A Van de Graaff generator is an electrostatic machine which uses a moving belt to accumulate very high voltages on a hollow metal dome. The American physicist Robert Jemison Van de Graaff invented the Van de Graaff generator in 1929. Modern day applications for these high voltage generators include accelerating electrons to sterilize food & process materials, accelerating protons for nuclear physics experiments and driving X-ray tubes. This miniature version is designed for having fun, but can also be used to perform electrostatic experiments. Under optimal conditions, it can produce over 25,000 volts and sparks as long as ¾ of an inch. Though startling, discharges from the Van de Graaff generator do not represent a serious shock hazard since the currents attainable are so small. What can you do with this amazing device? You can make paper streamers float up and stand on end as the like charges repel each other. Or you can watch a spinner whirl around in circles from just the force of an "ion wind". You can impress both family & friends by making a fluorescent lamp glow by simply holding it your hand! It makes a great science project and will provide hours of fascinating demonstrations that teach electrostatic concepts.