1K20.70 Falling Keys Capstan

1K20.70 Falling Keys Capstan

Hang a set of keys or a ring from a string draped over a pencil and when the string is released, the keys don’t hit the floor.

A piece of string an arm's length long connects a tiny brass ring with a much heavier and larger-diameter chromed ring. The chromed ring is slung over a pencil such that the rim of the ring is less than an inch from the edge of the pencil. A tall man holds the pencil at arm's length, holding the small brass ring close to his chest and keeping the string taunt.

 

Show full size demo with people:

https://www.youtube.com/watch?v=5ZnKIPfIhAQ

Location: B2-3