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3 votes

General Relativity visualization software

For particle/light motion in 2D space, my nomination would be GROrbits It's free and requires a JVM to run, there is also a web start version for the brave ;) Sorry but I've never found anything ai …
2 votes

Terrell-Penrose effect and surface reflectance

Concentrate on the nearest top die on the right. The reason you can see the "four" face is that you have already passed the "one" face of the die! It is just that aberration has distorted the image …
m4r35n357's user avatar
  • 1,908
1 vote

Can we represent 4D graphically?

One way of looking at dimensionality is the number of points that can be placed equidistantly, minus one. So you can place two points for a line (1D), three points in an equilateral triangle for 2D, a …
m4r35n357's user avatar
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0 votes

How to plot Kerr geodesics?

Simply solving the geodesic equations with a "standard" integrator (e.g. RK4 and friends) suffers badly from energy drift in my experience. To get an accurate and time-stable solution you might be in …
m4r35n357's user avatar
  • 1,908