Aerogel, also know as frozen smoke, is the world’s lowest density solid, clocking in at 96% air. If you hold a small piece in your hand, it’s practically impossible to either see or feel, but if you poke it, it’s like styrofoam. It supports up to 4,000 times its own weight and can withstand a direct blast from two pounds of dynamite. It’s also the best insulator in existence.
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“Eternal glory. That is what awaits the student who wins the Triwizard Tournament.”
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Rubber Duck of the Day: Inadvertently creating perhaps the greatest photo ops ever, Rubber Duck has been traveling the world since 2007 as part of an ongoing art project by Dutch creatorFlorentijn Hofman. “The Rubber Duck knows no frontiers,” he says. “It doesn’t discriminate people and doesn’t have a political connotation.” The artist’s large-scale art installations have graced public spaces spanning the globe since 2003.
André Kuipers, who is currently on a expedition on the International Space Station, shared his incredible photography from space.
(via yerawizardharry)