Is it a horseshoe crab? A hovercraft?
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Welcome to Racetrack Playa in Death Valley, California. For today's fascinating factiod, I bring you the mystery of rocks in motion. No one is quite sure how these rocks move around, but it is certain that no human intervention is involved. I love the strange and erratic trails
left behind in the cracked clay.
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Scientists have been studying these moving rocks for years and postulate the force behind the locomotion is wind. During brief periods of rain, the surrounding mountains flood this uber-flat playa, and the clay particles turn into a slick surface for the rocks to skate across. Clay particles are flat in nature, similar to the shape of a lentil. When the particles are stacked atop eachother, these particles create a perfect condition for the rocks to be pushed along by stormy downdrafts. Notice that there are no human footprints here.
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To learn more about these rocks, go to the geology.com website. If the wind can move these rocks, imagine the potential energy that could be produced to serve our planet.