I made one of these in high school out of some black paint, sand, cardboard and some tinfoil. The water in the can reached almost 180 degrees Fahrenheit in just a few minutes. Pretty cool, and easy too.
DIY: Make a Solar Water Heater for Less Than $5 - [Gizmodo]
Digg It | Hugg It |
| Report this post
Possibly Related Posts:
Ethanol uses a lot of water
A proposed ethanol plant in Illinois will require 200 million gallons of water per day to generate the 100 million gallon per year capacity. So....
DIY: Build your own fuel cell
It really won't do much, but hey, it's not everyday you can build something as cool as this and learn something about this nifty technology.....
More Efficient & Less Expensive Solar Panels
"The basic technology has been around for decades, but it has proven difficult to produce it reliably and cheaply. Nanosolar has developed a way to....
Solar Power Much Cheaper Than Oil
Not the traditional solar panel technology, but a thermal solar concentration facility. Using mirrors to concentrate solar energy on a single point to generate steam....
Solar Cell Breaks World Record For Efficiency
A new solar cell technology which was funded by the Department of Energy, has become the World's most efficient solar cell. It converts sunlight to....
This entry was posted
on Thursday, August 16th, 2007 at 5:28 am and is filed under Activism, Conservation, Economics, Energy, How-Tos, Renewable Energy, Science.
You can follow any responses to this entry through the RSS 2.0 feed.
You can leave a response, or trackback from your own site.
