2057 How To Make The Homemade Battery You May Have Been Waiting For
16:39
1245 How To Make Your Own Super Battery - Copper Oxide Zinc
14:08
These 3 Rocks Can Charge Your Phone!
27:10
021 The Mighty Mite Generator And How To Build It
10:38
Iron and Saltwater Battery How easy is that
15:55
Can an 18th Century Battery Charge Your Phone?
25:41
028 Unlocking Energy From The Sky - The Fractal Capacitor
9:53
1931 A More Powerful And More Efficient Generator And How To Build It
13:47