The wacky, waving inflatable arm man is the universal symbol for car lots and sidewalk sales of all sorts, and he has an origin of which you’re probably not aware. The inflatables debuted at the 1996 ...
You know what those wacky, waving arm-flailing tube men are, right? Or maybe you don't. Or you probably know what they are, you just never knew they had a name. I never knew they had an "official" ...
(via Steve Mould) Hose instability describes the dangerous phenomenon of nozzle whip the fire fighters experience but also sky dancers (Wacky Waving Inflatable Arm Flailing Tube Men).