Light travelling through a black whole

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Discussion Overview

The discussion revolves around the behavior of light in the gravitational field of a black hole, particularly focusing on whether light can escape a black hole and the implications of space-time curvature on light's trajectory. The scope includes theoretical considerations and conceptual clarifications regarding black holes and general relativity.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • Some participants propose that light appears to be bent due to the curvature of space-time caused by a gravitational field, suggesting that this bending affects the path and time taken by light.
  • One participant questions whether light can escape a black hole, suggesting that it may take a very long time to do so, except for light that reaches the singularity.
  • Another participant asserts that all light that crosses the Schwarzschild radius will never escape and will ultimately reach the singularity, emphasizing this as a defining feature of the Schwarzschild radius.
  • There is a contention regarding the phrasing of light's path being "bent" versus it being definitively bent, with one participant arguing that the bending is an established fact rather than an appearance.

Areas of Agreement / Disagreement

Participants express disagreement regarding the nature of light's escape from a black hole, with some suggesting it may take a long time while others assert that all light crossing the Schwarzschild radius is doomed to reach the singularity. The discussion remains unresolved.

Contextual Notes

Limitations include assumptions about the nature of light and gravitational fields, as well as the definitions of terms like "Schwarzschild radius." There are unresolved questions about the implications of time dilation and the exact nature of light's trajectory in extreme gravitational fields.

Twistedfate
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If light always travels in a straight line, the only time light appears to be bent is when a large gravitational field bends the space-time around it distorting the straight and time line the light is traveling in.

So light traveling through a black hole gravitational field would be slowed down in two ways. 1. The distance it would have to travel would be greatly increased by the bending of space. 2. Time is also stretched increasing the time it will take to travel thought the space.

Dose this mean that light can always escape a black hole but just takes a very long time to do so? An only light that doesn’t come out of the black whole is the light that hits the singularity.

I apologise if any of this is spelt wrong, I am dyslectic and I think everything is spelt right.
 
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Dose this mean that light can always escape a black hole but just takes a very long time to do so? An only light that doesn’t come out of the black whole is the light that hits the singularity.
Your second sentence essentially gives the answer - all light ends up at the singularity.
 
Twistedfate said:
If light always travels in a straight line, the only time light appears to be bent is when a large gravitational field bends the space-time around it distorting the straight and time line the light is traveling in.

Appears to be bent? It is bent. No one would say the path of the Earth only appears to be bent...
 
All light that crosses the Schwarzschild radius will never escape; it will curve toward and ultimately reach the singularity. I do believe that is the defining feature of the Schwarzschild radius.
 

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