Speed of Light & Black Hole: What Happens?

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Discussion Overview

The discussion revolves around the hypothetical scenario of a starship traveling near the speed of light entering a black hole. Participants explore the implications of such a journey, focusing on the effects of gravitational tidal forces and the nature of acceleration in this extreme context.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants propose that a starship would disintegrate due to gravitational tidal effects when approaching a black hole, regardless of its speed.
  • Others argue that the outcome depends on the size of the black hole, suggesting that a small black hole would tear the ship apart before reaching the event horizon, while a large black hole would do so after crossing the event horizon.
  • A participant questions the relevance of the ship's speed relative to the black hole, emphasizing that acceleration and the relative speeds of the ship's components are critical to understanding the disintegration process.
  • There is a discussion about whether the ship could experience spaghettification at speeds near the speed of light and how that would occur.

Areas of Agreement / Disagreement

Participants express multiple competing views regarding the effects of entering a black hole at near-light speed, and the discussion remains unresolved with no consensus reached.

Contextual Notes

Participants highlight the dependence of outcomes on the size of the black hole and the nature of acceleration, indicating that assumptions about relative speeds and tidal forces are crucial to the discussion.

Enjamiering
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What would happen if you were to fly a starship traveling near the speed of light directly into a black hole?

Would it stay in tact because it cannot be accelerating any faster?

Or would it split because it's being accelerated in all directions simultaneously?
 
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It would disintegrate due to gravitational tidal effects. Traveling at near c would not save it.
 
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Enjamiering said:
What would happen if you were to fly a starship traveling near the speed of light directly into a black hole?

Would it stay in tact because it cannot be accelerating any faster?

Or would it split because it's being accelerated in all directions simultaneously?
That would depend on the size of the black hole. For a small black hole, it would be ripped apart (sphagettified) by tidal forces before ever getting to the event horizon. For a large black hole it would be sphagettified some time after it entered the event horizon, also by tidal forces.
 
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phinds said:
That would depend on the size of the black hole. For a small black hole, it would be ripped apart (sphagettified) by tidal forces before ever getting to the event horizon. For a large black hole it would be sphagettified some time after it entered the event horizon, also by tidal forces.
He's asking whether, at ~c, the craft can spaghettify. And if so, how?
 
Enjamiering said:
What would happen if you were to fly a starship traveling near the speed of light directly into a black hole?
Traveling near the speed of light relative to what? The black hole?

Would it stay in tact because it cannot be accelerating any faster?
Speed is restricted to no greater than the speed of light- not acceleration.

Or would it split because it's being accelerated in all directions simultaneously?
Being torn apart means that the pieces are accelerating (and gaining speed) relative to each other. But they start out with 0 speed relative to each other. The fact that the ship is near c relative to the black hole is irrelevant.
 

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