Wind farms are a common sight these days, but humans have been using wind power for about 2,000 years. It wasn’t always for electricity, however, but to mill grain into flour, operate an organ, or pump water. How does a windmill do any of that though? When you see a windmill, the part that
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Earth’s gravitational force pulls on all objects equally, speeding them up with an acceleration of 32 feet per second per second. This means after one second of falling, an object will speed up to 32 feet per second, or about 22 miles per hour. After two seconds, that will double to 64 feet per second
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