|
|
|
|
|
Giulio Cesare La GallaGiulio Cesare la Galla (1576–1624) was a professor of philosophy at the Collegio Romano in Italy. In his book De Phenomenis in Orbe Lunae (published in Venice in 1612) he claimed that the untreated stone (known as "lapis solaris" and shown to him by Galileo Galilei) was unable to give off light only after calcination. We now know that the "Bolognian Stone" was a piece of barite (barium sulphate). External Links Galla, Giulio Cesare la Galla, Giulio Cesare la
|
 |
|
| Copyright 2005-2009 OnPedia.com. All Rights Reserved |
|
|