August 26, 2011 7:02 am Hi-Tech Back-To-School Tools Mr. Gadget stops by the NBC San Diego studio to give an overview of the hottest new gadgets that students can use this school year. US & World Videos 0:35 Blue blobs washing up on San Diego beaches again 2:51 Oceanside Pier fire draws comparison to Seal Beach fire several years before 1:45 NYPD enters Columbia University in riot gear to clear protest 3:24 Four San Diego businesswomen frustrated in efforts to recover money 1:56 New equipment headed to tribal lands just ahead of San Diego's fire season