Today is George Boole's birthday!!!
(you'd know from the Google's Doodle today)
Get the permalink here: http://www.google.com/doodles/george-booles-200th-birthday
Do you know who is George Boole?
Image credit: Wikipedia/George_Boole
He is an English mathematician, educator and logician, who introduced the Boolean algebra, which describes the logical relations in digital electronics and modern programming languages :D
Image credit: metatoday.com
I still remember the 'cool' way to jot notes back in my uni time; for example 'x∧y' instead of 'x and y', which saved a lot of time (and the life of my pen) :D I can tell you, only mathematicians can read my notes; others would have no idea what was I writing!!