This is not a task you'd want to tackle by hand.
Metal chain-making requires intense heat and intense pressure. There is a reason those chains are so hard to break. This machine heats and bends red-hot rods of metal, smoothy linking each piece to the previous one. As the metal loops cool they fade from glowing crimson to glistening silver, clustering into a pile beneath the machine.
Now you need never again look at the chain lock on a door and wonder, "How was that made?"
Every day we track down a Video Wonder: an audiovisual offering that delights, inspires, and entertains. Have you encountered a video we should feature? Email ella@atlasobscura.com.