
How do pianos work?
3 December 2019 - 25 minsBehind every piano’s polished exterior are thousands of parts. From keys to strings, they work together to produce a sound.
In this episode, we take a field trip to a piano shop, peek behind the walls at a world-famous piano factory and have an EPIC FIGHTING BATTLE to discover how sound travels. And the Moment of Um answers this question: “Can you really hear the ocean in a seashell?”
This episode is sponsored by KiwiCo (kiwico.com/brains), Quip (getquip.com/brainson) and the Good Kids podcast. You can support the show and get access to a bonus Mystery Sound extravaganza episode at brainson.org/donate

Tree, Myself and I: All about our leafy green friends
Trees are the strong, silent type but that doesn’t mean they can’t communicate. In this episode we’ll explore how trees send each other messages above ground and below. Plus we’ll learn how a seed goes from a tiny sapling to a towering plant. We find out some fruit facts and hear an all new Mystery Sound. Oh, and our Moment of Um answers the question: why does the moon sometimes change color? This episode is sponsored by Discount Tire (discounttire.com) and Raddish, a cooking club for kids (RaddishKids.com/brains and coupon code BRAINS). You can support the show at brainson.org/donate.
28 mins
20 May Finished