All Questions
10
questions with no upvoted or accepted answers
2
votes
1
answer
110
views
Which location on Earth has the strongest deviation from the vertical due to gravity?
So, I've recently learned about the Schiehallion experiment, performed in 1774, where scientists detected the deviation from the vertical of a plumb due to the gravitational attraction of a single ...
- 2,987
2
votes
0
answers
123
views
Could water physically makeup the core of a planet or otherwise large celestial mass?
Knowing very little about the nature of water, wondering how it might behave at the centre of a planet or centre of an another massive gravitational body.
Could water take such pressures or might it ...
- 451
1
vote
1
answer
112
views
Why does $g$ vary from a direct square relationship inside the earth to an inverse square relationship above the earth's surface?
Why does acceleration due to gravity $g$ vary with altitude, height, and depth from a direct square relationship inside the earth (below the earth's surface) to an inverse square relationship above ...
user324347
1
vote
0
answers
41
views
Atmospheres and oceans on lower gravity planets
Using Earth as an example, how much less gravity could the planet exert and still retain its atmosphere and oceans? Or is it a matter of size, mass, magnetosphere, place in the solar system, all of ...
- 111
1
vote
0
answers
79
views
On the formation of Earth's moon
NASA states that :
The moon was formed ~4.5 billion years ago, about 30–50 million years
after the origin of the Solar System, out of debris thrown into orbit
by a massive collision between a ...
- 111
0
votes
1
answer
202
views
Can anyone explain how does an object move upward from the surface of the earth defying the spacetime curvature?
I am trying to understand the while concept of spacetime curvature. Space is a fabric which is bent by heavy masses. But I don't understand that why objects follow the geodesics and get attracted to ...
0
votes
0
answers
38
views
Does anyone know where I can find values of gravity?
Does anyone know where I can find the values of gravity at different places across the globe and at different heights? I am doing an assessment on gravity and can't find any data for the values of ...
0
votes
0
answers
44
views
Large objects in the universe sized by gravitational and electrical constants
In a famous talk (from 14:30 to 15:00) Nima Arkani-Hamed tells us that what "fixes the size of the earth" is the equilibrium between the gravitational pressure against the atomic pressure of the atoms ...
- 406
0
votes
1
answer
120
views
Is there any way to create a globe with gravitational or similar attractive force - earth simulator?
This may sound like a dumb question.
Is there anyway to create a miniature version of earth or its gravitational force.
A globe or sphere which have force inside it which can attract the things ...
- 109
0
votes
1
answer
42
views
Distribution of Earth's mass and its role in the nodal precession of satellites?
From what I have read and understood so far, the nodal precession of a satellite in low Earth orbit is caused by the bulge equatorial of the Earth (caused by its rotation on itself) which moves the ...
