986 Forum - The Community for Porsche Boxster & Cayman Owners

986 Forum - The Community for Porsche Boxster & Cayman Owners (http://986forum.com/forums/)
-   Boxster General Discussions (http://986forum.com/forums/boxster-general-discussions/)
-   -   Why Are Black Holes Black (http://986forum.com/forums/boxster-general-discussions/50817-why-black-holes-black.html)

Daniel R 02-17-2014 03:38 PM

Why Are Black Holes Black
 
OK, please bear with me on this one. I noticed on the last post regarding light-speed etc. that there are actually a couple of guys on here that seem to get Relativity. It is to them that I am pitching this one.

If we imagine a bright object (say a star) that is trapped in the orbit of a black hole and slowly falling towards the event horizon and we are distant observers watching all of this... Would we not start to see time slow down for the star as it gets ever so closer to the event horizon? The change in time for us as observers would surely look like the star is approaching an asymptote since the passage of time of the star at the event horizon which we observe from a distance would stop altogether.

The natural conclusion I come to is that a "Black Hole" should in fact have a super-bright ring around it as we would see everything it ever swallowed in its entire existence due to time stopping at the event horizon for a distant observer. The objects being swallowed themselves would notice a stop in time of everything OUTSIDE the event horizon, including us, but we would see time stop for them at the event horizon.

Sorry to be long-winded, but I just don't get why a black hole should not be bright around the edge.

Anyone who sort of understands me, please correct my wrong hypothesis.

pothole 02-17-2014 03:44 PM

If time truly stood still at the event horizon, any light would be stationary, since speed is distance travelled over time. Hence light would not propagate and you wouldn't see it. Indeed you wouldn't 'see' anything at all at the event horizon. Which is indeed what appears to be the case.

Slate 01 02-17-2014 03:47 PM

So you are proposing a designation of Hot Pink Hole instead.

Steven Hawking just came out questioning the whole Black Hole, er, Hot Pink Hole theory

coreseller 02-17-2014 03:52 PM

You guys collectively get into the ganja again? Maybe Stephen Hawking hooked up with Oprah?

Daniel R 02-17-2014 04:02 PM

Quote:

Originally Posted by pothole (Post 387173)
If time truly stood still at the event horizon, any light would be stationary, since speed is distance travelled over time. Hence light would not propagate and you wouldn't see it. Indeed you wouldn't 'see' anything at all at the event horizon. Which is indeed what appears to be the case.

I think you nailed it. Yes, that makes perfect sense.

golonaus 02-17-2014 04:03 PM

Black hole is a star. Star so huge that its gravity traps the light

but shouldn't we discuss such a thing in different part of this forum. This is general 986 info
lets keep this clean
Posts like this are ruining perfectly good forum. No offence tho

Johnny Danger 02-17-2014 04:19 PM

I thought a black hole was a term used to describe Obama's presidency ?

Timco 02-17-2014 04:20 PM

Increase power to maximum......we're going through!!!!

Johnny Danger 02-17-2014 04:21 PM

Quote:

Originally Posted by coreseller (Post 387178)
You guys collectively get into the ganja again? Maybe Stephen Hawking hooked up with Oprah?

That would explain the part about no light getting in.

Slate 01 02-17-2014 04:31 PM

Quote:

Originally Posted by Johnny Danger (Post 387182)
I thought a black hole was a term used to describe Obama's presidency ?

You mean black a-hole

coreseller 02-17-2014 04:36 PM

<iframe width="640" height="360" src="//www.youtube.com/embed/ZvAsvLjEdIo?feature=player_detailpage" frameborder="0" allowfullscreen></iframe>

coreseller 02-17-2014 04:37 PM

http://i46.photobucket.com/albums/f1...ps128c97da.gif

The Radium King 02-17-2014 04:48 PM

uh ... light can't stand still - that's the premise of special rel - it goes at c regardless of frame of reference. that's why time slows - to make d= st work. it's the whole "what happens when i'm traveling at the speed of light and turn on my headlights" thing, just rephrased.

jdlmodelt 02-17-2014 05:20 PM

Quote:

Originally Posted by Daniel R (Post 387171)
OK, please bear with me on this one. I noticed on the last post regarding light-speed etc. that there are actually a couple of guys on here that seem to get Relativity. It is to them that I am pitching this one.

If we imagine a bright object (say a star) that is trapped in the orbit of a black hole and slowly falling towards the event horizon and we are distant observers watching all of this... Would we not start to see time slow down for the star as it gets ever so closer to the event horizon? The change in time for us as observers would surely look like the star is approaching an asymptote since the passage of time of the star at the event horizon which we observe from a distance would stop altogether.

The natural conclusion I come to is that a "Black Hole" should in fact have a super-bright ring around it as we would see everything it ever swallowed in its entire existence due to time stopping at the event horizon for a distant observer. The objects being swallowed themselves would notice a stop in time of everything OUTSIDE the event horizon, including us, but we would see time stop for them at the event horizon.

Sorry to be long-winded, but I just don't get why a black hole should not be bright around the edge.

Anyone who sort of understands me, please correct my wrong hypothesis.

Perhaps that event only lasts a fraction of a second when light speed is constant then overcome by the black hole?

BIGJake111 02-17-2014 05:36 PM

Quote:

Originally Posted by Daniel R (Post 387171)
OK, please bear with me on this one. I noticed on the last post regarding light-speed etc. that there are actually a couple of guys on here that seem to get Relativity. It is to them that I am pitching this one.

If we imagine a bright object (say a star) that is trapped in the orbit of a black hole and slowly falling towards the event horizon and we are distant observers watching all of this... Would we not start to see time slow down for the star as it gets ever so closer to the event horizon? The change in time for us as observers would surely look like the star is approaching an asymptote since the passage of time of the star at the event horizon which we observe from a distance would stop altogether.

The natural conclusion I come to is that a "Black Hole" should in fact have a super-bright ring around it as we would see everything it ever swallowed in its entire existence due to time stopping at the event horizon for a distant observer. The objects being swallowed themselves would notice a stop in time of everything OUTSIDE the event horizon, including us, but we would see time stop for them at the event horizon.

Sorry to be long-winded, but I just don't get why a black hole should not be bright around the edge.

Anyone who sort of understands me, please correct my wrong hypothesis.

while i am 16, i follow this and it makes complete sense to me. technically there should be a ring around black holes.

jb92563 02-17-2014 08:38 PM

Quote:

Originally Posted by coreseller (Post 387188)

OMG this hilarious.

I think this is the solution for all the starving Hollywood wanabe's

A people black hole that sucks in all the proto stars.

I guess it will draw in Corvette museums as well :eek:

pothole 02-18-2014 03:43 PM

Quote:

Originally Posted by The Radium King (Post 387190)
uh ... light can't stand still - that's the premise of special rel - it goes at c regardless of frame of reference. that's why time slows - to make d= st work. it's the whole "what happens when i'm traveling at the speed of light and turn on my headlights" thing, just rephrased.


Yes, except that breaks down in a hypothetical scenario where time is standing still.

Think the reality is that time doesn't stand still and nor does light. But if time did stand still light simply has no velocity since velocity is distanced travelled over time and in that scenario there is no time.

The Radium King 02-18-2014 03:52 PM

the better argument might be that the process that creates the light (fusion) slows as time slows.

epapp 02-19-2014 11:51 AM

Or we could all just drive our cars before the black holes get us


All times are GMT -8. The time now is 04:08 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2025 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website