19分
The Devil’s Kettle Science Solved It
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- 科学
In northern Minnesota, a waterfall splits in two. One half tumbles over the edge and continues down the river, the other half drops into a huge hole in the rock and disappears.
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In northern Minnesota, a waterfall splits in two. One half tumbles over the edge and continues down the river, the other half drops into a huge hole in the rock and disappears.
Hosted on Acast. See acast.com/privacy for more information.
19分