There are hundreds of former nuclear reactors around the world, which are harmful for those trying to decommission them. That's where a four legged robot called Spot comes in and Tech Life have been to meet it. Also in this episode; the impact of auto-correct constantly misspelling names and how scientists are using AI and tourist boats to learn more about whales. Presenter: Shiona McCallum Producer: Alasdair Keane (Picture: Spot the robot at a decommissioned nuclear plant /BBC)