This is Dr. Robert H. Dennard’s office blackboard.
Dr. Robert H. Dennard, 78, invented dynamic random access memory, or DRAM, in 1966 while working at the Watson Lab. Dennard, an IBM Fellow (1979), was awarded the National Medal of Technology by President Ronald Reagan in 1988. He still comes to work every day at the Yorktown lab where he has worked for over 50 years.
Genius is chaotic. (via)