Black hole physics and general conversation to understand and communicate ideas about black holes.

Feb 29, 2024
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Could it be that a black hole works the same way that sodium does under pressure? The electrons are packed so tight that the light passes directly through? The black hole allows light to pass through and around it's space time mass?
 
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Could it be that a black hole works the same way that sodium does under pressure? The electrons are packed so tight that the light passes directly through? The black hole allows light to pass through and around it's space time mass?
The "photo" of the black hole produced earlier (last year?) suggests that the answer to that is "No" as stars should have been visible through the hole. The data was heavily massaged to produce the image, so it is definitely not definitive proof of the negative.
 
Could it be that a black hole works the same way that sodium does under pressure? The electrons are packed so tight that the light passes directly through? The black hole allows light to pass through and around it's space time mass?

The behavior of black holes and sodium under high pressure involves complex physics, but they are fundamentally different phenomena.

For black holes, according to general relativity, they warp spacetime around them due to their immense mass. Light passing near a black hole follows this curved spacetime, which can result in light bending around the black hole. However, if light gets too close and crosses the event horizon, it cannot escape due to the extreme gravitational pull. This is why black holes are perceived as “black”; they do not let light pass through or escape once it’s within the event horizon.

On the other hand, when sodium is subjected to extreme pressure, its electrons become trapped in the interspatial regions between atoms, known as an electrode state. This causes sodium to transform from a shiny metal to a transparent insulator. In this state, free-flowing electrons, which normally absorb and retransmit light, are absent, allowing light to pass through.

So, while both phenomena involve interactions with light, a black hole’s interaction is due to gravitational effects on spacetime, whereas sodium’s transparency under pressure is due to changes in its electronic structure. Black holes do not allow light to pass through them; instead, they trap light that comes too close, while sodium under pressure allows light to pass through because it becomes an insulator with trapped electrons.
 

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