The Cavendish Experiment: In 1797, Henry Cavendish Used Two Small Metal Spheres To Weigh The Entire EarthIf someone asked you to weigh the planet and you had not paid close attention in high school physics, you might have no idea where to begin. How do you measure something you are standing on? It is a bit like being told to weigh your own set of scales without having another set to help...
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