Spool Racer
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Storing energy is how a home-made spool racer works. But can Phil build one out of a giant cable spool!? Plus: a run of giant dominoes, a maxed out craft stick chain reaction, mouse-traps and ping pong balls.
Storing energy is how a home-made spool racer works. But can Phil build one out of a giant cable spool!? Plus: a run of giant dominoes, a maxed out craft stick chain reaction, mouse-traps and ping pong balls.