Thursday, August 28, 2014
Propulsion
As fans of the desert, particularly Death Valley, we had wondered about this.
These stones have trails. You can see it. But they are obviously not moving. And no one has seen them move.
Until, now, by accident, some scientists found the answer to the puzzle in a wild moment of serendipity.
You will have to read the article. Can you guess?
Nature is a mother.
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