GK
INVENTIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What Benjamin Franklin invented?
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Bifocal spectacles
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Radio
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Barometer
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Hygrometer
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Explanation:
Detailed explanation-1: -Abstract. Benjamin Franklin, who died 200 years ago, is generally credited with the invention of bifocals. However, serious historians have from time to time produced evidence to suggest that others may have preceded him in the invention.
Detailed explanation-2: -Early American statesman, author and inventor Benjamin Franklin is credited with creating the first bifocal eyeglass lenses in 1784.
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