#persianwheel

you think youre so smart with your smartphones and your laptops but have you ever heard of the persian wheel its a ancient irrigation system that used animals to lift water up to 200 feet and was built over 2000 years ago or how about the windmill which was invented in the 9th century and was used to pump water and grind grain and donth even get me started on the armillary sphere which is basically an ancient analog computer that could calculate the positions of the stars and planetswatch full video: https://youtu.be/B6rMp52pFaM?list=PLjBgcvtYPpOStiXCX1octyb7Li5I4LiXM