Retro science fact
A two million ton aircraft carrier -- made of ice and concrete. Proposed by kooks? No. Supported by Winston Churchill. (Hat tip: Al Fin)
Pykrete was made famous by wealthy industrialist and financier, Geoffrey Pike, Sir Winston Churchill was one of the earliest promoters of using Pykrete for building large ships in WWII. The hull for a giant Pykrete aircraft carrier would have been 40 feet thick or more, and almost impossible to penetrate with the torpedoes of the day....
What we are talking about, is a custom-built, reinforced iceberg, of incredible strength and toughness. In a polar environment, the structure should last almost indefinitely, with minimal loss to melting and sublimation. In a temperate environment, a large Pykrete structure could last for decades or more, with minimal shading, insulation, and interior refrigeration.
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