Veritasium on MSNOpinion
This sounds impossible… but can you float in concrete?
Most people assume concrete automatically means sinking. But floating has less to do with weight and more to do with density.
When McCormick junior Vivian Reilly attended McCormick’s organization fair her freshman year, one booth caught her eye: Concrete Canoe. “I saw this tank of water with floating cylinders of concrete, ...
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