A spherically symmetric shell has no effect on the gravitational field inside. It will not pull the surface of a hollow Earth outwards.
You’re correct. There’s other ways to guard against collapse of an empty shell, it’s a similar scenario to guarding against collapse of a Dyson sphere.
A spherically symmetric shell has no effect on the gravitational field inside. It will not pull the surface of a hollow Earth outwards.
You’re correct. There’s other ways to guard against collapse of an empty shell, it’s a similar scenario to guarding against collapse of a Dyson sphere.