How do steam engines work? | Who invented steam engines?
Sep 23, 2020 · The fire heats up the boiler—the "giant kettle" inside the locomotive. The boiler (2) in a steam locomotive doesn't look much like a kettle you'd use to make a cup of tea, but it works the same way, producing steam under high pressure. The boiler is a big tank of water with dozens of thin metal tubes running through it (for simplicity, we learn More