| Here's an interesting physics experiment!Stack up some coins on a table, then put your finger on another coin. Now push your coin towards the stack and let go of it so that it slides and hits the stack. |  |
| If you slide your coin into the stack with enough force, it will knock the bottom coin out without knocking over the rest of the stack! |  |
Sunday, December 12, 2010
Knock Out a Coin
Knock Out a Coin
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