light leaper accessory, insulating printed circuit board carries a metallic conduction path with six breaks and a binding post at each end, When connected to an operating electrostatic generator, simultaneous sparks occur in each of the breaks as charge flows
Collision In Two Dimensions, Consists Of A Curved Track With A Base At One End. On The Base Is A Support To Hold A Ball At The Proper Height For A Center To Center Collision, Consists Of 25Cm One Piece Track, 3 Balls 12mm Diameter, 2 Steel, 1 Glass And 1 Plumb Bob.
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