What was the main effect of the peloponnesain war
A athens defeadted sprta

The Peloponnesian War ended in victory for Sparta and its allies, and led directly to the rising naval power of Sparta. However, it marked the demise of Athenian naval and political hegemony throughout the Mediterranean.

Explanation:

isaac newton first proposed that earth was not perfectly round. instead, he suggested it was an oblate spheroid—a sphere that is squashed at its poles and swollen at the equator.

the idea of the earth being a flat disc is also inconsistent with the fact that a given lunar eclipse is only visible from half of the earth at a time. the only shape that casts a round shadow no matter which direction it is pointed is a sphere, and the ancient greeks deduced that this must mean the earth is spherical.

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