when did humans begin to combine the elements to create new materials

April 23, 2010

Posted by worldpeace

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Hi lizzie,
Empedocles, a Greek philosopher and scientist who lived on the south coast of Sicily between 492 BCE and 432 BCE, proposed one of the first theories that attempted to describe the things around us. Empedocles argued that all matter was composed of four elements: fire, air, water, and earth. The ratio of these four elements affected the properties of the matter.

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