The Inventions and Scientific Achievements of Benjamin Franklin

By Mary Bellis, About.com Guide

While serving as Postmaster General in 1775, Franklin decided to analyze the best routes for delivering the mail. He invented a simple odometer to help measure the mileage of the routes that he attached to his carriage.

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• Benjamin Franklin - Armonica
• Benjamin Franklin - Franklin Stove
• Benjamin Franklin - Lightening Rod
• Benjamin Franklin - Bifocals
• Benjamin Franklin - Map of Gulf Stream
• Benjamin Franklin - Daylight Savings Time
• Benjamin Franklin - Odometer

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