Multiple choice general knowledge

What James Watt invented?

  1. Diving bell

  2. Steam boat

  3. Hot air balloon

  4. Rotary steam engine
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

James Watt developed significant improvements to the steam engine, including the separate condenser that greatly increased efficiency, and worked on mechanisms to convert reciprocating motion to rotary motion for industrial applications. The diving bell was invented much earlier, steam boats were developed by Robert Fulton, and hot air balloons by the Montgolfier brothers.

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