I used to believe that whenever you switched on a light a little man ran (extremely fast) through the wire and turned the lightbulb on. I stopped believing this when I saw how small the wire that the "little man" ran through really was!
A childhood belief about physics

others believed things like this
- My dad told me that the reason Birds didn't get electrocuted on overhead wire was they had rubber feet!!— Derricki
- I used to think that if you shone a flashlight beam onto a lightbulb long enough, it would eventually light.— Karen K
- I used to believe 'three bean salad' was an extremely small entree because it contained only three beans.— queeneve
- that the green traffic light turned blue when it was off— Kriket Evens
- I used to think that there were small people on TV who worked when I turned on the TV— JAVIER
- For some reason I thought any 4X4 vehicle would pull a wheelie when switched into 2 wheel drive.— Richard Davies