Anaximenes
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Transcript: Anaximenes was a student of Anaximander and also from Aletes in Turkey. He believed that the source of all things was air and that the diversity arose from changes in the primordial substance, that the universe had an underlying homogeneity. That is also a strikingly modern idea because we believe that the universe today had all of its structure emerge from an initially uniform, hot state. Anaximenes believed that the Earth was flat and that it floated on air. This is not a very modern idea, but it was consistent with what he knew and could observe. He believed that the stars were like nails in the celestial vault, hammered through and allowing light to leak through.
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