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Scientists set lasers on cells, end up playing Pong
Researchers have devised plenty of innovative ways of viewing living cells, but their options are a bit more limited when it comes to actually manipulating cells without, you know, destroying them. Scientists at the University of California, Los Angeles have now come up with one promising new possibility, however, using lasers instead of the fixed electrodes more commonly used today. Those, as you might expect, don't hit the cells directly, but are rather used to shine light on a "high-tech Petri dish," which has a grid of light detectors built into its floor and sets of transparent electrodes on the top and bottom. When lit up in a pattern of a circle or square, the cells can then be isolated and moved about at will or, conceivably, even be used for a game of Pong. Check out the video after the break to see for yourself.
Nine HDTVs form 3D visualization rig, but only in the name of science
If you're the kind of person who happens to have a number of LCD HDTV's lying around, we suggest you give University of California, San Diego's Calit2 Visualization Team a ring. Researchers from the group have constructed a three-column, nine-panel 3D display using flat screens from JVC, stereoscopic glasses, and "game PCs with high end NVIDIA game engines." Dubbed NexCAVE, it's a much more inexpensive version of the its projector-powered StarCAVE used for data analysis, although its range is more limited -- on the plus side, however, since this is LCD, it can be used in bright rooms. At 6,000 x 1,500 pixel, the resolution isn't as mind-blowing as we'd hope, but the team is currently building a version for Saudi Arabia's King Abdullah University for Science and Technology (KAUST) that's 7 columns (totaling 21 panels) and 15,000 x 1,500 resolution. If nothing else, any chance we can play Mirror's Edge on this? Video demonstration of the nine-panel rig after the break. [Via PhysOrg]
Hang your head, Sequoia e-voting machine; you've been hacked again
Oh, Princeton University, won't you leave the poor electronic voting machines alone? Haven't they suffered enough without you forming teams with researchers from the University of California, San Diego and the University of Michigan to spread their private moments even further asunder? That group of brainiacs came together to devise a new, even easier hack that allows someone with no special access to take complete control of a Sequoia AVC Advantage voting machine -- an example of which the team purchased legally at a government auction. The machine does not allow modifications to its ROM (because it has an O in the middle), but the team was able to use a technique called return-oriented programming to modify how the machine executes existing code, taking the bits they want and, ultimately, devising a way to re-program its behavior by simply inserting a cartridge into a slot -- presumably after blowing on it for good luck. The hack only works until the machine is powered off, but the attack even foils that, intercepting the switch signal and making the system only appear to power down. Today's top tip for electronic voting polling stations: unplug your boxes overnight. [Via Digg]
Nanotech research could fit 10 trillion bits of data onto disk the size of a quarter
Two researchers, Ting Xu and Thomas Russell, are in the midst of developing some potentially sweet nanotech that could allow storage of around 10.5 terabits (or 10 trillion bits) of data on a space the size of a quarter. They're currently working on the technique, which starts with a sliced crystal (sapphire or silicon) sliced at a jagged angle, which is then heated to 2,700 degrees Fahrenheit which causes the crystal to reorganize itself into a sawtooth pattern at three nanometer angles. The crystal is then sprayed with a custom polymer, dried, and treated again with a different solvent, after which the polymer then settles into a hexagonal pattern on the surface of the crystal. Sound complicated? Well, it is, and all the kinks aren't quite work out, but the technique essentially provides a path to creating a self-assembling disk with far more storage capacity than anything currently available. The current state of the research will be detailed in the upcoming issue of Science magazine. We'll believe it when we see it, but keep up the good work, guys!
Cyborg beetles commandeered for test flight, laser beams not (yet) included
Remember that DARPA initiative from a few years back to create cyborg insects? With funding from the agency, researchers at the University of California, Berkeley have managed to control a rhinoceros beetle via radio signals, demonstrated in a flight test shown on video at this week's IEEE MEMS 2009 conference. A module placed on the arthropod uses six electrodes affixed to the brain and muscles to commandeer its free will. The device weighs 1.3g -- much less than the 3g payload these guys can handle, and with enough wiggle room to attach sensors for surveillance. Ultimately, scientists say they want to use the beetle's own sensors -- namely, its eyes -- to capture intel and its own body energy to power the apparatus. Keep an eye on this one, we expect it to play a major role in the impending robots vs. humans war.[Thanks, Mimosa]
Flying plasmonic lens system could lead to denser chips / disks
Last we heard, IBM was busy extending optical lithography down to 30-nanometers in order to keep Moore's Law intact, and some two years later, the process is still being honed by engineers at the University of California, Berkeley. Reportedly, gurus there with IQs far greater than ours have developed a new patterning technique (plasmonic nanolithography) that could make "current microprocessors more than 10 times smaller, but far more powerful." Additionally, professor Xiang Zhang asserts that this same technology could eventually "lead to ultra-high density disks that could hold 10 to 100 times more data than disks today." The secret to the madness is a flying plasmonic head, which is compared to the arm and stylus of an LP turntable; the setup enables researchers to "create line patterns only 80-nanometers wide at speeds up to 12-meters per second, with the potential for higher resolution detail in the near future." In layman's terms? That CPU you purchased last month will, in fact, be old hat in due time.[Via Slashdot]
California white hat hackers: 3, Diebold and friends: 0
In a move which will bolster your undoubtedly high sensations of "faith" in the US voting process, a group of University of California researchers have just hacked their way through security on nearly every voting machine certified by the state of California. According to Secretary of State Debra Bowen, who initiated these tests, the team was able to "bypass physical and software security in every machine they tested." The group, which was sanctioned by the state, was given full access to the machines, as well as their source code and manuals, leaving some to argue that the test doesn't accurately depict how vulnerable the machines are -- because we all know how hard it is for hackers to get their hands on that kind of stuff. The report will affect whether or not Bowen approves the systems for use throughout California in its upcoming presidential primaries. It looks like 2008 is going to be an exciting year, to say the least.[Via The Raw Feed]
Autonomous robotic fleas could create distributed sensor network
We've seen a fair bit of mesh networking approaches lately, and thanks to a unusual project going on at the University of California, Berkeley, the next great ad hoc network could be started by a horde of bugs. Sarah Bergbreiter has developed an "autonomous robotic flea has been developed that is capable of jumping nearly 30 times its height," thanks to what could possibly be hailed as the "world's smallest rubber band." Interestingly, the creator hopes that the minuscule bugs could eventually be used to "create networks of distributed sensors for detecting chemicals or for military-surveillance purposes." The Smart Dust initiative could eventually be expanded to grow wings, but for now the solar-powered bugger will stick to hoppin' via a "microcontroller to govern its behavior and a series of micro electromechanical systems (MEMS) motors on a silicon substrate."[Via BoingBoing]
