Russia π·πΊ @Russia
π #OTD in 1735 legendary self-taught Russian inventor Ivan #Kulibin was born. During his prolific career, he designed an egg-shaped clock, a one-arch bridge over the Neva river, an elevator, an optical telegraph, a push-cycle cart, mechanical prostheses, spotlights & much more. https://t.co/0zNjcKSsAn — PolitiTweet.org