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Elementary school kids firing off a trebuchet in a castle siege demonstration for school. Here's some more info about the demo: http://blog.crash (more)

Elementary school kids firing off a trebuchet in a castle siege demonstration for school. Here's some more info about the demo: http://blog.crashspace.org/2011/10/trebuchet-built-by-crashers-and-kids-demonstrates-ancient-science/

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