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| Inventions by Thomas Jefferson |
Thomas Jefferson loved to invent gadgets. He helped advance the science of agriculture by inventing a plow that was easier to pull. He also created an updated sundial in the form of a sphere.
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| Biographical facts about Thomas Jefferson |
But his coolest work was to help out American spies during the Revolutionary War. He invented this “wheel cipher,” (see picture) which was an iron pin containing 26 spinning wooden disks that could be used to decipher coded messages. That way, the British couldn't read any messages they managed to intercept.
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| More inventions by Thomas Jefferson |
Among his other inventions were:
- Dumbwaiter for his wine bottles
- The hideaway bed
- The pedometer
- The polygraph (not a lie detector - it was a copying machine)
- A revolving book stand
- The spherical sundial
- An improved swivel chair
- The hideaway bed
- The pedometer
- The polygraph (not a lie detector - it was a copying machine)
- A revolving book stand
- The spherical sundial
- An improved swivel chair
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| Some more inventions by Thomas Jefferson |