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- James Nasmyth (1808–1890) - Inventor of the steam hammer and other important machine tools
- Thomas Newcomen (1664–1729) - Inventor of the first practical steam engine for pumping water
- James Henry Northrop (1856–1940) - Invented shuttle-charging mechanism which led to the fully automatic Northrup Power Loom
- Bill Nye - educational science television
Read more about this topic: List Of Mechanical Engineers