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1Q60.85 - Balancing - Spin a Penny

Code Number: 1Q60.85
Demo Title: Balancing - Spin a Penny
Condition: Good
Principle: Dynamic vs. Static Balancing.
Area of Study: Mechanics
Equipment:
Coins
Procedure:
Put the coins edge up on the table and spin them. When they slow down and fall onto the table they should show heads about 80 % of the time.
References:
- Robert Ehrlich, "4.9, Spinning a Penny", Why Toast Lands Jelly-Side Down", p. 72.