Happy birthday George

It is George Boole's birthday.
George invented Boolean Algebra
He also wrote books:  An Investigation of the Laws of Thought and The Mathematical Analysis of Logic. 
George's wife Mary wrote the whimsical title: Philosophy and Fun of Algebra

Man In Space

Yuri Gagarin - Celebrate

Happy Birthday (approx) CSIRAC

CSIRAC was commissioned in 1949 around this date .

https://www.youtube.com/watch?v=tvbU00dpnlg
http://ww2.csse.unimelb.edu.au/dept/about/csirac/

May the fourth be with you

Celebrate

Reading

Megatokyo Volume one