Waves - we usually think of them as something we do when saying goodbye, or when we're at the beach. But there's a kind of invisible wave we interact with all the tie. Sound waves are always around us, and somehow our brain turns these pulses of pressure into what we call "hearing". Come join our special guest Madame Sounds-a-Like on this journey into the world of sound. Keep the learning going after the episode with awesome free exercises at www.WhoSmarted.com See omnystudio.com/listener for privacy information.