Tag archive for subcritical

Ridding metal of salt

Museums throughout the world groan beneath the weight of iron artifacts recovered from the sea.

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learning from the Hunley

From the crucible of desperation, the South forged an improbable secret weapon: a hand-cranked attack boat. The H.L. Hunley was designed to do what no vessel in the world had ever done: sink a warship from beneath the waves.

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