Showing 20 posts tagged sand
From the Ri Channel's View the Tales from the Prep Room series, this is how you make a fluidized bed of sand: Making Sand Swim. Watch how these solids suddenly behave a lot like a fluid as air escapes between the sand particles, causing them to float. It’s definitely one of the more strange and fascinating demonstrations that we’ve seen.
Related watching: ScienceDemo.org, and at RIGB.org, a video list that I put together for The Royal Institution that has our favorite STEM videos for kids… well, at least some of our favorites. There are so many.
Related watching: turn your smartphone into a digital microscope, and then perhaps explore the sand, dirt, leaves, and other microscopic worlds near you.
If you happen to spot a Nine Armed Sea Star under the sand, perhaps it’s kindest to not disturb it. But you know, since this one has already been disturbed, watch how it flips itself over from being on its back… and then proceeds to leave. (Wouldn’t you?)
Made by Cuban-American artist Jorge Rodríguez-Gerada for the Ulster Bank Belfast International Festival in Belfast, Ireland, this is WISH, an 11 acre portrait of a girl. It’s been nicknamed “The Face From Space” by locals.
Using 2,000 tons of topsoil, 2,000 tons of sand, grass, stones, and 30,000 manually placed wooden stakes, the face was originally plotted with state-of-the-art GPS technology, and then took four weeks and a huge team of community volunteers to make. Here’s a time lapse vid of their work.