31 août 1670 - Johann Becher and George Stahl (dominated during the 1670s through 1790s) - the Phlogistic theory- when you burned something it lost phlogiston in the air. A problem of the theory resulted in different masses when metals were burned. The problem was fixed by assigning negative masses to phlogistons.
Ajouté au bande de temps:
Date:
31 août 1670
Maintenaint
~ Il y a 353 ans
