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An anonymous reader writes "Astronomer and gamer Scott Manley (more famous for his Kerbal Space program coverage) has created a fantastic video explaining the science behind building guns that could one day be used to launch payloads into space. It's not as easy as simply making a bigger gun, there's a whole host of unorthodox 'gun' designs which work around the limitations of garden variety propellants."
"Kill the Wabbit, Kill the Wabbit, Kill the Wabbit!"
-- Looney Tunes, "What's Opera Doc?" (1957, Chuck Jones)