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originally posted by: UDrinktheKoolAid
How do you raise enormous mable stones that today our heaviest machines cant even raise? We are just recreating things they already had.
originally posted by: Monger
a reply to: np6888
They dated calcium deposits from seepage in the cave that grew over the paintings. It's a pretty conclusive method, given that it's hard, even with a spray can, to paint under a 40,000 year old calcium deposit.