Rice University scientists have constructed the world’s smallest car — a single molecule “nanocar” that contains a chassis, axles and four buckyball wheels.
read more | digg story
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Many of us tried the old “Two tin cans connected by a string” experiment as kids. [Michael Rainey, AA1TJ] never quite forgot it. Back in 2009, he built “El Silbo”, a ham radio transmitter powered entirely by his voice. El Silbo is a Double Side Band (DSB) transmitter for 75 meters. via Pocket http://hackaday.com/2013/11/26/amateur-radio-transmits-1000-miles-on-voice-power/
I Wore a Bionic Leg, And I Never Wanted To Take It Off Again
Say you’ve just had ACL surgery. Or you’re recovering from a bad break. Or, worse, you suffer a stroke, or MS, or spinal or neurological damage. Regaining the power to walk is one of the toughest things you can do, and it may be impossible without a crutch, rail, or physical therapist to lean on. […]