August 26, 2010, 9:15 pm
This 'tree-power' article is pretty interesting. For those of you who may be well-versed in electric vehicles and their consumption, how many trees (on average) would it take to provide enough juice to charge an 'e-vehicle's' battery pack?
'Electrical circuit runs entirely off power in trees'
"You've heard about flower power. What about tree power? It turns out that it's there, in small but measurable quantities. There's enough power in trees for University of Washington researchers to run an electronic circuit, according to results to be published in an upcoming issue of the Institute of Electrical and Electronics Engineers' Transactions on Nanotechnology.
"As far as we know this is the first peer-reviewed paper of someone powering something entirely by sticking electrodes into a tree," said co-author Babak Parviz, a UW associate professor of electrical engineering.
A study last year from the Massachusetts Institute of Technology found that plants generate a voltage of up to 200 millivolts when one electrode is placed in a plant and the other in the surrounding soil. Those researchers have since started a company developing forest sensors that exploit this new power source.
http://www.physorg.com/news171643486.html
Whoops...... sorry Daweii...... I missed your earlier question on the same topic.