The exhibit of Ai Weiwei's 100 million hand-made porcelain sunflower seeds at the Tate has been shut down due to noxious ceramic dust. (Via Kristi Lu Stout)
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. Come and hear Mark speak at the ALA conference in Chicago on July 1.