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MTL - Into Unscientific - Chapter 134 Cramming education is not advisable (6400 words large
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... has always been a very controversial topic.
When introducing Zhang Zai, he mentioned the origin of the theory of the circle of the earth:
Later generations generally believe that the theory of the circle of the earth officially appeared in the 6th century BC.
That is, the ancient Greek mathematician Pythagoras first proposed the concept of the earth.
Wait until the 3rd century BC.
The scientist Eratosthenes, who lived in Alexandria, established the ...
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