Invention Playlist 4: Barbed Wire
![Invention Playlist 4: Barbed Wire](https://www.podcastworld.io/podcast-images/stuff-to-blow-your-mind-j69lx5qa.webp)
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.
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