[ Follow Ups ] [ Post Followup ] [ Message Board ]

Subject: Re: What happens to the light then?
From: Brian
Date: August 23, 19101 at 15:52:16

In Reply to: Re: What happens to the light then? posted by Steve on September 30, 1999 at 17:34:38:

: Well, if you take a universe where the path of light can't be changed (meaning that gravity can't affect it), then yeah, I guess it would go straight through the center.

: Light, as I understand it, though, is affected by gravity. As light travels into a black hole, the gravitational pull coming from the center is greater than the speed of light, so light just moves to the singularity in the center and stays because the pull is the most powerful there.

: : If a black hole does not change the speed and direction of light(which it does), but instead blue shifts, what happens if you shine a light direcxtly in to the center of a black hole's "singularity"? Wouldn't it pass right through? And if it pulls the light back to stop it from leaving the Event Horizon, why would it not accelerate torward the black hole? Am I missing something?

---

What I think is missing from this thread is the concept of personal time. The speed of light is a constant. "C" Einstein pretty much nailed that to the wall. When light is 'pulled in' to a black hole, the speed of time is changing, not the speed of light. Time moves more slowly near massive objects, and at the most massive objects we know (black holes) time apparently comes to a complete stop. Hence light, no longer experiencing time, is no longer able to move. The speed of light is still constant, but time has stopped so d=r*t gives us a distance of zero because time is zero. the rate (r) has not changed.

 Name: E-Mail: (Optional) Subject: Message: : : Well, if you take a universe where the path of light can't be changed (meaning that gravity can't affect it), then yeah, I guess it would go straight through the center. : : Light, as I understand it, though, is affected by gravity. As light travels into a black hole, the gravitational pull coming from the center is greater than the speed of light, so light just moves to the singularity in the center and stays because the pull is the most powerful there. : : : If a black hole does not change the speed and direction of light(which it does), but instead blue shifts, what happens if you shine a light direcxtly in to the center of a black hole's "singularity"? Wouldn't it pass right through? And if it pulls the light back to stop it from leaving the Event Horizon, why would it not accelerate torward the black hole? Am I missing something? : --- : What I think is missing from this thread is the concept of personal time. The speed of light is a constant. "C" Einstein pretty much nailed that to the wall. When light is 'pulled in' to a black hole, the speed of time is changing, not the speed of light. Time moves more slowly near massive objects, and at the most massive objects we know (black holes) time apparently comes to a complete stop. Hence light, no longer experiencing time, is no longer able to move. The speed of light is still constant, but time has stopped so d=r*t gives us a distance of zero because time is zero. the rate (r) has not changed.
[ Follow Ups ] [ Post Followup ] [ Message Board ]

Copyright © 1999 ThinkQuest Team 25715.