MicroMachines
Latest
CMU researchers control microbots with mini magnets
Pardon the alliteration, but we're excited about the proposition here. For years -- millenniums, even -- scientists have been trying to figure out how to manipulate minuscule devices with magnets, and at long last, we've got a breakthrough in the field. Metin Sitti, an associate professor of mechanical engineering at Carnegie Mellon University, is credited with creating a new control technique that could allow microscopic machines to "one day deliver drugs directly to a sickly cell or a tumor." Essentially, the diminutive bots glide across a glass surface covered with a grid of metal electrodes, and you're just a click away (it's the Read link, just so you know) from seeing a live demonstration on how they can be used to "anchor one or more microbots while allowing others to continue to move freely around the surface." Good times.
Microscopic wheel will spin straight to your heart, literally
Sure, you've got an iPod Nano in your pocket and a VIA Nano in your custom PC, but we're willing to bet you don't have any nanomachines in your arteries at the moment. Two scientists from the Universities of Sheffield and Barcelona, Ramin Golestanian and Pietro Tierno, hope to change that by turning your bodily fluids into pathways for their tiny devices. The things are comprised of two beads, measuring 1 and 3 micrometers, attached to each other using strands of DNA. A magnetic field gets 'em spinning in the right direction and the increased surface area of the larger bead moves the contraption forward at a blistering 1 micrometer per second (shown in a short but sweet video below). Now, if the good doctors could just build 11 of these things and get them in a 4-3-3 formation we'd finally know where to place our money for next year's nanosoccer RoboCup Open.[Via Scotsman.com]
MIT gurus concoct Li-ion batteries that build themself
It's fairly reassuring that if those rollable, water-powered, paper, and ultracapacitor-based battery ideas don't exactly pan out, we've got yet another idea coming out of MIT that just might gain traction. Apparently, scientists at the university are working on self-assembling Li-ion cells when not thinking about what witty remark they'll plaster on their own spacecraft, and it seems that Yet-Ming Chiang and his colleagues have selected electrode and electrolyte materials that, when combined, "organize themselves into the structure of a working battery." By measuring various forces with "ultraprecise atomic-force microscope probes," the researchers were able to choose materials with just the right combination of attractive and repulsive forces, essentially creating a perfect environment for batteries that could build themselves. Additionally, a current prototype has displayed the ability to be discharged and recharged "multiple times," and while commercial uses aren't nailed down just yet, the backers are already envisioning how the technology could be used in minuscule devices where standard cells won't exactly fit in. Let's just hope this stuff doesn't cause too much friction whilst building itself up, eh?[Via TheRawFeed]
Racing in your pocket: Pocket Racers
Konami really loves the PSP. Even more than terrorists. A few days ago, they announced the not-so-imaginatively named Pocket Racers, which places you in Micro Machines-sized racers speeding through real-world environments. It's like Honey, I Shrunk the Kids... but with cars! Well, that was a lame analogy, but at least the screens they've released look pretty damn sharp.[Via PSP World]
