“Had the Earth been flat, a total of three satellites would have been enough to provide this information to everyone on Earth. But someone located on the other side of the Earth would also like to know their position, so they also require a certain number of satellites. “A minimum of three satellites are required to determine a position. “The reason why 24 satellites were used is because on the curvature of the Earth,” Keijer said. GPS relies on 24 main satellites which orbit the Earth to provide positional and navigational information. Keijer, who now works as a forensic marine expert for Robson Forensic, said the existence of GPS, the global positioning system, alone is proof that the Earth is a sphere, not a flat disc. “Nautical charts are designed with that in mind: that the Earth is round.” “Ships navigate based on the principle that the Earth is round,” said Henk Keijer, a former cruise ship captain who sailed all over the globe during a 23-year career. The navigational systems cruise ships, and other vessels, use rely on the fact that the Earth is not flat: theoretically puncturing the beliefs of the flat Earth crowd. There’s just one problem for those seeking to celebrate the flatness of the Earth.
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