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High-Tech Sleuthing Cracks Mystery of Death Valley's Moving Rocks
Livescience ^ | August 27, 2014 | Becky Oskin

Posted on 08/29/2014 12:16:04 PM PDT by zeugma

The first witnesses to an enduring natural mystery are an engineer, a biologist and a planetary scientist who met thanks to a remote weather station.

Lacking direct evidence, explanations for this geologic puzzle ran the gamut, from Earth's magnetic field to gale-force winds to slippery algae. Now, with video, time-lapse photographs and GPS tracking of Racetrack Playa's moving rocks, the mystery has finally been solved.

(Excerpt) Read more at livescience.com ...


TOPICS: News/Current Events
KEYWORDS: california; deathvalley; mysterysolved; racetrackplaya; rocknroll
Cool Science!

Normally I wouldn't post from a place that requires excerpting, but this is pretty cool.

Apparently, the reason the rocks move is because the 'dry' lakebed sometimes gets an inch or so of rain, then freezes overnight. As the ice melts, if there is wind as well, the pressure from the fracturing ice and wind will push the rocks along. They apparently set up some artificial "rocks" with GPS transmitters in them and set up cameras as well, and were able to actually film them moving.

Cool stuff. One more mystery solved. (for the smaller rocks anyway - they said that during this incident, the larger ones didn't move)

 

1 posted on 08/29/2014 12:16:04 PM PDT by zeugma
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To: zeugma

Let me guess: They’re dancing?


2 posted on 08/29/2014 12:23:40 PM PDT by WayneS (Don't blame me, I voted for Kodos.)
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To: zeugma; All
Ah! The Monolith Monsters
(a good b-grade Movie)
seriesly, a few years ago, there was the theory of
liquid water/soil (Mud) and the wind.

3 posted on 08/29/2014 12:25:17 PM PDT by skinkinthegrass (The end move in politics in always to pick up a weapon...eh? "Bathhouse" 0'Mullah? d8^)
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To: zeugma

http://www.freerepublic.com/focus/f-chat/3198067/posts


4 posted on 08/29/2014 12:28:41 PM PDT by Red Badger (If you compromise with evil, you just get more evil..........................)
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To: zeugma

An engineer, a biologist and a planetary scientist go into a bar. The bartender asks why they are there during that part of the working day. There answer was, we have discovered scientific facts that it can be to wet to plow and to windy to haul rocks!


5 posted on 08/29/2014 12:36:31 PM PDT by OldBullrider (if yur hurt, rub some dirt on it, and get back to work)
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To: WayneS

Nah, they’re rocking out.


6 posted on 08/29/2014 12:37:08 PM PDT by Riley (The Fourth Estate is the Fifth Column.)
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To: zeugma

I for one am glad to have this mystery solved.


7 posted on 08/29/2014 12:38:32 PM PDT by bert ((K.E.; N.P.; GOPc.;+12 ..... Obama is public enemy #1)
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To: zeugma

For those about to rock, we salute you.


8 posted on 08/29/2014 12:43:07 PM PDT by TurboZamboni (Those who make peaceful revolution impossible will make violent revolution inevitable.-JFK)
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To: zeugma

Dry lakes, once rained, are really slick! And fun as hell. One can actually do donuts with vehicles like on lake ice. So it seems correct that surface objects could move around like they do.


9 posted on 08/29/2014 12:48:17 PM PDT by SgtHooper (Anyone who remembers the 60's, wasn't there!)
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To: bert

AT LAST!!!! I can finally get a good nights sleep.


10 posted on 08/29/2014 1:04:17 PM PDT by Ed Condon (subliminal messages here in invisible ink)
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To: TurboZamboni
For those about to rock, we salute you.

                     FIRE!!!

11 posted on 08/29/2014 1:19:41 PM PDT by Rodamala
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To: zeugma

There’s going to be some upset freepers who were convinced it was aliens from space!!!


12 posted on 08/29/2014 1:27:05 PM PDT by ontap
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