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  • Alt-week 9.8.12: Moon farming, self powered health monitors and bringing a 50,000 year-old girl to life

    by 
    James Trew
    James Trew
    09.08.2012

    Alt-week peels back the covers on some of the more curious sci-tech stories from the last seven days. Some weeks things get a little science heavy, sometimes it's a little on their weird side, and there's usually a bit of space travel involved, but these week's trend seems to be "mind-blowing." Want to grow carrots on the Moon? We got you covered. How about bringing a 50,000 year-old ancient human back to life? Sure, no biggie. Oh but what about a solar eruption that reaches some half a million miles in height. We've got the video. No, really we have. Mind blown? This is alt-week.

  • Georgia Tech engineers pull energy out of atmospheric hat, go on electromagnetic scavenger hunt

    by 
    Joseph Volpe
    Joseph Volpe
    07.11.2011

    Mankind's about to plunge into the depths of a wireless sensor-powering ether binge -- braincell annihilating vapors not included. Spearheaded by Georgia Institute of Technology's professor Manos Tentzeris and his engineering team, this ambient energy scavenging tech harnesses electromagnetic frequencies in the 100MHz - 15GHz range -- anything from your FM car radio to radar -- and converts it into a useable DC power source. So, it's free energy -- kind of. The cheap, self-powering paper or flexible polymer-based sensors are created using standard inkjet printers and Tentzeris' "unique in-house recipe" of circuit-building silver nanoparticles. Current testing hasn't yet yielded significant enough wattage to power your PS3 Slim, but it could soon via the help of supercapacitors and future solar cell integration. Imagine clothing embedded with health-monitoring biometric sensors, airport security run by something other than aloof TSA agents, or even spoilage-aware drink cartons -- milk that tells you when it's gone sour. The invisible radio band-charged possibilities are endless, but with storage still in the microwatt to one milliwatt range, it's more concept than solid vaporware reality.