This is a brilliant short by KQED Public Media, the PBS station in San Francisco. Great macro photography and videography and a fascinating story.
There’s a story in every grain of sand: tales of life and death, fire and water. If you scooped up a handful of sand from every beach, you’d have a history of the world sifting through your fingers. From mountain boulders to the shells of tiny ocean creatures, follow the journey that sand takes through thousands of years across entire continents to wind up stuck between your toes.
[via The Kid Should See This]