The origin of the long flat footprints in the rocks of LunyuThere are similar footprints in Baalbek, Japan. Officials believe that these are the traces of a pickaxe. But we understand that a hand tool will not leave a long smooth trace in the hard stone.
Similar traces are found in the extraction of bricks cut from soft rock. Let us remember the well-known story about the Pudost stone. The stone, which was easy to saw and process. In the air it gained strength and hardened.
Maybe there really were soft stones?
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