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Natural Science Forum / Physics / General Physics / July 2008



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Spacetime in Astronomy

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iiiiililiiliilli - 16 Jul 2008 00:56 GMT
So, I understand that time near a black hole slows down, the whole
twin paradox thing, which for me I equates to, "more mass per space is
a slower time frame" and the reverse, "less mass per space is a faster
time frame".

I picture the galaxies a few eons ago,

b
M                               D
a

with our Milky Way's time frame being "t", having galaxies "a" and "b"
nearby and distant galaxy "D" emits its light to us.

Jump ahead to,

b

M                                                               D

a

and we find the Milky Way area with less mass near it, "less mass per
space", so it's frame becomes a faster time of "t * 1.something", but
the light we are just now receiving form galaxy "D" is from a "SLOW"
time in the universe.

Is this phenomenon accounted for in viewing distance events like
supernovas and gamma bursts? Or is it so small of a difference, that
it is ignored?

Also, slower to faster time frames does not have and affect on color
Doppler shift, right?  Or would the observation of distance (long ago
and slower) events naturally have a red shift due to our now faster -
less mass per space time frame?
Sam Wormley - 16 Jul 2008 04:14 GMT
> So, I understand that time near a black hole slows down, the whole
> twin paradox thing, which for me I equates to, "more mass per space is
[quoted text clipped - 31 lines]
> and slower) events naturally have a red shift due to our now faster -
> less mass per space time frame?

  You need to do the gravitational time dilation calculations to
  answer your question... If you do it yourself you will learn
  something.
Androcles - 16 Jul 2008 08:00 GMT
| So, I understand that time near a black hole slows down

That's just great, now show me a black hole, iiiiililiiliilli.
How do you say your name, anyway?
hhc314@yahoo.com - 18 Jul 2008 01:29 GMT
> | So, I understand that time near a black hole slows down
>
> That's just great, now show me a black hole, iiiiililiiliilli.
> How do you say your name, anyway?

ROFL.  That about hits it on the head!

Harry C.
aamoy - 19 Jul 2008 19:20 GMT
> | So, I understand that time near a black hole slows down
>
> That's just great, now show me a black hole, iiiiililiiliilli.
> How do you say your name, anyway?

My original post was not to debate the existence of black hole, I will
let you argue that with SPACE.COM.  I also did not think that a
handles needed to be pronounceable, but if you need, most say
'barcode'.

My question is to the time distortion due to gravity, coupled with the
difference of a present time frame viewing older photons emitted back
when everything was closer together.
Spaceman - 19 Jul 2008 19:35 GMT
> My question is to the time distortion due to gravity, coupled with the
> difference of a present time frame viewing older photons emitted back
> when everything was closer together.

Science uses single standards for measurement systems.
The variable time bullshit is not even in science.

Hint: the clock malfunctioned.
You have lost science if you do not understand such a simple
fact about clocks.
:)

Signature

James M Driscoll Jr
Spaceman

Androcles - 19 Jul 2008 20:27 GMT
On Jul 16, 2:00?am, "Androcles" <Headmas...@Hogwarts.physics> wrote:
> "iiiiililiiliilli" <iiiiililiilii...@aol.com> wrote in message
>
[quoted text clipped - 3 lines]
> That's just great, now show me a black hole, iiiiililiiliilli.
> How do you say your name, anyway?

My original post was not to debate the existence of black hole, I will
let you argue that with SPACE.COM.  I also did not think that a
handles needed to be pronounceable, but if you need, most say
'barcode'.

My question is to the time distortion due to gravity, coupled with the
difference of a present time frame viewing older photons emitted back
when everything was closer together.
==============================================

So you assume the existence of black holes.

So you assume the existence of  time distortion due to gravity.

So you assume the existence of  a Big Bang.
Do you also assume that bright green flying elephants lay
their eggs in black holes as my THEORY says?
If so, look in a black hole for me and bring me out some
broken eggshell left behind by hatchlings, it would help me
prove my theory; then lock yourself up in the looney bin.
If not, lock me up in the lunatic asylum, I must be crazy
to make absurd assumptions.
Since I'm quite sane and wish to remain that way, I'll
leave you to your own "understanding". Oh, and wipe the
drool off your lip, it looks disgusting.
 
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