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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.
When did benjamin franklin invent bifocal glasses?
1784
What are the things Benjamin Franklin invent?
Lightning rod, Franklin stove, and bifocal glasses.
What did Benjamin Franklin invent to improve his eyesight?
He invented bifocal glasses.
What did Benjamin Franklin invent other than a public library?
benjamin franklin invented spectacles,(glasses),and discovered electricity.
What did Benjamin Franklin invent to help people see well?
bifocal glasses
Did Benjamin Franklin create special glasses to read a secret map?
No, he did not invent glasses to see special maps.
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.
What inspired Benjamin Franklin to invent the glasses?
He wanted to see clearly more and farther because his eyes were tired and weak
Did Benjamin Franklin invent electrcity?
No Benjamin Franklin did not invent electricity he just discovered it. there is a big difference in inventing and discovering.No Benjamin Franklin did not invent electricity he just discovered it. there is a big difference in inventing and discovering.
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
