Hope Floats in a Concrete Canoe

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Hope Floats in a Concrete Canoe

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Hope Floats in a Concrete Canoe

by Associated Press Videos 1:28 mins

Does concrete float? Teams representing 23 schools were judged on how well they applied their engineering skills to building boats from concrete. The concrete canoes were more than four times heavier than same-size canoes made of wood. (June 24)

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