Trippy Video Produces Hallucinogenic Effects
In 2012, ScienceForum created a trippy video of optical illusions designed to produce natural hallucinogenic effects after viewing. I can attest that watching the video does, in fact, trigger temporary dizzying effects (they seem to go away in about five minutes). Be sure to view it in HD and in fullscreen to start the wild optical ride.
via Memolition
Thanks Beth Klem!