video://www.youtube.com/watch?v=tvSsCuuEM2g video://www.youtube.com/watch?v=U2NmIVSX9OM Check out the cool Van de Graaff electrostatic Generators! Here’s an excerpt from Wikipedia: Van de Graaff generator is an electrostatic machine which uses a moving belt to accumulate very high voltages on a hollow metal globe. The potential differences achieved in modern Van de Graaff generators can reach 5 megavolts. Applications for these high voltage generators include driving X-ray tubes, accelerating electrons to sterilize food and process materials, and accelerating protons for nuclear physics experiments. The Van de Graaff generator can be thought of as a constant-current source connected in parallel with a capacitor and a very large electrical resistance. via