universityofoxford
Latest
Scientists use lasers to imitate an exploding star here on Earth
It could be centuries (if ever) before humans can observe the behavior of a supernova first-hand, but scientists at the University of Oxford may have delivered the next best thing. They've recently simulated an exploding star by zapping an extremely thin carbon rod with a powerful laser; the resulting extra-hot blast (1.8 million degrees Fahrenheit) ripped through a chamber much like the real thing, as you can see pictured here. To add an extra dose of realism, the team added a plastic grid that replicated interference from dust and gases.
Researchers testing frugal autonomous car system, aim for $150 price tag (video)
Google certainly has pockets deep enough to trick out self-driving cars with any kind of pricey gear, but researchers at the University of Oxford have begun testing a solution that aims to keep things affordable. Currently, the system leverages an array of low-profile stereo cameras and lasers that rings up at about £5,000 (approximately $7,750), but the next goal is to knock the price down to £500, and eventually to a cool £100 (roughly $150). "Really, we do need to solve the engineering challenges of not relying on expensive sensors, but relying on cheap sensors," Professor Paul Newman told the Telegraph. "But doing some really smart things with those cheap sensor feeds." Rather than a vehicle that acts as a chauffeur at all times, Newman's vision for the modified Nissan Leaf, dubbed RobotCar, is for it to take control on select occasions. While drivers go about their commute, the system composes a 3D map of the car's environs and commits it to memory. When the auto identifies a familiar setting and feels confident about its ability to take the reigns, it could let the driver know it's ready to assume control. Right now, the automobile's been tested on private roads, but the team behind it is working with the UK's Department of Transportation to roll it onto public streets. Head past the jump for a glimpse of RobotCar in action.
Volunteer scientists discover two possible planets, tell NASA it missed a spot
Proving it's not all about edu-mah-cation, a group of casual star-gazers has stumbled upon what might well be a pair of new planets. Following on from gamers' success with complicated medical puzzles, an army of 40,000 online volunteer astronomy nerds signed up to the Planet Hunters project to help mine through NASA data. One of the possible planets they discovered is roughly two and a half times the size of Earth, while the other a whopping eight times bigger than this revolving ball of blue and green we call home. The project uses data from NASA's Kepler telescope, which registers fluctuations in brightness as objects pass in front of distant stars -- a setup that's helped scientists discover 1,235 potential alien planets in its first four months. Obviously, though, the technology isn't perfect, which is where the project's muggle volunteers (assisted by Oxford and University of Chicago researchers) come in. They've been combing through NASA's readings and are now sifting through the next 90 days of Kepler observations. [Image credit: NASA]
Prototype glasses use video cameras, face recognition to help people with limited vision
We won't lie: we love us a heartwarming story about scientists using run-of-the-mill tech to help people with disabilities, especially when the results are decidedly bionic. Today's tale centers on a team of Oxford researchers developing sensor-laden glasses capable of displaying key information to people with poor (read: nearly eroded) vision. The frames, on display at the Royal Society Summer Science Exhibition, have cameras mounted on the edges, while the lenses are studded with lights -- a setup that allows people suffering from macular degeneration and other conditions to see a simplified version of their surroundings, up close. And the best part, really, is that the glasses cull that data using garden-variety technology such as face detection, tracking software, position detectors, and depth sensors -- precisely the kind of tech you'd expect to find in handsets and gaming systems. Meanwhile, all of the processing required to recognize objects happens in a smartphone-esque computer that could easily fit inside a pocket. And while those frames won't exactly look like normal glasses, they'd still be see-through, allowing for eye contact. Team leader Stephen Hicks admits that vision-impaired people will have to get used to receiving all these flashes of information, but when they do, they might be able to assign different colors to people and objects, and read barcodes and newspaper headlines. It'll be awhile before scientists cross that bridge, though -- while the researchers estimate the glasses could one day cost £500 ($800), they're only beginning to build prototypes.
Digicam hack simultaneously captures stills and high speed video on the cheap
When researchers at the University of Oxford needed to precisely sync high-speed video with high resolution stills, they had a hell of a time finding an off-the-shelf solution that worked with any degree of accuracy. Instead, the crazy kids hacked together a home cinema projector and a consumer-level digicam to split every frame of video captured by the camera into sixteen frames (albeit with lower resolution). Once that goes down, the frames can either be played in succession for up to 400 fps video, or assembled into one high-res still image. Although originally designed for research purposes -- to capture images of cells or the human heart in action, for instance -- the team is betting that the tech has applications ranging from CCTV to sports photography. For more info, check out the video after the break. [Warning: source link requires subscription]
Mad scientists figure out how to write memories to brains, take over Earth
Call us crazy, but we're guessing one Gero Miesenböck of the University of Oxford has been watching just a wee bit too much Fringe. Gero here, along with a few of his over-anxious colleagues, has seemingly figured out a way to actually write memories onto a fruit fly's brain using only a laser pen and three-fourths of a Ouija board. We know what you're thinking, and we're thinking the same. But all terrifying thoughts aside, what if boffins could burn memories of hard lessons learned into our minds without us having to suffer through them first? You know, like upgrading to Snow Leopard.
Transparent aluminum! Would that be worth somethin' to ya, eh?
It's hard to say if boffins at Oxford University got their inspiration from Nimoy and Co., but one thing's for sure: they aren't joking about the creation of transparent aluminum. In what can only be described as a breakthrough for the ages, a team of mad scientists across the way have created "a completely new state of matter nobody has seen before" by blasting aluminum walls (around one-inch thick) with brief pulses of soft X-ray light, each of which is "more powerful than the output of a power plant that provides electricity to a whole city." For approximately 40 femtoseconds, an "invisible effect" is seen, giving the gurus hope that their experiment could lead to new studies in exotic states of matter. For a taste of exactly what we mean, feel free to voice command your PC to jump past the break. Or use the keyboard, if you're feeling quaint.
