Imagine an Earth sized planet consisting of only ferrous metals. The creatures living on the planet move around like a maglev trains, interacting with the world and each other electromagnetically.
The planet generates a powerful magnetic field of at least 10 tesla!
Let us suppose this interstellar planet is alone in a super void drifting through the emptiness of space and the inhabitants managed to develop calculus.
I'm wondering, since electromagnetic force is much much greater than gravitational force, would these creatures ever know gravity exists?
