Contents
0:00 Introduction
0:20 Gravitational lensing
2:35 Gravitational potential
7:37 Refraction simulations
8:37 Gravitational index of refraction
12:11 Simulating gravitational lensing using a refractive index
13:45 Spatial refractive index vs General Relativity
Erratum:
1) The gravitational constant has a missing minus sign in the exponent. The value should be 6.7x10^-11 N.M^2.kg^-2.
The idea of a Gravitational Index of Refraction is not new. Here is a reference to a recent article by D.H.W Reffer (date unknown but after 2018):
[ Ссылка ]
Links to other nice videos on Refractive index:
3Blue1Brown: [ Ссылка ]
Terra Physica: [ Ссылка ]
Looking Glass Universe: [ Ссылка ]
Wave simulations were made using the python scrip provided by @DiffractionLimited YouTube channel.
Link to the code download: [ Ссылка ]
Animation of the dancing quarks at the end of the video by "Arts at MIT".
Royalty free music used:
Cat Circus - Doug Maxwell
Always Remember to Never Forget - The Whole Other
Yoga style - Chris Haugen
Thanks very much for making this!
End tune: Floating - Early Birds
In the video, the simulations were sometimes paused to relieve the YouTube compression algorithm and the viewers' eyes a bit.
Did I forget anything? Let me know and I'll set it straight.
