Make up names, Aimée. It’s fun, and you can demonstrate your knowledge to friends.
“Wait… that’s a reciprocating water pump? They had those back in ancient Greece?”
“It used to be an Archimedes screw, but the Brit astronomers changed it in 1847. You need to keep up with the astronomy periodicals. See that really bright star there? That’s the head on the upper shaft. Really, once you see it you can’t UNsee it.”