The Sun travels across the sky in a fairly orderly way. People with solar panels and solar cookers take either a high tech approach to solar tracking (light detecting electronics, etc or they manually adjust the cooker or panel.
Via Instructables | Posted on 2008.06.02 at 13:49
(''Hooray! It's finally done. It's a bit late into the contest but we hope it is good!'') This project is what we're entering for the Go Green contest.
Via Instructables | Posted on 2008.05.24 at 10:43
Have you ever wanted a portable food warmer but didn't want to spend big bucks? This lunch box using the concept of the green house effect. It can warm most food up in less than an hour and it costs less than $10.
Via Instructables | Posted on 2008.05.23 at 23:01
A rc car with two solar panels strapped up top for charging power. (Sorry no images) video coming soon. This is my first Instructable so be as honest as you can be
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Via Instructables | Posted on 2008.05.19 at 16:28
Have you ever wanted a portable food warmer but didn't want to spend big bucks? This lunch box using the concept of the green house effect. It can warm most food up in less than an hour and it costs less than $10.
Via Instructables | Posted on 2008.05.18 at 22:31
This is a quick and easy way to make a battery pack that will allow you to use a Ryobi 18V tool for four times as long as with one battery. Sometimes a tool will die in the middle of an operation, this can mess up what you're trying to do and is dangerous in some cases.
Via Instructables | Posted on 2008.05.04 at 16:28
This instructable will show you how to make a simple discharger for your NiCad or NiMH battery packs for Airsoft AEG's or RC cars, boats planes, whatever.
Via Instructables | Posted on 2008.04.24 at 20:27
So you don't have enough batteries to power that Mighty Bright of yours? Well heres a thirty second hack to only use however many batteries you need.
Via Instructables | Posted on 2008.04.21 at 12:53
This is a tutorial showing how to build a simple circuit that will allow you to run a Dell Axim x50v series device (or anything else that uses 5 volts DC at up to 1 amp, such as an iPod) on AA or 9v batteries (or any other 8 to 15 or so volt source).
Via Instructables | Posted on 2008.04.17 at 21:58
You can construct a solar powered boombox for as little as $75 Combine a small, energy efficient digital amplifier, cheap bookshelf speakers, batteries, a small solar panel, and your MP3 player as a source.
Via Instructables | Posted on 2008.04.15 at 16:26