Klein Bottle, the shape-shifting container that defies all logic and makes mathematicians scratch their heads in confusion. It's a bottle, but it's also a surface, with no inside or outside. Basically, it's the equivalent of a magician's magic box, but with math equations instead of rabbits 😅. . Source : SacredSpirit123 (reddit) | THE GRAPHER

Klein Bottle: 3D representation of a four dimensional mathematical object with one side, no edges, and zero volume. Kind of like a Möbius strip with no edges.* Math meets glass art with this fun “lamp shaped” version! *only achievable in 4D space ➡️ Follow the link in my profile for info on where to get your own zero volume bottle and other amazing items featured here on @physicsfun #math #kleinbottle #mobius #mobiusstrip #mathtoy #physicstoy #blownglass #glass #art #glassart #physics #science