Is anyone working on harvesting the energy of lightning? [more inside]
posted on Jun 24, 2008 - 13 answers

Chemistryfilter: I'm looking for a solution (colliod? emulsion? gel? resin?) of a few inexpensive and non-dangerous ingredients whose composition can be adjusted to create a melting point near to room temperature (and moderate pressures). [more inside]
posted on Nov 6, 2007 - 21 answers

Since December 2006, my electricity bill has shown at least a 1,000 KWH increase over the same period a year ago. We haven't purchased any new appliances, or done anything appreciably different. This month, we didn't use our air conditioning/heating unit at all, and our bill still came in 25% higher (500 KWH) than a year ago. We're at a loss. What could be the reason? We ordered a Kill-a-watt, but till it arrives, we are trying to figure it out. Any thoughts? [more inside]
posted on May 9, 2007 - 34 answers

Help me save the world! How can I automatically power off all my computer peripherals when I power off my computer? [more inside]
posted on Aug 11, 2005 - 6 answers