What Would Happen if I Threw My Watch into a Black Hole?

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    Black hole Hole watch
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Discussion Overview

The discussion revolves around the hypothetical scenario of throwing a watch into a black hole, exploring the implications of such an action from a theoretical perspective. Participants discuss the effects on time perception, visibility, and the fate of the watch as it approaches and crosses the event horizon.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants suggest that the watch would appear to slow down as it approaches the black hole, eventually appearing to halt at the event horizon.
  • It is proposed that the light from the watch would become redshifted and fainter, making it undetectable as it nears the black hole.
  • One participant mentions that while the watch appears to slow down and never cross the horizon from an outside perspective, it would actually cross the horizon without issue.
  • Another participant emphasizes that the watch would contribute to the mass of the black hole once it crosses the event horizon.
  • There are multiple references to external resources for further information, though these do not contribute to the discussion directly.

Areas of Agreement / Disagreement

Participants generally agree on the effects of time dilation and redshift as the watch approaches the black hole, but there are nuances in how they describe the visibility and fate of the watch, indicating some disagreement on the specifics of the scenario.

Contextual Notes

Some statements rely on assumptions about the observer's perspective and the nature of light near a black hole, which may not be fully articulated. The discussion does not resolve the complexities of these assumptions.

Emmanuel_Euler
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what does happen if i threw my watch into a black hole??
 
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You don't see the watch fall and the clock work.
 
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TESL@ said:
You don't see the watch fall and the clock work.
that what i want to hear!
 
Your watch will appear to slow as it approaches, and virtually halt by the time it reaches the event horizon. Photons emitted, or reflected by the watch face can no longer escape the intense gravity of the black hole.
 
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and when it's infall does seem to have virtually halted to you, it will keep showing virtually the same time to you,
but light from it will get redder and redder until it is no longer detectable.
It will apparently fade away into non existence.
 
It ticks (as measured by you) slower and slower, you see it redder and fainter, getting closer and closer to the horizon but never crossing it. In reality it crosses the horizon, no problem, you will just never see it. And so the black hole gets heavier by the mass of a watch.
 
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The watch will start to slow once it approaches the black hole and as it enters the black hole the watch will stop.
 
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So many people answered the question and there is no reason to bump the thread. Let this be the last.
 
  • #11
TESL@ said:
So many people answered the question and there is no reason to bump the thread. Let this be the last.
ohhh sorry i forget to thank all who helped me.
 

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