The electroencephalogram represents a continuous curve with continuous oscillations in which... one can distinguish larger first order waves with an average duration of 90 milliseconds and smaller second order waves of an average duration of 35 milliseconds.
-- Hans Berger
   
Hans Berger   Name:
Hans Berger
Type:
Scientist
Nationality:
German
Birth:
May 21, 1873
Death:
June 1, 1941
https://www.nutquote.com/quote/Hans_Berger