Water-cooled stirling engine

Turn on subtitles for more information. So... this is a water-cooled external combustion engine made with spray paint cans, steel and aluminum wires, copper tubes, high-temperature silicone sealing, screws, etc. It’s an evolution of my last engine, but it’s not perfect. There are things to improve in the next project: - the power piston is still made of rubber, which sucks; - the displacer piston is too small and heavy; - the copper curve (cylinder) is in an inconvenient place; - cooling is insufficient, so I can’t heat with lamps, only with candles.