Great Analogy of Holding a Rope Above a BH?

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Discussion Overview

The discussion revolves around an analogy involving holding a rope above a black hole and the implications of releasing it. Participants explore the dynamics of how the force propagates along the rope in relation to the black hole's gravitational effects.

Discussion Character

  • Exploratory, Conceptual clarification

Main Points Raised

  • One participant suggests that if a rope is held above a black hole and then released, the bottom of the rope would remain suspended until the force from the top propagates downwards.
  • Another participant expresses appreciation for the video linked in the initial post, indicating it may effectively illustrate the concept.
  • A third participant provides guidance on how to embed YouTube videos in the forum, which is unrelated to the main conceptual discussion but addresses a technical question raised by the first poster.

Areas of Agreement / Disagreement

There is no explicit disagreement noted, but the discussion primarily focuses on the analogy rather than a detailed exploration of the underlying physics, leaving the conceptual implications somewhat open-ended.

Contextual Notes

The discussion does not delve into the specific physical principles governing black holes or the mechanics of force propagation, which may limit the depth of understanding regarding the analogy presented.

Who May Find This Useful

Participants interested in analogies related to black hole physics, as well as those looking for technical guidance on embedding media in forum posts.

Drakkith
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So I understand that if one could hold a rope above a black hole and suddenly let it go the bottom would stay suspended until the removal of the force holding it propagates from the top to the bottom. Is this video a good analogy?

http://www.youtube.com/watch?feature=player_embedded&v=8UimHnsWSBc

P.S. How the heck do you embed these...
 
Astronomy news on Phys.org
Great video.
 
Drakkith said:
P.S. How the heck do you embed these...
At the end of the URL for a youtube video there is a number with a V and an equals infront of it. For this one it is: v=8UimHnsWSBc

Simply take the number and click the youtube button to wrap it in {YOUTUBE}{/YOUTUBE} (with "[" instead of "{" of course).

https://www.youtube.com/watch?v=8UimHnsWSBc

If you quote this you should be able to see what I've done if that's still not clear :smile:
 
Awesome, thanks Ryan.
 

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