Concrete canoe
A concrete canoe is a canoe made of concrete, typically created for an engineering competition. In spirit, the event is similar to that of a cardboard boat race—make the seemingly unfloatable float.
A concrete canoe is a canoe made of concrete, typically created for an engineering competition. In spirit, the event is similar to that of a cardboard boat race—make the seemingly unfloatable float.
A concrete canoe is a canoe made of concrete, typically created for an engineering competition. In spirit, the event is similar to that of a cardboard boat race—make the seemingly unfloatable float.
Source: Wikipedia "Concrete canoe" · CC BY-SA 4.0
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