We use physics and 3D printing techniques to test whether optical illusions and impossible shapes can actually exist as ...

M.C. Escher's artwork is a gateway into a world of depth-defying optical illusions, featuring "impossible objects" that break the laws of physics with convoluted geometries. What you perceive his ...

Meet “impossibagel,” a physically impossible bagel that mathematicians use to resolve intricate geometry problems. But impossibagel—and other “impossible objects” in mathematics—is notoriously ...

Everyone knows that additive manufacturing processes can make intricate, seemingly impossible mathematical shapes. Here is a sample STL file of one of these extraordinary shapes.