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Scientific Inquiry


Asperion

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The only discussion I have seen of white holes said that yes, there are theoretical frameworks where you could communicate mass-energy between two singularities without traveling through the space-time between them. But the information in the stuff transferred is destroyed. Insert mass on one side, and the E=mc^2 equivalent of energy in the form of thermal radiation and particle-anti-particle pairs comes out the other.

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  • 10 months later...

This will be a good place to place any question that is of a scientific nature. It will not matter how simple it seems (why is the sky blue?) or way more complex than that (explanation of black holes).

Let's get this started off with a good question:

What happens when a black hole is placed inside another black hole?

  

Why, they merge into one, larger hole.

  

That is certainly the end result. There may be some interesting transient goings-on during the merger process, but those depend on details, like relative masses, how much angular momentum is in the system, whether one or both have accretion disks around them at the time and what the orientations (etc.) of those are with respect to the mutual-orbit plane of the black holes themselves, and so on.

It is amusing, in retrospect, that this question was asked 9 days after the gravitational wave detection of a black hole merger that was reported a few months later. (The anniversary of that event is in three days.)

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  • 1 month later...

Clearly you did not suffer through the same year of undergraduate physics that I did.

 

Putting a black hole in another black hole would create a more massive black hole.  However, a black hole in the closing stages of spiraling into another black hole creates a number of interesting effects, like intense bursts of radiation and gravity waves.  It would be an extremely exciting place to be.

Exciting as in, "Oh god! Oh god! We're all going to die!"?  :D

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