Great Analogy of Holding a Rope Above a BH?

In summary, the conversation discusses the idea of holding a rope above a black hole and releasing it, causing the bottom of the rope to stay suspended until the force holding it is removed. The conversation also mentions a video that may serve as a good analogy for this concept.
  • #1
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...
 
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  • #2
Great video.
 
  • #3
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:
 
  • #4
Awesome, thanks Ryan.
 
  • #5


I appreciate the use of analogies to help explain complex concepts. In this case, the analogy of holding a rope above a black hole is a good one to help visualize the effects of gravity on objects near a black hole.

In the video, the rope represents an object held above the event horizon of the black hole. Just like the rope, any object held above the event horizon would experience a strong gravitational pull towards the black hole. However, the object would not immediately fall into the black hole, just like the rope does not immediately fall to the bottom.

This is because of the force holding the rope (or object) in place, which is similar to the force of gravity pulling on the object. This force is strong enough to keep the object suspended for a period of time, as shown in the video. However, once the force is removed (by letting go of the rope), the object will eventually succumb to the strong pull of gravity and fall into the black hole.

So, in summary, the analogy of holding a rope above a black hole is a good way to understand the effects of gravity on objects near a black hole. Just like the rope, objects near a black hole experience a strong gravitational pull, but may not immediately fall in due to other forces. And just like the rope falling into the black hole, objects will eventually be pulled in by the immense gravitational force.

As for embedding videos, it can vary depending on the platform or forum you are using. In this case, I believe you can simply copy and paste the video link into the text box and it should automatically embed. However, if that doesn't work, you may need to use a specific code or button provided by the platform to embed the video.
 

Related to Great Analogy of Holding a Rope Above a BH?

1. What is the "Great Analogy of Holding a Rope Above a BH"?

The "Great Analogy of Holding a Rope Above a BH" is a theoretical analogy used to explain the concept of event horizons and black holes in astrophysics. It compares the act of holding onto a rope that is tied to a heavy object to the gravitational pull of a black hole.

2. How does the analogy explain the concept of event horizons?

In the analogy, the rope represents the gravitational pull of the black hole, while the heavy object represents the event horizon. Just as it is impossible to pull the heavy object away from the rope, it is impossible for anything, including light, to escape the gravitational pull of the black hole when it reaches the event horizon.

3. What does the analogy reveal about the nature of black holes?

The analogy illustrates the immense strength of a black hole's gravitational pull, as well as the fact that once an object crosses the event horizon, it is essentially trapped forever. This demonstrates the extreme density and infinite curvature of space-time near a black hole.

4. How does the analogy relate to real-life observations of black holes?

The analogy is based on the theoretical concept of black holes, which has been confirmed through observations of the effects of their gravitational pull on surrounding matter and light. It helps to visualize and understand the behavior of black holes, although it is not a perfect representation of the actual physics involved.

5. Why is the analogy of holding a rope above a BH useful?

The analogy is useful because it provides a simple and relatable way to understand the complex concept of black holes and event horizons. It allows for a better understanding of the extreme nature of black holes and their impact on the surrounding universe.

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