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 with Ri Demo Technician Andy Marmery. Watch how these solids suddenly behave a lot like a fluid as air escapes between the sand particles, causing them to float.
Aided by a troop of floating objects Andy dusts off the fluidised bed, a classic piece of Ri demonstration kit handed down from the 1950s.
It’s definitely one of the more strange and fascinating demonstrations that we’ve seen.
Watch more science, technology, engineering, and math videos, including this related gem: Liquid Sand Hot Tub.
Plus: The Amazing Life of Sand, a Deep Look video.
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