MATERIALS NEEDED: long-necked bottle large coin deep bowl warm water STEPS TO FOLLOW: Stand the bottle in the bowl. Wet the rim of the bottle and cover the opening completely with the coin. Hold the bottle steady while pouring warm water into the bowl.

Click for QT movie. (339K) Click for OT movie. (64K) Observe. (The coin will "jump".)

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Last modified: Tue Mar 24 18:00:10 PST 1998

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