This statesman, politican, scholar, inventor, and one of early presidents of USA

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.

View More Related Question

1) Where is the village of Branston, after which the famous pickle is named?

2) What now-ubiquitous device was invented by Zenith engineer Eugene Polley in 1955?

3) Who is often called the 'first African-American' inventor?

4) Ralph Samuelson was only 18 when he invented this sporting item in 1922. What was that?

5) The Manhattan Project was started by President Roosevelt in 1942 to ensure that the U.S. beat the Germans in developing a nuclear bomb. Whom did Roosevelt appoint as scientific head the Manhattan Project?