The statesman, politician, scholar, inventor, and one of early presidents of USA invented the swivel chair, the spherical sundial, the moldboard plow, and the cipher wheel was___________?
Correct answer: C. Thomas Jefferson
- A. George Washington
- B. Alexander Hamilton
- C. Thomas Jefferson
- D. John Adams
Explanation
Thomas Jefferson was both a U.S. president and an inventor who designed or developed devices such as the swivel chair, moldboard plow and cipher wheel. The other listed presidents are not associated with this group of inventions.
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About Inventions and Discoveries
Inventions and Discoveries covers the people, dates, principles and practical uses behind developments such as the wheel, printing press, telephone, electricity, radio, computer, internet, vaccines and space technology. It distinguishes an invention, which creates a device or process, from a discovery, which identifies something already present in nature.
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