Did you know windmills have been used since 2000 B.C.? First developed in Persia and China they were used to propel boats, pump water, and grind grains. 🌾 In 1941 the first megawatt-size wind turbine was built. The largest is 20 stories tall and has blades the size of a football field! Come back later for a laugh on #punnyfriday where humor and STEAM combine. 😂 #tempegeeksnightout #gno #gno2023