stroboscopic light

One complaint described “extremely intense white stroboscopic light” that was “causing distress and nausea.”

The waiver that visitors had to sign before entering the room described the installation as having "intense stroboscopic light in combination with thick artificial fog, resulting in a loss of spatial orientation".

What goes on in the cell while the machine is spinning can be seen by stroboscopic light�extremely rapid, brief flashes from a mercury vapor arc.