August 9, 2018 01:00 pm PDT
Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/r6aoR7D_k6E/watch-this-build-and-test-of-a.html
Watch this build and test of a high velocity vortex cannon
A low velocity vortex cannon isn't too hard to make, but a vortex cannon that's this high velocity takes a lot of trial and error. (more…)
Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/r6aoR7D_k6E/watch-this-build-and-test-of-a.html
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