If you could ride an elevator through the earth
2998
If it was possible to dig a hole that went from one side of the Earth to the other...
63601
If I'm floating in space and I turn on a flashlight, will I accelerate?
31498
Will something accelerate forever if a constant force is applied to it on a frictionless surface? If so how?
48981
How far into space does one have to travel to see the entire sphere of earth?
19639
Would it help if you jump inside a free falling elevator?
102700
A gateway to a new world/future where things can be improved with use
154914
What will I see if I travelled to a distant planet in 100 times faster than speed of light and look back?
81905
How did Einstein generalise the Einstein elevator thought experiment to conclude with the equivalence principle?
106274
What's the weight of the earth?
91171
What do you feel when crossing the event horizon?
157991
Lowest gravity on Earth's surface?
48001
Can a hovering helicopter travel half the globe in 12 hours?
43961
Work done against gravity
2757
Would you be weightless at the center of the Earth?
36719
Gravitational time dilation at the earth's center
126134
What would happen if you portalled the TARDIS inside itself?
27986
Is the graviton hypothetical?