I used to believe that sonic booms were huge explosions that only occured at the very tops of mountains.
A childhood belief about physics

others believed things like this
- When I was little, I believed that sonic booms were from airplanes passing gas! haha!
— coconut - I used to believe that Knuckles (from Sonic the Hedgehog) was an enchilada.Anon
- When I was little, I used to believe that the tops of trees touched the sky.Anon
- I was convinced that hot air sinks. Why else are mountain tops cold, and Death Vally is so hot?— Not-my-wife
- I used to believe that it wasn't wind that made the tops of trees move.. It was dinosaurs.— H
- When I was a teenager, I used to believe that someone's name-day occured as half-birthday.— Marcas