An American construction worker builds a replica of Stonehenge by himself, in his back yard, using only the principles of leverage. He explains, very convincingly, that the ancients could have done exactly the same thing, or something very similar.
An American construction worker builds a replica of Stonehenge by himself, in his back yard, using only the principles of leverage. He explains, very convincingly, that the ancients could have done exactly the same thing, or something very similar.
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