Rapid drop, then rise, in Tahoe lake level + wave action, has generated barrier dunes on beaches. Checked wiki: no one knows how this works.
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Replying to @Meaningness
It’s amazing what we *don’t* know. Such a basic physics question, and it’s still available for you to solve it!
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Replying to @Meaningness
one of my favorite stories like that is how they figured out why the rocks in the dry lakebed move around
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Replying to @cwage
I remember reading the story, but not what the upshot was?
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Replying to @Meaningness
coincidentally nature is trying to erase my favorite barrier https://en.wikipedia.org/wiki/Cape_San_Blas …
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Replying to @cwage
Not a place I know! I love Sanibel, another barrier dune island a bit to the south. Visited Appalachicola as a kid; don’t remember it
9:49 PM - 27 Jul 2016
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