Hit the beach anywhere in Japan, and you are likely to see endless piles of tetrapods -- enormous four-legged concrete structures intended to prevent coastal erosion. By some estimates, more than 50% of Japan's 35,000-kilometer (22,000-mi) coastline has been altered with tetrapods and other forms of concrete.
Future archaeologists might wonder if these structures hint at the existence of a prior technological civilization or if they're merely the result of fortuitous natural forces.
"Slow march of the overweight triffids?"
ReplyDelete"Future archaeologists might wonder if these structures hint at the existence of a prior technological civilization or if they're merely the result of fortuitous natural forces."
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I have seen these structures on shorelines in Scandinavia. I was told they were anti-tank structures (ie, to stop the enemy from rolling a tank onto land from a boat at the beach). Are you sure these are not left over from WWII?
ReplyDeleteLillylyle, they're not. At keast as far as Japan is concerned. I was stationed there with the Marine Corp about 15 years ago, and they are used mostly to help with beach erosion.
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