What would happen if the Earth were hollow?
4707
Gravitational field intensity inside a hollow sphere
31264
What happens to the magnetic field in this case?
68217
Why the electric potential of Earth is zero?
101868
If the earth has gravity, why don't we all collapse to the center?
143493
Will gravity pull together two bodies from the other side of an empty universe?
9378
Why is the earth a viable return path for power distribution?
49151
Could there be a dark matter planet?
122303
What happens to the water on the surface of the Earth if the Earth is not rotating about its axis in the Earth-Moon system?
69115
Imaginary line on the Earth is straight or not?
66318
Why is the moment of inertia (wrt. the center) for a hollow sphere higher than a solid sphere (with same radius and mass)?
5585
Where did the world go?
38460
What happens when a black hole dies?
119337
Can we escape Earth's gravity slowly?
148583
How fast could Earth spin and sustain life?
2998
If it was possible to dig a hole that went from one side of the Earth to the other...
85419
Will the Earth ever show synchronous rotation? Why and when?
89194
Potential at Center of Earth