[FRIAM] Ok STEM folks, explain?

[Carl Tollander]

Sorry try this....
https://m.facebook.com/story.php?story_fbid=10156937272769369&id=645414368


On Wed, Jul 25, 2018, 00:17 Carl Tollander <carl at plektyx.com> wrote:

> https://www.facebook.com/100000731093992/posts/1994344690599881/
>
> This is local in Santa Fe (Arroyo Chamiso bike trail I think near Chavez
> center).  Non-flash-flood sandy base is normally flat, about 2 pct grade
> maybe 4-5 feet below trail.  What is the frequency and how does this
> occur?  Why is this happening next to the path and not out in the middle of
> the arroyo?
>
> Solitons?  Skipping stones?  What?
>
> We live here; we should know this stuff.
>
>
>
>
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