We just learned about the Hydraulic Brake.
Another part of a machine is a Pulse Coder.
We learned before about a rotary encoder, a type of map that a spinning machine can use to tell how far it spins left or right.
A pulse coder is a type of encoder that can also tell a spinning machine how fast it is spinning.
(from: wikipedia - rotary encoder)
Kid Facts - Blast from the past: Falcon Heavy
