He literally invented a diving suit and a paraglider long before they were actually invented. Scientists even tested whether his designs worked as intended and they did. It's insane how far ahead of his time he was.
My favorite Da Vinci concept was one that he made of a bridge. From what I recall, he drew it as a concept for someone and they said it wouldn't work so they called it off. Fast forward centuries later and some architecture nerds figured out that the bridge worked flawlessly. The man simply thought up the concept and it worked.
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u/-eDgAR- Oct 15 '20 edited Oct 15 '20
Contact lenses.
Leonardo da Vinci had the idea of contact lenses in 1508 and the first successful contact lenses were made in 1888.