http://www.google.com.tr/search?q=Pi+G%C3%BCn%C3%BC&hl=tr&ct=piday10-hp&oi=ddle

http://www.google.com.tr/search?q=Pi+G%C3%BCn%C3%BC&hl=tr&ct=piday10-hp&oi=ddle


google pi günü logosu