Transcript (en)

Did you know you could use Play-Doh to pull a crazy trick on your brain? And it all has to do with those weird folds we have in our ears. Art, this is weird. Pearson, it's for science. As you can see here, when I blindfolded Pearson earlier with no Play-Doh in the folds of her ears, it was obviously really easy for her to tell where I was. Right there? But now that she has Play-Doh in her ears, watch what happens next. Uh. What the? Like down here? It all feels like it's right here. I actually don't even know. If I had to guess, I would say here. That's really insane. I usually pride myself on my hearing. I guess not. So those weird folds in your ears help you know where sounds are coming from because sounds bounce off these bumps, and your brain learns how to understand these bounces. But if you take the bumps away, you can still hear the sound. It's just much harder to know where it's coming from, especially in the front and back. Which makes this a very useful hack for Marco Polo. Marco! Polo!