I was convinced that hot air sinks. Why else are mountain tops cold, and Death Vally is so hot?
A childhood belief about physics

others believed things like this
- I believed the urinals in port-o-potties were sinks.Anon
- When I was little, I used to believe that the tops of trees touched the sky.Anon
- I used to believe that sonic booms were huge explosions that only occured at the very tops of mountains.— Jessica Tinch
- I used to believe that it wasn't wind that made the tops of trees move.. It was dinosaurs.— H
- I used to think that the chorus of "mountain song" by jane's addiction was in a different language— nothing'sshocking
- I used to believe that when I went to the mountain I would find an ancient monster or find some treasure— Yazer Solorzano