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0 h 28 m, 14 oct 1805 año - Atomic Theory: John Dalton

Descripción:

He believed that all matter is made of
atoms. Each element has a different atom and each atom of a specific element is identical. He also made a model with billard balls.

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fecha:

0 h 28 m, 14 oct 1805 año
Ahora mismo
~ 220 years ago