We just learned about the Blastpipe.
Another part of a steam locomotive is the Leaf Spring.
When a train bounces up and down when it hits a bumpy part of a track, these leaf springs help make it less bouncy.
Just like the shocks in a car that help the car not bounce around so much, these springs make a smoother train ride.
Leaf springs are made up of a bunch of flat metal pieces with different lengths all stacked on top of each other, bent in a shape so that when the train hits a bump it will use the bent shape to help smooth out the bump.
The spring will flatten out to help absorb the bump, and then after the bump it will go back to its bent shape.
(from: wikipedia - leaf spring)
Kid Facts - Blast from the past: Valve Stem
