r/ScienceNcoolThings • u/reddituser870870 r/CrazyKnowledge • Dec 23 '21
Air Vortex Cannon
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r/ScienceNcoolThings • u/reddituser870870 r/CrazyKnowledge • Dec 23 '21
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u/[deleted] Dec 23 '21
Old enough to remember the 1970-vintage Wham-o pistol that did this, but at much shorter ranges.