Skyrmir
Aquarium Advice FINatic
Just ran across an article that reminded me just how little power it takes to run an LED.
http://superpositioned.com/articles/2006/02/07/powering-leds-costs-mere-pennies
He literaly uses pennies (and dimes and salt water) to light up and led. While it's not really much more than a nifty home experiment for the kids, it does get me thinking there might be a practical use.
http://superpositioned.com/articles/2006/02/07/powering-leds-costs-mere-pennies
He literaly uses pennies (and dimes and salt water) to light up and led. While it's not really much more than a nifty home experiment for the kids, it does get me thinking there might be a practical use.