Marcio AleksandraviciusStatic images on a wall that appear animated as the train moves.
jack@marcioaleks That's clever but surely it only works on cameras? with the naked eye (without a shutter) wouldn't you just see a series of blurs?
Hashbangperl@jackeric @marcioaleks works just like the early https://en.m.wikipedia.org/wiki/Zoetrope see the section subway zoetropes for other examples
GezzaSeen similar in tunnels - stroboscope timed to match train speed. Which does work with naked eye.