Student Favorite - The Wimshurst Machine is an electrostatic generator that produces a much higher current and less voltage.
Two counter rotating disks are barely touched by the brushes connected to the two Leyden Jar capacitors. As the disks rotate a charge is collected by the brushes and stored in the Leyden Jars. Moving the two arms closer together allows the Leyden Jars to discharge creating a large noisy spark. Students love it!