How to Make a USB Fan. If things are getting a bit stuffy at your desk, don’t fret. A cool breeze is just a USB slot away. You will need An old computer cooling fan A Phillips-head screwdriver Wire...
Hi! I'm going to show you how to make an electroscope out of various bits and pieces that you can find around the house. This is a glass jar. I have 2 little pieces of aluminum foil that I cut the...