steam-engine

1 free lesson tagged steam-engine across History. Each one is a short sequence of focused steps with narration and a five-question quiz at the end — take them in any order, no signup required.

History

intermediate

Steam: From a Mine Pump to a General Prime Mover

The steam engine began as a fix for one problem, flooded coal mines, and was so inefficient that it made sense only where fuel was nearly free. This lesson traces how a device that wasted 99.5 percent of its fuel became the first source of power that could be put anywhere, and why each improvement targeted the constraint that limited the last one.

10 steps·~15 min

Steam: From a Mine Pump to a General Prime Mover

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