Hand Generator Set (NBO) 24 x Playground Balls

24 x Playground Balls

design to be clearly visible

Optic Orange

Features 25 numbered circles (1–25) for counting and target games

Hand Generator Set (NBO) 24 x Playground BallsInvolve students in investigations by using their own energy to generate d. c. electricity. If the handle is turned slowly, a bulb for example, will light dimly; if turned faster, the bulbs become brighter. A high quality motor unit driven from the hand crank via 2 stage step up gearing. Capable of generating approximately 6V d. c., with the polarity determined by the direction in which the handle is turned. Supplied with 1m of detachable twin lead