Scientists Use GPS To Solve The Mystery of Death Valley's 'Rolling Stones'
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izzy10can약 11년Lol cool I guess
bibliophile약 11년Wow!
leap45약 11년Suprising
leap413약 11년How can this be happening without me knowing!
leap43le약 11년this is insanely cool
leap411약 11년Wow!
leap48약 11년This video gives us information on the freezing of water into ice, and how the ice breaks up to push the rocks around the valley in a zig-zag pattern even though the rocks are not getting moved that fast.
leap48약 11년OF COURSE ROCKS CAN ROLL!
leap42md약 11년really cool
leap412as약 11년REALLY!!
leap414약 11년The video is cool because it shows this in action