What did people do for fun before photoshop? I don't even remember.
Please enjoy the entire blog at Tumblr (of course): Cat Scientists of the 1960s.
Maggie Koerth-Baker is the science editor at BoingBoing.net. She writes a monthly column for The New York Times Magazine and is the author of Before the Lights Go Out, a book about electricity, infrastructure, and the future of energy. You can find Maggie on Twitter and Facebook.