Try this amazing magnetic phone trick. Michael Faraday discovered that by rubbing a battery in a parallel direction along a non-conductive surface, you can produce a magnetic field. Use this to turn your phone into a temporary magnet.
Try this amazing magnetic phone trick. Michael Faraday discovered that by rubbing a battery in a parallel direction along a non-conductive surface, you can produce a magnetic field. Use this to turn your phone into a temporary magnet.
