Urine Powered Battery Developed 286
Saeed al-Sahaf writes "Research investment into developing smaller and cheaper chips to process information in disposable health tests has been significant, but they were still reliant on an external power source. The researchers at Singapore's Institute of Bioengineering and Nanotechnology think they have overcome this problem with their latest urine powered battery. From the article "The battery is composed of paper, soaked in copper chloride, sandwiched between layers of magnesium and copper. The whole thing, once laminated in plastic, is just a millimeter thick, and 6cm by 3cm in size." The breakthrough promises a cheap and disposable power source for home health tests."
Re:Is it powered by urine? (Score:5, Informative)
Are they sure that it's urine powered? (Score:5, Informative)
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mobile search [mwtj.com] - try it on your phone
Wrong (Score:5, Informative)
theoretically you could get 1A at 1.5V by wiring them in parallel, OR 1mA at 1500V by wiring them serial, both outputting 1.5W of power.
Re:Why don't we have hand cranks? (Score:3, Informative)
I have started large trucks by rolling them as well but as for pushing them anywhere well thats not going to happen (I have managed once to push a smaller truck that weighed about 18000 lbs but only a few feet on level ground). I used my Tahoe to pull start a tractor (semi truck) but first un-coupled it from the trailer. Automatic transmissions are a bitch to roll start because you have to get the vehicle up to the torque converters lockup speed before the engine will begin to turn.