Tesla's Valve

Nikola Tesla is a big name in Science & Technology, long before his name became synonymous with electric vehicles.  A legendary engineer, inventor and futurist, Tesla was one of the early pioneers of alternating current and wireless transmission.   Although known more for his work with electricity, Tesla had many clever ideas, including one of the most interesting valve designs you might have seen.  Here's a modern take on visualising how it works using flammable gasess.