they finally old hat? Can they really recover?"

doconnor writes "JPL announced that Ulysses' mission will be ending after 17 years. The power generated by the decay of a radioactive isotope has been slowly decreasing. To conserve power its main transmitter was shut off. Unfortunately due to a fault in its power supply it cannot be turned back on. The team plans to continue operating the spacecraft in its reduced capacity, using the alternate S-band transmitter, for as long as they can over the next few weeks." Congratulations to all the geniuses involved in this one.

tringtring alerts us to news that the National Science Foundation has requested $20 million in funding to work on "Science and Engineering Beyond Moore's Law." The PC World article goes on to say that the effort "would fund academic research on technologies, including carbon nanotubes, quantum computing and massively multicore computers, that could improve and replace current transistor technology." tringtring notes that quantum computing has received funding on its own lately, and work on multicore chips has intensified the hunt for parallel programming. Also, improvements are still being made to current transistor mechanics.

jcgam69 writes "Saturn's orange moon Titan has hundreds of times more liquid hydrocarbons than all the known oil and natural gas reserves on Earth, according to new Cassini data. The hydrocarbons rain from the sky, collecting in vast deposits that form lakes and dunes."

inghamb87 writes "Scientists have studied flocks of starlings and cracked the mystery behind the birds' ability to fly in large formations, and regroup quickly after attacks, without getting confused and ramming into each other. While the information is cool, some scientists seem to think that the best use of this knowledge is not to aid our appreciation of nature, but to make more effective robot swarms. We've talked about swarming robots many times before, but usually researchers look to insects for inspiration."