All Questions
7
questions
0
votes
0
answers
40
views
Topological illustration of spacetime dilation: which function should I use for isometric lines spacing?
Scientific popularization, when it comes to illustrating spacetime dilation around massive objects, often relies on the description of a two-dimensional square-grid, which can be regarded as a cross-...
1
vote
1
answer
555
views
How can the orbital motion of planets around the sun be calculated taking into account the force exerted by other planets?
In The Feynman Lectures on Physics (Vol. 1, Chapter 9), Feynman explained how to calculate the planetary motion by just using the Newton's laws of motion and the Euler's method as a numerical solution ...
- 87
0
votes
1
answer
43
views
Height oscillations in orbit induced from lunar gravity
I am trying to numerically solve the orbit of a space probe around the moon in a non-spherical gravitational field .
$
\Large
\begin{align}
\frac{d^{2} x}{dt^2} = - \frac{G M x}{(x^2 + y^2)^{3/2}}
- \...
- 161
4
votes
1
answer
155
views
Is it possible to derive curvature of spacetime from EFEs to create a computer simulation of the solar system? [duplicate]
Background
I am a professional scientist (biologist), statistician and a computer programmer, but an amateur physicist so pardon me if this question appears silly. In order to understand general ...
- 143
1
vote
0
answers
66
views
Calculating acceleration due to gravity using General Relativity [duplicate]
A few months ago I wrote a program which simulates how user-defined bodies moved under each other's gravities using Newton's Law of Gravitation. For each body, I calculated the total acceleration from ...
- 572
2
votes
1
answer
1k
views
Einstein field equations (EFE) $N$-body simulator
I made a $N$-body simulator and it works well, but it uses Newton's gravitational equation, which is nice, but I want it to simulate Einstein field equations. Speed of gravity should be simple enough, ...
5
votes
3
answers
323
views
Simulate a physical impact of objects made of finite, small elements
I want to simulate an impact between two bodies according to gravity, and eventually considering other forces to stick matter together. I'd like to use python to do this, but I am open to alternatives....
- 3,930