What James Watt invented?

Umair Latif
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  • A. Diving bell
  • B. Steamboat
  • C. Hot air balloon
  • D. Rotary steam engine

Correct Answer: D. Rotary steam engine

James Watt was a Scottish inventor, mechanical engineer, and chemist who improved on Thomas Newcomen’s 1712 Newcomen steam engine with his Watt steam engine in 1776. James Watt was urged by Boulton to invent some form of a rotary motion for his steam engines. The idea was to replace the reciprocating action of the original.

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