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what you see on the screen now is considered the first vending machine in history yeah it looked like that it was a very simple device you threw a coin and got a glass of holy water in exchange this machine was first described in the works of hero of alexandria a mathematician and engineer who lived during the first century a.d nowadays these machines are everywhere but its difficult to imagine that they were invented that long ago in this video well talk about technologies and inventions of the past which even today can shock the whole modern world here we go more than two thousand years ago a powerful weapon was created in china it could only be compared in power to the kalashnikov rifle it was probably the first rapid-fire weapon in history although people were still far away from the invention of bullets and other modern gizmos and if you dont understand why its so cool well heres a simple explanation the more shells a soldier can fire the more efficient he is and the chinese