i used to believe that if you were in a falling elevator, you could just jump at the last minute before it crashed at the bottom of the lift shaft, thus reversing your direction while the lift crashed around you. Then you'd land (still inside the mangled lift wreckage) as if you were landing after a normal jump. Genius.
A childhood belief about physics

others believed things like this
- I used to belive if someone liftes you up, and you lift them at the same time, you will float in the air.— D'Anthony
- I thought it was impossible for anyone to lift more than their own body weight. Just seemed to make sense..— Xenomorph
- I never knew why boys had to lift up the toilet seat...until my friend told me that boys had bad aim.Anon
- When i was younger i thaught that thunder came when two skies crashed and the ligthning was sparks— Rickard
- When I used to see the sign 'police accident' I thought it meant that a police car had crashed.Anon
- I ues to believe that if I broke th TV the people would jump out and try to catch me.— Lazyj (K)