Question

This statesman, politican, scholar, inventor, and one of early presidents of USA invented the swivel chair, the spherical sundial, the moldboard plow, and the cipher wheel.

a.

George Washington

b.

Alexander Hamilton

c.

John Adams

d.

Thomas Jefferson

Posted under Inventions General Knowledge

Answer: (d).Thomas Jefferson

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Q. This statesman, politican, scholar, inventor, and one of early presidents of USA invented the swivel chair, the spherical sundial, the moldboard plow, and the cipher wheel.
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