Re:Uncontrollability of a bricycle (2014) [video]
by B1FF_PSUVM on Wednesday April 18, 2018 @03:39PM
(#16870375)
https://en.wikipedia.org/wiki/George_M._Stratton
Interesting dude. Experiments seem to have been about a century ago.
(I thought I'd read that this had been done earlier, but Stratton comes up when looking for "glasses that turned everything upside down" as mentioned)
But taking the headset off, now everything was upside down.