In 1797, Henry Cavendish Used Two Small Metal Spheres To Weigh The Entire Earth
If someone involve you to librate the planet – assuming you have n’t paid much care during physics in high schooling – you might not know where to protrude . How do you librate a affair you ’re fend on ? That ’s like being asked to count your own scale without using a 2nd set of scales . If you ’re struggle , do n’t despair . calculate out how to weigh ( well , bill themass ) of the Earth take until 1687 , and even then we could n’t work out it until 1798 ....