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(BBC-US)   Geologist pounds sand, discovers mechanism underlying erosive shapes of sandstone   (bbc.com ) divider line
    More: Spiffy, gravity, sandstone, erosion, stress and strain, modeling, quoted-printable, Nature Geoscience  
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1247 clicks; posted to Geek » on 22 Jul 2014 at 9:53 AM (1 year ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



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2014-07-22 08:51:14 AM  
Whoa, that's really cool
 
2014-07-22 10:08:37 AM  
Very interesting article.  Couldn't help but draw similarities to humanity's propensity for building arches in a lot of our earliest sacred architecture.
 
2014-07-22 11:49:19 AM  
It seems this geologist never took a basic engineering strength and properties of materials course in college.

Compression (in this case gravity) is were materials like this (i.e. a basic principle of concrete) get their strength.

I can hear Homer yelling D'oh all they way from the Czech Republic!
 
2014-07-22 12:40:49 PM  
Why am I seeing the phrase, "pound sand" all over the place these days? Has it been common for a long time and I've just somehow never been exposed to it?
 
2014-07-22 08:08:00 PM  
It's quite old, like 1950s if not earlier. It means to "walk away" like leave your job. It refers to your feet "pounding" (stepping) on "sand" (the ground).
 
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