Have you ever wondered how a fire sprinkler works? Until today, I hadn’t. Turns out, it’s not some fancy, digital sensor. Instead, it’s actually quite simple and brilliant.
There’s actually some glass-encased fluid in those metal nubs. It’s amazing how they let the water in.
This YouTube user breaks it down for us in super-slow motion. (Note: there is a little bit of NSFW language at the beginning.)