Light-emitting diodes, or LEDs, are the most efficient and environmentally friendly light bulbs on the market. But they come at a higher up-front price than other bulbs, especially the ones with warmer and more appealing hues. Researchers at the University of Washington have created a material they say would make LED bulbs cheaper and [...]
Tag Archives | Computer Science
Wi-Fi Signals Enable Gesture Recognition Throughout Entire Home
Forget to turn off the lights before leaving the apartment? No problem. Just raise your hand, finger-swipe the air, and your lights will power down. Want to change the song playing on your music system in the other room? Move your hand to the right and flip through the songs. University of Washington computer [...]
Beer-Pouring Robot Programmed to Anticipate Human Actions
A robot in Cornell’s Personal Robotics Lab has learned to foresee human action in order to step in and offer a helping hand, or more accurately, roll in and offer a helping claw. Understanding when and where to pour a beer or knowing when to offer assistance opening a refrigerator door can be difficult [...]
Cradle Turns Smartphone Into Handheld Biosensor
Researchers and physicians in the field could soon run on-the-spot tests for environmental toxins, medical diagnostics, food safety and more with their smartphones. University of Illinois at Urbana-Champaign researchers have developed a cradle and app for the iPhone that uses the phone’s built-in camera and processing power as a biosensor to detect toxins, proteins, [...]
Soft Matter Offers New Ways to Study How Materials Arrange
A fried breakfast food popular in Spain provided the inspiration for the development of doughnut-shaped droplets that may provide scientists with a new approach for studying fundamental issues in physics, mathematics and materials. The doughnut-shaped droplets, a shape known as toroidal, are formed from two dissimilar liquids using a simple rotating stage and an [...]
Scientists Use Crowd-Sourcing to Help Map Global Carbon Dioxide Emissions
Climate science researchers from Arizona State University are launching a first-of-its-kind online “game” to better understand the sources of global warming gases. By engaging “citizen scientists,” the researchers hope to locate all the power plants around the world and quantify their carbon dioxide (CO2) emissions. The game officially begins today and is housed on [...]
Heady Mathematics: Describing Popping Bubbles in a Foam
Bubble baths and soapy dishwater, the refreshing head on a beer and the luscious froth on a cappuccino. All are foams, beautiful yet ephemeral as the bubbles pop one by one. Two University of California, Berkeley, researchers have now described mathematically the successive stages in the complex evolution and disappearance of foamy bubbles, a [...]
New Zooming Technique for Entering Text Into Smartwatches
Technology blogs have been abuzz that smartwatches may soon be on their way from companies such as Apple, Google, Samsung and Microsoft. But as capable as these ultra-small computers may be, how will users enter an address, a name, or a search term into them? One solution is an iterative zooming technique developed and tested [...]
With Wave of the Hand, Researchers Create Touch-Based Interfaces
Researchers previously have shown that a depth camera system, such as Kinect, can be combined with a projector to turn almost any surface into a touchscreen. But now researchers at Carnegie Mellon University have demonstrated how these touch-based interfaces can be created almost at will, with the wave of a hand. CMU’s WorldKit system [...]
Battery Low? Give Your Mobile Some Water
A power source for your mobile phone can now be as close as the nearest tap, stream, or even a puddle, with the world’s first water-activated charging device. Based on micro fuel cell technology developed at KTH Royal Institute of Technology in Stockholm, the MyFC PowerTrekk uses ordinary water to extend battery life for [...]
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