Tag Archives: universityofwashington

Magnets could soon track your fingers in virtual reality

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In an ideal world, you'd grab objects in virtual reality with your hands, like you do in real life. However, that's not usually how it works -- outside of some specialized gloves, you're left using abstract controllers. Oculus and University of Washi...

Peripheral Vision 003: Professor John Slough on how nuclear power could get us to Mars in 30 days

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Peripheral Vision 003 Proessor John Slough on how nuclear fusion could get us to Mars

"We thought of a clever idea of how you might use fusion to do manned space travel," explains John Slough. The University of Washington research professor discusses such seemingly impossible ideas with the cavalier nature one might otherwise reserve for picking out shirts in the morning. The white-haired academic wore his sandals to the office today, chuckling on occasion about the grandiosity of it all. Here in a nondescript business park in Redmond, WA, Slough and fellow UW staff members think they've found the secret to speedy interplanetary travel: small-scale nuclear fusion.

"A realistic trip to Mars, as NASA has studied extensively, requires 1,680 days," Slough says, standing in front of the mess of electronics his company has taken to calling The Fusion Engine. "It required 11 launches from the most powerful rockets we have. Those two things would probably eliminate it. It would be something like $20 billion just to put the stuff in space. We thought that if you could exhaust the propellant at a speed that's comparable to the speed you want to go, which you can do with a different energy source, you can reduce that trip time to as short as 30 days."

It's a lot to wrap one's head around, how imploding metal can heat plasma to fusion temperature in the neighborhood of hundreds of millions of degrees, but Slough breaks it all down on the latest Peripheral Vision with the patience and simple language of the high school science teacher we all wished we'd had.

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Researchers link brains, control each other’s actions via the internet (video)

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Researchers link brains, control each other's actions via the internet (video)

Human brain-to-brain interfacing seems like the stuff of fiction (Pacific Rim, anyone?), but researchers at the University of Washington have made it a reality. A team led by faculty members Rajesh Rao and Andrea Stocco claim to have pioneered the world's first human-to-human experiment of the sort. Rao and Stocco were placed in different buildings and hooked up to two devices to record, interpret and send their brain signals via the internet. The sender (Rao) wore an EEG machine while the receiver (Stocco) was connected to a transcranial magnetic stimulation coil. The experiment was performed with a simple arcade-style video game, the objective of which was to shoot baddies out of the sky. Rao watched the screen and visualized lifting his hand to press the space bar to fire, but Stocco was the trigger man. Clear across campus, Stocco's finger tapped the space bar at the appropriate time, eliminating the target, despite being unable to hear or see the game's display. To learn more, check out the video after the break or the source link below.

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Via: GeekWire

Source: University of Washington

University of Washington harnesses RF and TV waves for battery-free wireless devices (video)

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The problem with power is that, eventually, it runs out. To help cope with this inevitability, scientists at the University of Washington have developed prototype "ambient backscatter" devices that can passively harness the juice in radio and TV waves. Because they don't generate their own signal, these devices can get by on the juice they siphon from the air -- communicating by absorbing or reflecting binary information from existing signals, instead. According to the researchers, these signals can travel as far as 6.5 miles from a TV tower at speeds of 1KB per second.

Although the project is still in its infancy, its creators are already thinking up practical applications. Ambient backscatter tags could be built into buildings or bridges, for instance, and alert monitoring stations to potential structural damage or defects. The team also imagined tagged keys and furniture, warning a user if they accidentally dropped something between the couch cushions -- all without an energy source. This type of tech could bring us closer to the internet-of-things future we've been promised, allowing smart communications to exist virtually anywhere. The Huskies said this could even enable a dead smartphone to send TV signal-powered text messages -- which could be great considering how often we forget to charge our handsets.

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Via: Dvice

Source: University of Washington

Scientists build soft, transparent contact lens displays with nanomaterials

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Scientists build soft, transparent contact lens displays with nanomaterials

Of the contact lens display prototypes that we've seen so far, few if any are focused on comfort -- a slight problem when they're meant to sit on our eyeballs. A collaboration between Samsung and multiple universities may solve this with display tech that's meant to be cozy from the start. By putting silver nanowires between graphene layers, researchers have created transparent conductors that can drive LEDs while remaining flexible enough to sit on a contact lens. Current test lenses only have one pixel, but they're so soft that rabbits can wear them for five hours without strain. Scientists also see the seemingly inevitable, Glass-like wearable display as just one development path -- they're working on biosensors and active vision correction. While there's still a long way to go before we reach a cyberpunk future of near-invisible displays, we may finally have some of the groundwork in place.

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Via: MIT Technology Review

Source: ACS Publications

WiSee uses WiFi signals to detect gestures from anywhere in your house (video)

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DNP WiSee video

Have you always dreamed of controlling your TV by flailing in the next room? Researchers at the University of Washington have just the system for you: WiSee, a gesture-recognition interface that uses WiFi to control things like sound systems and temperature settings. Since WiFi signals are capable of passing through walls, WiSee can detect gestures made from neighboring rooms, breaking free from the line-of-sight method relied on by devices like Kinect and Leap Motion. Unlike those two, WiSee doesn't require an additional sensor; the software can theoretically be used with any WiFi-connected device and a router with multiple antennae to detect Doppler shifts created by movement. The prototype was tested in both an office environment and a two-bedroom apartment, and the team reported a 94% accuracy with a set of nine distinct gestures. If you watch the video, embedded after the break, you'll notice that each user performs an identifying motion prior to the control gesture. It's a trick the team picked up from studying Kinect's solution for distinguishing between specific individuals in crowded rooms. Intrigued? Head over to the source link to read the report in full.

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Via: The Verge

Source: University of Washington

Gigabit Squared heading high-speed fiber and wireless internet initiative in Seattle

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Gigabit Squared heading high-speed fiber and wireless internet initiative in Seattle

Seattle may have lost its high-velocity hoops team, but that doesn't mean it's satisfied with anything but speedy internet. The city has come to an agreement with Gigabit Squared (GB2) to build an unnecessarily wordy "fiber-to-the-home/fiber-to-the-business broadband network." With the University of Washington taking care of "community leadership" (as part of the Gig. U initiative), GB2 plans to utilize Seattle's excess fiber infrastructure, and create more, to deliver new internet options in three ways. In addition to the wired fiber network, the Gigabit Seattle project sees the development of a "dedicated gigabit broadband wireless umbrella" for beaming up to 1 Gbps from radio transmitters to others in direct view, as well as municipal WiFi-like services.

At this stage, only 12 "demonstration" areas are earmarked in the proposal, although the radio-based wireless "umbrella" has the potential to extend that coverage. Gigabit Squared now needs to find the cash to get going if it wants to meet the distant operational target of "year-end 2014." It's worth remembering that plenty of city-wide internet initiatives have failed before this one, and only a Memorandum of Understanding and a Letter of Intent have been signed by all the involved parties -- agreements which aren't necessarily binding. Full details of the plan are available in PR form and at the source link below, or if you're done with prose, a map of the 12 demo neighborhoods hopefully getting hooked up can be found after the break.

[Thanks, Gavin]

Continue reading Gigabit Squared heading high-speed fiber and wireless internet initiative in Seattle

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Source: Gigabit Seattle