In this episode of Wow, I Never Knew That, as a kid, on a hot summer's day, nothing cools you down like a frozen fruity POPSICLE. You'll learn how an 11-year old boy created this sweet icy treat. And, have you ever noticed those colored spinning poles outside the BARBERSHOP? You'll be in STITCHES when you learn how they got their start. Plus, find out how a melting chocolate bar gave way to the invention of the MICROWAVE. And, what's the real name for the POUND KEY on a telephone? And why we get a BRAIN FREEZE when drinking something ice cold.