Bob Forrant of the UMass Lowell Department of History will be on the Callie Crossley show on WGBH-FM radio on Thursday from 1:00 to 2:00 p.m. Bob specializes in labor history, technology & history, and the dynamics of regional economic development. He will discuss the effects of technology on jobs, starting with the way trend of grocery stores transitioning to self-scanners at check-outs.