Combustion Piston Cutaway

This was a modern engineering marvel. We use it in vehicles, and generators and so much of our world were built on this idea. This is a full cutaway of how a piston works. There is a fuel injector (left bright light orange), piston (center green), cam shaft (bottom white), valves (blue and red), and spark plug (center trans orange). What is the most unique about this build is it's all operational. The valves open in intervals as they would in a real engine, the piston moves up and down, and the spark plug will light up to ignite the fuel. One of my best designs and a great way to represent STEM.