High Speed Video of Flipping Cats | Smarter Every Day 58 (Cute Cat vs Physics) - YouTube:
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Thursday, September 06, 2012
You Built What?!: A Fire-Breathing, Jet-Powered Dragon | Popular Science
You Built What?!: A Fire-Breathing, Jet-Powered Dragon | Popular Science: "Richard Hamel was watching the 2010 animated film How to Train Your Dragon with his grandchildren when he noticed something odd about the tails of the flying beasts. Hamel, a longtime radio-control plane builder, realized that those appendages resembled an unconventional aircraft design feature known as an inverted V-tail. In lieu of a vertical stabilizer and horizontal rudder, some aircraft rely on two fins arranged in a V shape. “I thought, ‘That would actually work,’” he recalls, "and I started wondering if I could make a dragon fly.”"
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