Multiple choice

Directions: Find out from the following the scientist behind the undergiven invention. Submarine

  1. David Bushnell

  2. Bell Labs

  3. James Watt

  4. William Oughtred
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A Correct answer
Explanation

David Bushnell built the Turtle in 1775, the first military submarine used during the American Revolutionary War. While earlier submersibles existed, Bushnell's Turtle was the first one-person combat submarine with a propeller. Bell Labs is a research institution, James Watt improved the steam engine, and William Oughtred invented the slide rule.

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