Trying to push a leaning tower up right is harder than it looks! During ou visit in Florence, we took a day trip to Pisa. The Reason why was to see the Leaning Tower. Why this leaning tower was built, was to do an experament on gravitation. when the construction was finished, a man leaned over the side and droped a led ball and a fether from the top at the same time and they both hit the ground at the same time.
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