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Benjamin Franklin and Bifocals

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Presentation on theme: "Benjamin Franklin and Bifocals"— Presentation transcript:

1 Benjamin Franklin and Bifocals

2 Benjamin Franklin

3 The Inventor: Benjamin Franklin
Born in Boston, Massachusetts on January 17, 1706 Opened his own Printing Office in Philadelphia. Kite experiment Invented bifocals Died in Philadelphia, Pennsylvania

4 Pictures of Bifocals Benjamin Franklin invented bifocals between the years of

5 History and Importance of Bifocals
Benjamin Franklin wore glasses, and after the age of 40 he needed another pair for reading. In order to solve his problem, he split the lenses of each pair of his glasses. He looked through the top half for distances and the bottom half for reading. This was the invention of the bifocal glasses. Franklin’s invention made life easier for people. They would no longer have to constantly change their glasses to see things in the distance and for reading.

6 A Few of Benjamin Franklin’s Other Inventions
Catheter Franklin Stove Glass Armonica Lightning Rod Odometer


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