ON 20071217@9:02:20 PM at page: http://www.sxlist.com/techref/other/billofnotrights.htm# James Newton[JMN-EFP-786] edited the page. Difference: http://www.sxlist.com/techref/diff.asp?url=H:\techref\other\billofnotrights.htm&version=4 ON 20071223@2:01:28 PM at page: http://techref.massmind.org/techref/other/robogarden.htm#39439.5843518519 James Newton[JMN-EFP-786] See also: http://www.aerogardendvd.com The "Aero Garden" automates the lighting cycle and reminds the user to add water and nutrients as needed. The roots are held in air at 100% humidity (no dirt). Cost is about $170. ON 20071223@2:07:19 PM at page: http://techref.massmind.org/techref/other/robogarden.htm# James Newton[JMN-EFP-786] edited the page. Difference: http://techref.massmind.org/techref/diff.asp?url=H:\techref\other\robogarden.htm&version=1 ON 20071223@2:08:03 PM at page: http://techref.massmind.org/techref/other/robogarden.htm# James Newton[JMN-EFP-786] edited the page. Difference: http://techref.massmind.org/techref/diff.asp?url=H:\techref\other\robogarden.htm&version=2 ON 20071224@6:09:29 PM at page: http://techref.massmind.org/techref/other/bikecars.htm#39440.7565856481 James Newton[JMN-EFP-786] Says For about $800 and a couple weekends of labor, one could build a 4 wheel bicycle "car" with an electric drive, batteries and a solar panel. Two "beach cruiser" bikes are about $100 each at target. $150 for the "granny cycle" frame kit to bolt them together, about $200 for electric motors, switches and wiring. Batteries will cost between $50 and $200 depending on quality and quantity. And Harbor Freight has a complete solar panel and charger kit for $150. A "car" like that will get you to and from the store once or twice a week assuming the store is just a couple miles away at absolutely no operating cost. Now the interesting bit: Unless that completely removes any need you have for a car, it isn't worth doing. Run the figures yourself. How many trips to that same store in your gasoline powered car does $800 buy? If you still have to own a car, it is more frugal, and therefore more sustainable, to just drive the car to the store... Or pedal that $100 bike yourself, if possible. ON 20071230@10:09:58 PM at page: http://techref.massmind.org/techref/other/solar.htm#39446.923587963 James Newton[JMN-EFP-786] See also: http://www.motherearthnews.com/Alternative-Energy/1976-05-01/The-Hot-Line-Solar-Collector.aspx Hot air collector compensates for suns elevation through out the year.