Racetrack Playa, Death Valley, California

image: http://www.sunnyskyz.com/uploads/2014/01/p6vb5-death-valley.jpg
natural oddities
Photo: Getty Images



How ordinary stones manage to "sail" over the surface of Racetrack Playa in Death Valley National Park is a mystery people have tried to solve since 1915, when a prospector and his wife noticed tracks that seemed to indicate that the stones had somehow traveled across the dry earth. Short of cosmic intervention, the stones required terrestrial forces to move them.
But what forces? The current prevailing theory about the "sailing stones" of Racetrack Playa, presented by a team of physicists in 2011, involves ice that forms around the stones, causing them to move and to leave a trail in their wake. Many visitors still hope for a more mystical explanation.

The Racetrack Playa, or The Racetrack, is a scenic dry lake feature with "sailing stones" that inscribe linear "racetrack" imprints. It is located above the northwestern side of Death Valley, in Death Valley National Park, Inyo County, California, U.S.
Credited From http://www.sunnyskyz.com and en.wikipedia.org

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