? A 7 year old makes an awesome Rube Goldberg machine . This will be an interesting week, since it contains both Pi Day and the Ides of March . Beware! * * * Previous online reading material: 03/05/12 . 02/27/12 . 02/20/12 . 02/13/12 . 02/06/12 . 6 Comments Posted in Ephemera ,