Schlieren Optics,Education,,Demonstration of an optical technique that allows us to see small changes in the index of refraction in air. A point source of light is reflected from a concave mirror and focused onto the edge of a razor blade, which is mounted in front of the camera. Light refracted
Schiphol Airport Clock,Film & Animation,Clock,Art,Amsterdam,Maarten Baas,Schiphol,Airport,Artist,Time as art. Art in time. By Dutch artist Maarten Baas (http://maartenbaas.com/real-time/schiphol-clock/)
Тем не менее это шедевры механики