How fast moving water “defies” gravity

From a channel Lumen includes in full: Steve Mould builds physical experiments and demonstrations to explain mechanisms in physics and engineering (chain fountains, siphons, optics, oscillators); one of his investigations led to a peer-reviewed paper.

A 10-minute video from Steve Mould's catalogue; the title names its topic.

Video by Steve Mould, played through YouTube's embedded player.