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What did Benjamin Franklin invent to improve his eyesight?
He invented bifocal glasses.
What are the things Benjamin Franklin invent?
Lightning rod, Franklin stove, and bifocal glasses.
What did Benjamin Franklin invent to help people see well?
bifocal glasses
When did Benjamin Franklin invent electricity.and the stove that saved fuelor bifocal glasses and when did he die and were was he buried and what was his impotabs in the revolutinary war?
what year did Benjamine invent electricity 1706
Did Benjamin Franklin invent glasses?
YES
Did Benjamin Franklin invent the ocular device?
No, but he is credited with inventing the first pair of bifocals - prior to that, people needed two sets of spectacles, one for distance, one for reading. Franklin combined them into one.
When did Benjamin Franklin invent the armonica?
Benjamin Franklin invented the arrangement of the glasses in 1761.
Did the incas invent glasses?
no way. Benjamin Franklin did.
Who invent the bifocal lens?
Benjamin Franklin is credited with inventing the bifocal lens in the 1780s. He designed the lens to help address his presbyopia, a condition that makes it difficult to focus on close objects as people age.
What did Benjamin Franklin invent other than a public library?
benjamin franklin invented spectacles,(glasses),and discovered electricity.
Did thomas Jefferson invent the bifocal glasses?
no
How did Benjamin Franklin invent glasses?
It's not easy to tell you when Franklin invented glasses, because they were well documented in Europe prior to 1300, i.e. 500 years before Franklin was born. Ben Franklin did invent a number of other things, including bi-focals.
