Friday, April 11, 2008
The Sword of Gou JianIn 1965, a 2000 year old sword was discovered it a watery tomb, still sharp and uncorroded. Yes, this is real and not a line from a fantasy novel.
Apparently, it has a unique blend of metals and compounds that made it resist even tarnishing after laying in water for 2000 years. The ancient civilizations were more advanced in some ways than many people think. This reminds me of the Greek Parthenon, which had been damaged by many centuries and war, had metal stays in it that resisted corrosion until some British tried to replace them with unprotected iron which ended up rusting. Those were later replaced by Titanium.
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