A thousand words

Have you ever stared in awe at a steam locomotive, wondering how it works?

For the umpteenth time, I relived this experience at a museum last weekend. Specifically, I wondered how the intricate mechanism around the engine’s wheels and their elegant swinging motion were driven by pressurized steam.

Discover & share this Steam GIF with everyone you know. GIPHY is how you  search, share, discover, and create GIFs. | Steam, Steam engine model,  Mechanical design
Source

This gif I found with a simple Google search answered the question more convincingly than anything else I have come across in 33 years, a degree in mechanical engineering notwithstanding. I only wish for every middle-school science teacher to have his students see this.

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