I have compiled a short list of my favorite ones:
The Smart Thermostat
the EnergyHub Dashboard, a little device, with a screen, that can talk wirelessly to your furnace and your various appliances and let you know exactly how much electricity (or gas) each one is using and how much it's costing you. It can also turn appliances on and off and raise or lower the temperature in your house so you can rein in the real power hogs.The $20 Knee
A team of Stanford engineering students has designed a knee that's not only dirt cheap — just $20 — but also mimics the natural joint's movements. The JaipurKnee comprises five pieces of plastic and four nuts and bolts. It requires no special tools and takes just a few hours to manufacture.
The High-Speed Helicopter
Sikorsky's X2 Technology helicopter aims to annihilate that speed barrier. Unlike ordinary choppers, which pair a single rotor on top with an antitorque tail rotor, the X2 has two main rotors spinning in opposite directions and an airplane-like propeller at the rear. This highly stable setup should allow the X2 to cruise at a zippy 290 m.p.h. (467 km/h) — about the same speed as some small turboprop planes.
The JaipurKnee is pretty cool!
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