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Zhang Heng's odometer, a mechanical carriage.

The Famous Ancient Chinese Inventions of Zhang Heng

Zhang Heng (78-139 AD) was a Chinese astronomer, mathematician, inventor, geographer, cartographer, artist, poet, statesman, and literary scholar from Nanyang, Henan Province, China. He is noted for...
What Role Did Skepticism Play in the Conquests of Alexander the Great?

What Role Did Skepticism Play in the Conquests of Alexander the Great?

Anaxarchus and Pyrrho. These are two names which are not as well known to the general public as those of Socrates, Plato and Aristotle. Yet these men are no less important. While the latter three...