Mary’s “Virgin” Explanation Made Joseph Suspect Upstairs Neighbor Posted on December 21, 2011December 19, 2011 by Sam Kornstein in Cartoons Some New Science Mnemonics, via xkcd: Related posts:Food Chain Shake-UpCurses, Hexes, and RelativityVox: This might be the best map of the 2016 election you ever seeSubways of North America Related