I used to believe that if you took a large sheet of paper, and flew an airplane fast enough, the plane would go through the paper without tearing it.
I believed this until I was about 7 or 8 years old, and I told my smaller brother this, and HE believed it too.
A childhood belief about aeroplanes

others believed things like this
- When I was little, I believed that clouds came from paper mills.— Ryne
- My friend's sister used to think the auto pilot on a plane was an inflatable man like the one in Airplane!— Richard Davies
- Until I tried it in 3rd grade, my parents told me that if I ate paper my poop would come out in packages.— The Mailman
- Turtles can fly. I believed it for ages.
My turtle got lost or probably died and I was told it flew away.Anon - I used to think that when you sent a fax, the paper went through the wires.— em
- I use to think that mummies were wrapped in toilet paper.— Glowworm