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Science World

How to build a better mousetrap - this was a machine built in the shape of a cat.
There was a hot air balloon demonstration. As the air inside of the balloon heated up, the balloon began to rise. As the air cooled back off, the balloon slowly sank back down.
Suze and Sheryl try to solve logic puzzles. You know the kind: remove this ring when it seems impossible. Sheryl lost patience while Suze managed to solve her puzzle.
Sheryl controls the movement of the pneumatic door closers that were used for feet and legs in a mechanical bicylist (not shown) while Suze watches the bicyclist go around the suspended track.

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