Anaximenes
The Greek Elements (Anaximenes)
Anaximenes (570-500 B.C.) believed that air was the primordial substance. When it is compressed, it becomes colder, heavier, and darker -- first wind, then cloud, then water, and eventually earth. When air is dilated, on the other hand, it becomes hotter, lighter, and brighter, until it eventually takes on the properties of fire
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