Here’s a really cool flashlight that uses 2 capacitors to power the whole thing. Best of all, the capacitors only need to be charged 3 minutes to last more than 24 hours.
For dummies
Capacitors are a great way to store electricity, and of course even better when you can ...
Here’s a good idea and DIY on how to make an HID flashlight. It shouldn’t be too hard as all cars use 12V DC power so you just need to find a 12V battery for whatever car part you want to use.
Once or twice a year, my family and I go camping with some friends. Usua ...
You’ve seen those new type of flashlights that will re-charge simply by “wacking” it. Now, here’s a company that will take that concept further so you can re-charge your batteries simply through motion.
If you take a bus or simply walk a lot on your way ...