As one of the most rapidly evolving branches of solid-state lighting technologies, light emitting diodes (LEDs) are gradually replacing conventional lighting sources due to their advantages in energy saving and environmental protection. We have developed an inorganic–organic hybrid phosphor family based on I–VII binary semiconductors. The hybrid phosphor materials are totally free of rare-earth metals. They can be synthesized by a simple, low-cost solution process and are easily scalable.
Is it a solar cell? Or a rechargeable battery?
Actually, the patent-pending device invented at The Ohio State University is both: the world’s first solar battery.
How about you create a pan that does the simple things for you, such as take the temperature or measure the amount of food, and lets you know whether you have the ingredients right?
A Virginia-based company is working on a radar gun that will detect texts sent by those driving. The device, however, is awaiting legislative approval before it can be produced for use.
Using eight flexible legs and a soft web, a robotic octopus can scull through the water like its cephalopod inspiration.
The new so-called “SuperSpeed” USB 3.1 standard will deliver a maximum 10Gbps when transferring data, which is twice the speed promised in USB 3.0, but not nearly as fast as the 20Gbps promised by Thunderbolt 2, which just started showing up late last year. Still, Ravencraft said that USB 3.1 would be capable of driving 4K displays and would be able to deliver data and power simultaneously.
Digitsole has announced an interactive insole that's designed to heat your feet. Connecting to your smartphone over Bluetooth 4.0, you use the companion app for iOS or Android to set the temperature to a maximum of 40 C/104 F. Of course, no piece of wearable technology is complete without some sort of activity tracking, so in addition to keeping your little piggies warm, the smart insoles will monitor the distance that you've walked and the calories that you've burned.
Computer scientists have created a low-cost, autonomous micro-robot which in large numbers can replicate the behaviour of swarming honeybees
Colias - named after a genus of butterfly - is an open-platform system that can be used to investigate collective behaviours and be applied to swarm applications.
A Stanford engineering team, in collaboration with researchers from the University of California, Berkeley, has built a radio the size of an ant, a device so energy efficient that it gathers all the power it needs from the same electromagnetic waves that carry signals to its receiving antenna – no batteries required.
The Chargeboard powers itself, or charges your phone, by gathering energy as the board rolls. A dynamo is built into the back wheel, so as you push the board, you generate power. Being on it for an hour charges a battery enough that it can recharge your phone several times, but that’s not all the Chargeboard offers. It’s also been built to serve as a dock, so when you’ve arrived at your destination, you can flip over your board, plug in your phone, and start listening to some music. It’s a green way to dock and charge your phone.