http://www.sciencedaily.com/releases/2008/09/080922095435.htm
Tuesday, September 23, 2008
tree power
MIT has figured out a way to plug a remote environmental sensor directly into a tree using the very small amount of electrical power every tree generates to recharge the sensor's battery and transmit the signal over the network of sensors and eventually back to a data collection station. this is amazing
http://www.sciencedaily.com/releases/2008/09/080922095435.htm
http://www.sciencedaily.com/releases/2008/09/080922095435.htm
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1 comment:
Awesome! In case anyone is looking for the short answer, the article says the electricity comes from "An imbalance in pH between a tree and the soil it grows in", which I guess is different than how potato batteries work.
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