Stuff You Should Know

Safety pins are so ubiquitous, we take them for granted. But that’s the genius of their design – they work so intuitively they might as well have come from nature. Instead, they were invented by a man who never went to the trouble of patenting them.  Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.