Physics Myths vs reality.
Myth: Ball bearings are perfect spheres.
Reality: The ball bearings have slight lumps and imperfections due to manufacturing processes.
Myth: Gravity pulls things straight down at 9.8 m/s/s.
Reality: Gravitational force varies depending on local geology.
You can do this for any topic. Everything is approximations. The only question is if they are good approximations.
Physics Myths vs reality.
Myth: Ball bearings are perfect spheres.
Reality: The ball bearings have slight lumps and imperfections due to manufacturing processes.
Myth: Gravity pulls things straight down at 9.8 m/s/s.
Reality: Gravitational force varies depending on local geology.
You can do this for any topic. Everything is approximations. The only question is if they are good approximations.