June 24, 2013 11:32 pm Bay Area Company Helped Navigate Grand Canyon Tight Rope Stunt Hayward-based Davis Instruments provided equipment to help monitor wind and temperature during high-wire act. George Kiriyama reports. US & World Videos 0:28 A Vermont state trooper plunges into icy pond to rescue 8-year-old girl 2:59 Keep these travel etiquette tips in mind this holiday season 2:20 Bodies of Missing Men Found in Rubber Bins Inside Storage Unit 1:42 Hundreds of Golden Retrievers Walk a Mile for the Official Boston Marathon Dog 1:51 Typewriter Shop Owner Receives Gift From Tom Hanks