![]() He also noted that during a lunar eclipse the Earth’s shadow is round. Aristotle (4th century B.C.) agreed and supported the hypothesis with observations such as that the southern constellations rise higher in the sky when a person travels south. Hardly impressive, as noted in our BrainFood Show podcast, bees also use this fact in their own absurdly fascinating navigation and in communicating directions to other bees.Īs for humans, we took a little longer to realize this, with Pythagoras (6th century B.C.) generally credited with being the first known person to have suggested a spherical Earth, though the idea didn’t exactly catch on at this point. ![]() Contrary to popular belief, a decent percentage of the human population has known definitely the Earth was roughly spherical for over two thousand years.
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