A curious 15 year old ended up creating the longest grand piano in the world after asking a simple question. Inside a piano, the bass strings are wrapped with copper wire to deepen the sound without needing more length. A young pianist named Adrian asked his piano teacher, "without using copper wire, how long would the bass strings need to be to hit the right notes?" His teacher had no idea, so Adrian decided to figure it out himself. He purchased some piano wire and strung it up in his backyard