Gadgets & Gizmos: Humanoid robot teachers, flat bikes & souped-up car displays

Steve Caplin says that plans for a humanoid robot teacher in New York have been cancelled. In several US state, schools are buying drones designed to combat school shootings. If you store your bike inside, a Flatbike could be useful, with handlebars and pedals that don't stick out. The Cordalock could be the answer to all those bicycle wheels left attached to bike stands. The Chip compact electric car could be a bargain if it does all its makers say it will. There's a crowd-funded tethered drone to provide light outside when camping that might not be properly thought out but more interesting is a gadget to use old tablets to pimp up your car dashboard display. And a Canadian university has found a way of 3D printing contact lenses. Learn more about your ad choices. Visit podcastchoices.com/adchoices