I spent many frustrating hours believing that if i tried hard enough I could lift myself off the ground with no means of support. I also thought if a lift was plummeting down a shaft you would be perfectly alright if you gave a little jump just before it hit the floor.
A childhood belief about physics

others believed things like this
- I thought it was impossible for anyone to lift more than their own body weight. Just seemed to make sense..— Xenomorph
- 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 never knew why boys had to lift up the toilet seat...until my friend told me that boys had bad aim.Anon
- I believed that if I swallowed my phlegm I would die. I spent hours spitting it out into the toilet.— chunky munky
- i used to believe that scaffolding was used to support buildings when they were having work on them.Anon
- I thought ground beef was the meat they scraped off the ground at the slaughterhouse. Yuck.Anon