99 Years Later... We Solved It

Why watch

Physics Girl Dianna Cowern explains the 99-year-old mystery of sailing stones in Death Valley's Racetrack Playa—rocks that mysteriously move across the desert floor leaving tracks. The video reveals how a rare combination of thin ice sheets, sunny conditions, and gentle wind allows these rocks to slide, solving a geological puzzle that baffled scientists for nearly a century. Ideal for curious viewers interested in physics mysteries and natural phenomena.