Euler and the Flattening of the Earth

@article{Heine2013EulerAT,
  title={Euler and the Flattening of the Earth},
  author={Georg Heine},
  journal={Math Horizons},
  year={2013},
  volume={21},
  pages={25 - 29}
}
  • G. Heine
  • Published 1 September 2013
  • Physics
  • Math Horizons
B y the middle of the 17th century, after the round-theworld voyages of Fernão de Magalhães (Ferdinand Magellan), Francis Drake, Ignacio de Loyola, and others, there could no longer be any doubt that the Earth was round. It was generally assumed that the shape was in fact a perfect sphere; after all, Aristotle had stated that the sphere was the most perfect of all geometric figures. But some odd bits of evidence otherwise began to appear. In 1665, the celebrated astronomer Giovanni Cassini… 

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