Got a screw loose?
Don't worry. We all do. This handy tutorial will keep any screw secured to any screwdriver.
This method of magnetization uses a copper wire and a car battery. This is much more effective than simply rubbing a screwdriver with a magnet. It also holds the magnetic charge for a longer time.
Careful. Car batteries are pretty fierce. Fool around with the arc, and you might find yourself grounding the 12 volts of electric current. And there is a risk of frying your battery cells if you go too far.
Photo by Flickr user, Mostafakawtharani.
