Optical diffraction patterns and almost-holograms made with a MOPA laser engraving machine ~tech Video 22:17 8 votes
Meeting client requirements of a 200-year design life for the Kruunuvuori Bridge in Finland demanded ingenuity in structural engineering and material choices ~engineering Link 13 votes
I tried to make something in America (The Smarter Scrubber experiment) ~engineering Video 48:53 50 votes