Inventions

 


Jefferson's Copying Machine

Dear Mr. Jefferson,

I am studying the Revolutionary War and the time period surrounding that in my 7th grade Social Studies class. I read that you invented a Polygraph machine that copied what you wrote. I was wondering how you came up with that idea and how long it took you to make it from start to finish.

Sincerely,
Michael

Dear Master Michael,

Thank you for your recent letter. I believe that you are
mistaken in your belief that I invented the polygraph, the
finest invention of the modern age. It was invented by Mr.
John Isaac Hawkins of England and was later improved by Mr.
Charles Wilson Peale, the Philadelphia painter.
I am with great esteem, Your most obedt. humble servt,
Th.Jefferson


Jefferson's Inventions

Dear Mr. Jefferson,

I would like to know about at least five of your
inventions. Could you please describe them to me and
explain how they made life esier for you?

Sincerely
Emily

Dear Mistress Emily,

Thank you for your recent letter. Please excuse me for not
responding to it sooner, but I have been away from Monticello
and have only just returned.

I fear that you are mistaken in your assumption that I
am a prolific inventor. In reality I have invented very few
items. I am most proud of my moldboard plow of least resistance.
It has even won an agricultural award in France. It's main
benefit is that it allows for better plowing on hillsides. My
only other true invention is a cypher wheel for coding and
decoding messages. I am sometimes credited with having invented
a spherical sun dial, but I am not certain that I was the
first one to do this.

I am with great esteem, Your most obedt. humble servt,
Th.Jefferson


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