The Moving stones of Death Valley

   

    The moving stone's of Death Valley,CA

        Everyone knows that rocks can not move by themselves, yet there is one mystery, that has had scientists puzzled for decades. At Death Valley's national park, there lies a dried lake, also known as the Racetrack Playa. It has been said that many heavy boulders, some weighing up to 300 kg, have been found with long trails behind them, cutting a furrow in the sediment, as if they had moved. No one has actually seen the stones move, yet they have been said to be moving around a lot. 

       Their discovery was first made in the 1940's, and ever since then, many geologists have thought up many theories as to how or why the would have moved. Many of them have been proved wrong, and only recently have they been ably to get an idea of what might be causing this. Scientists believe that ice is the cause to this famous mystery.

    They have been able to gather evidence, using GPS devices and cameras. There is a thin layer of ice in which develops on the dirt, in which causes the rocks to move, yet the process is so slow, it would be hard for the human eye to capture it. This is why it still seems so hard to believe.

  For more information, visit:

http://arstechnica.com/science/2014/09/death-valleys-famous-moving-stones-caught-in-the-act/