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This video includes interviews with Exploratorium Executive Director Dr. Dennis Bartels and Exploratorium Chairman of the Board George Cogan about Piers 15 and 17, as well as a fly-through animation of the future home of the Exploratorium. This After Dark event presented a collection of objects, organizations, and activities use various alternative energy sources, and also looked at sustainably raised food. Senior Exploratorium scientist, Paul Doherty, unlocks the mystery behind the corrosive dust that coats the Black Rock Desert. Exploratorium Senior Scientist Paul Doherty discusses the science of dust devils and describes how vortices are created in the Black Rock Desert. The Exploratorium crew got the opportunity to enjoy a bird's eye view of the Black Rock desert. Join us as we investigate the challenges of navigating density altitude in this extreme climate. Burning Man is a literal hotbed of explosions and fire. Join Exploratorium Senior Scientist Paul Doherty as he looks at the properties that make up fire through the lens of the Burning Man event. We went and talked with the folks who ran the Microzoo camp at Burning Man 2010, and learned about critters in extreme environments. Exploratorium Senior Scientist Paul Doherty explains a double rainbow sighting at Burning Man 2010! For John Edmark, geometry is a foundation for creating beauty. Here he explains his interest in unexpected natural phenemona, and how visitors to his kaleidoscopic piece, The Geometron, can turn simple shapes into surprisingly intricate patterns of reflection. Master weaver Stacy Speyer explains how her relationship to math morphed from casual curiosity into an intensive study of the multifaceted shapes known as polyhedra. After re-creating these fundamental geometric forms in different materials, she developed her own variations and juxtapositions.