The phenomenon develops calmly, but it is invisible, unstoppable. One feels, one sees it born and grow steadily; and it is not in one's power to either hasten or slow it down.
-- Leon Foucault
   
Leon Foucault   Name:
Leon Foucault
Type:
Inventor
Nationality:
French
Birth:
September 18, 1819
Death:
February 11, 1868
https://www.nutquote.com/quote/Leon_Foucault