Workers spent two years pouring concrete for the dam, which would have taken 125 years to cool if Crowe hadn't designed an ingenious web of pipes that pumped cold water throughout.

FORBES: American Pyramids

There simply isn't enough evidence to justify the benefits of swimming in freezing cold water over some laps in a warmer swimming pool.

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If America hadn't gone to war, a man named Birdseye wouldn't have figured out he could preserve food for our troops by flash freezing it in cold water.

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