On 23.11.2010 11:26 PM, Bernhard Kuemel wrote:
On 11/23/2010 11:20 PM, Michael Bauer wrote:
On Tue, Nov 23, 2010 at 10:50:19PM +0100, Bernhard Kuemel wrote:
On 11/23/2010 09:45 PM, Sven Guckes wrote:
* Damian Stewart <damian.ml@frey.co.nz> [2010-11-23 14:31]:
well, it still just _feels_ wrong to go and throw batteries around...
biodigradable batteries, anyone? now *that* would cause a craze! :)
Stick some copper and zinc in a lemon. Copper is harmful to the environment, though. A graphite rod might do instead.
Do we have to use imported fruits? Just think of the carbon footprint!
Local vinegar probably works, too.
A Zamboni pile might work for centuries. Bit bulky for a throwie, though.
Uppsala University: "green algae -> green battery" http://www.uu.se/en/node1038 Sony: "Bio Battery - sugar" http://www.sony.net/SonyInfo/technology/technology/theme/bio_01.html Fuji: "EnviroMAX™ ... if it is disposed of through normal waste systems" http://www.greenfuji.com MIT & Polytechnic Institute: "carbon nanotubes on a silicon substrate .. gaps between the tubes with cellulose" http://arstechnica.com/old/content/2007/08/scientists-create-paper-thin-flex... http://web.mit.edu/press/images/researchers/hammond.pdf