WARNING: The Wimshurst can give you a nasty shock - discharge before handling.
Theory: The machine mechanizes the charging by contact process, allowing considerable charge to be built up by spinning the two wheels in opposite directions.
Description: Turning the crank causes the wheels to spin, building up opposite charges on the two balls. Nice bright sparks are easily created with this device.
Setup time: 5 minutes
References: (available in the demo room)