Invention Playlist 4: Barbed Wire

You may very well encounter barbed wire everyday -- and, in all likelihood, you see THROUGH this flesh-ripping barrier. Where did this invention come from? How did it change the world? Robert and Joe discuss “the devil’s rope” in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.