OPINAUTICS

This was a recent discovery that fascinated me, it is at Punto Bernal Podcast. 

First: this photo was generated by Copilot. And it's cool that it has these elements:

1. Hawking Radiation.

2. Planets, which may be falling to the Black Hole but may also be orbiting him.

3: And the tidal accretion disk.

In the podcast they talked about these elements, which are also themes present in the Interstellar movie (2014).

So, the thing was, Antonio were talking about a paper from 1982, in wich the autor said that the Navigation in a Black Hole's Acretion Disc is called: OPINAUTICS (ou can find it about the minute 43:33). What is REAL surprising, is the fact that the article does not exist on the internet. It is nowhere to be found. Only the references to the article in Sky & Telescope magazine.

This is the paper: Sheldon, E. “Opinautics: A Matter of Much Gravity” in Sky & Telescope, Aug. 1982, p. 118.

You can find it in a selected list of referencies for to study Black Holes, and described like this: "A somewhat more technical article on what it is like around a black hole". And you can download it here. The article should then, be searched in databases that give the information of the libraries that have the physical volume.