notes:i do not own photography's only video,read full description.
What to do & see
Stare at the center of the rotating spiral for about 20 seconds, then look elsewhere. You will notice that whatever you look at now appears swirling. Don't worry, it won't stick ;-), this sensation will go away after a few seconds.
You can start/stop and adjust the speeds of the 3 parts of the spiral with the controls at top right.
Gazing at the spiral for a longer time will increase the duration of the aftereffect, leveling out at ≈ 30 s. Holding the gaze steady at the center (don't over-concentrate, let it hang) also increases the effect.
What did u do to my iPad u whore...^-^
LPtrackstarr 4 months ago
fantasmantron
rinkavideos64 1 year ago
omg my desk! :D
ligonis5320 2 years ago