What is Sound? | Episode 03

Right now, invisible waves of air pressure are hitting your ears — and somehow, you’re hearing sound.But here’s the wild part: sound doesn’t actually exist outside your head.What exists are pressure waves moving through air. Everything else , pitch, volume, direction, emotion, is something your brain constructs in real time.In this video, we break down:How your eardrum detects movements smaller than an atomWhy three tiny bones act like an amplifierHow your cochlea turns vibration into electrical signalsHow your brain rebuilds sound from raw neural codeAnd why hearing isn’t passive, it’s your brain actively creating realityThis is one of the most impressive tricks in biology, and it’s happening inside you every second.If you like deep ideas explained clearly, this channel is for you.