PhysicsThe “Mountain Or Valley?” IllusionJune 29, 2017 by admin 0 Comments Share on Facebook Share on Twitter Share on Google+ Share on Pinterest Share on LinkedIn Thanks to Skillshare for supporting this video: http://skl.sh/MinutePhysics for 2 free months! This video is about a multistable perceptual illusion, similar to the hollow face illusion,… Share on Facebook Share on Twitter Share on Google+ Share on Pinterest Share on LinkedIn Products You May LikeArticles You May Like The First Known Bird Could Fly, But Super Awkwardly How Formation Flying Works (feat. the Red Arrows!) How Smart Are You? (TEST) “Prove” 3 = 0. Can You Spot The Mistake? What if Quicksilver Ran Past You?