BIENNALE DI VENEZIA 2012 OLAFUR ELIASSON: LITTLE SUN AVAILABE NOW AT LITTLESUN.COM At the 13th International Architecture Exhibition of la Biennale di Venezia 2012, Olafur Elisasson responds to David Chipperfield's Common Ground exhibition theme by presenting his new artwork, Little Sun -- a solar-powered lamp, designed by Elisasson together with engineer Frederik Ottesen, for the…