Multiple choice general knowledge science & technology

What James Watt invented?

  1. Diving bell

  2. Steam boat

  3. Hot air balloon

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

James Watt made crucial improvements to the steam engine in the late 18th century, including the separate condenser that greatly increased efficiency. While Thomas Newcomen invented the earlier atmospheric engine, Watt's innovations made steam power practical for industrial use. The other options are incorrect - diving bells date to antiquity, steam boats were developed by others like Fulton, and hot air balloons by the Montgolfier brothers.

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