Ask A Genius 372 – Hollow Spheres and Blackish Holes

In-Sight Publishing

Ask A Genius 372 – Hollow Spheres and Blackish Holes

September 1, 2018

[Beginning of recorded material]

Scott Douglas Jacobsen: What happens in a hollow sphere for a passing photon? How does this relate to the posited astronomical bodies, blackish holes (rather than, similarly, black holes)?

Rick Rosner: If you are on the surface of a hollow sphere, you feel the pull of 10 meters per second per second that is holding you on the surface of this hollow sphere. If you drill a hole into the sphere and go into the center of the sphere, you are apparently weightless, wherever you are in the sphere.

The math works out that way. Any photons you should from the surface of the sphere as they crawl out of the gravitational well will lose the same amount of energy as any photons shot from inside the sphere through the hole you’ve drilled in the sphere regardless of where you are shooting from.

So, the gravitational acceleration experienced or a photon would experience as it climbs out of the pit – or the shape of the pit – is it curves downward until you hit the surface, and then it is flat all the way to the center and all the way from the center to the surface again, and then it curves back up.

It is like that shape you have seen. The cone that is pinched with the tip of the cone cut off. And the net effect of passing through all the little hollow spheres all the way to the center of a body is that it looks like the bottom half of a circle, roughly.

And in a blackish hole, we’re saying the scale of space itself tightens up. So, there is more space inside. There is more volume inside a blackish hole than what you see outside of a blackish hole.

That is another thing that buffers the gravitational curvature and evens everything out. At the neck, you get the super severe effects.

The end.

[End of recorded material]


Rick Rosner

American Television Writer


Rick Rosner

Scott Douglas Jacobsen

Editor-in-Chief, In-Sight Publishing


In-Sight Publishing


[1] Four format points for the session article:

  1. Bold text following “Scott Douglas Jacobsen:” or “Jacobsen:” is Scott Douglas Jacobsen & non-bold text following “Rick Rosner:” or “Rosner:” is Rick Rosner.
  2. Session article conducted, transcribed, edited, formatted, and published by Scott.
  3. Footnotes & in-text citations in the interview & references after the interview.
  4. This session article has been edited for clarity and readability.

For further information on the formatting guidelines incorporated into this document, please see the following documents:

  1. American Psychological Association. (2010). Citation Guide: APA. Retrieved from
  2. Humble, A. (n.d.). Guide to Transcribing. Retrieved from

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In-Sight Publishing and In-Sight: Independent Interview-Based Journal by Scott Douglas Jacobsen is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Based on a work at and


© Scott Douglas Jacobsen, Rick Rosner, and In-Sight Publishing and In-Sight: Independent Interview-Based Journal 2012-2017. Unauthorized use and/or duplication of this material without express and written permission from this site’s author and/or owner is strictly prohibited. Excerpts and links may be used, provided that full and clear credit is given to Scott Douglas Jacobsen, Rick Rosner, and In-Sight Publishing and In-Sight: Independent Interview-Based Journal with appropriate and specific direction to the original content.

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