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Pillars of creation obliterated

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17 years 5 months ago #39996 by JohnMurphy
Replied by JohnMurphy on topic Re: Pillars of creation obliterated

The speed of light equals the speed of time.


Thats one way of putting it, what you really mean is time = rate of change. What is time? Is it just the rate of change? Change in velocity, molecular disintegration, etc. etc. ? If theres no change does time stand still? Tick tock, tick tock..................?
For instance in a black hole at the singularity where the curvature of spacetime is extreme, time ceases to exist (it dilates infinately) which means there is no change. However it could take an eternity to reach the singularity as time progressively dilates. It therfore is obvious that time is relative to the mass that is present in one's locale (remember that space and time are inseperable), and mass affects the curvature (warping) of spacetime. Time is not fixed, one of the only fixtures we can depend on is the speed of light, therefore the speed of light (a constant) does not equal the speed of time (a variable depending on the mass and distance (inverse squared) from). Hope that clarifies it. :lol:

Time is an illusion that we use to make sense of what we see, without a change (in anything) we cannot make any sense of time.

What has happened is happening and will happen.............. :wink:

Clear Skies,
John Murphy
Irish Astronomical Society
Check out My Photos

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17 years 5 months ago #39998 by pmgisme
Replied by pmgisme on topic Re: Pillars of creation obliterated
It's the "Twin Paradox"John.
If you accelerate one twin towards the speed of light they will both age at different rates.
At the speed of light the clock stops altogether.
A photon is frozen in time.
If the sun disappeared now we would feel it's gravity for eight minutes more.

Peter.

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17 years 5 months ago #40046 by JohnMurphy
Replied by JohnMurphy on topic Re: Pillars of creation obliterated
Peter,

What I said still stands. The speed of light is a fixed constant. Time is variable depending on your reference frame. Therefore the speed of light and "speed of time" (whatever that means) cannot equal.

Clear Skies,
John Murphy
Irish Astronomical Society
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17 years 5 months ago #40069 by pmgisme
Replied by pmgisme on topic Re: Pillars of creation obliterated
Of Course.
Mass varys as well as time.
As does length.(Fitzgerald-Lorentz Contraction)
(George FitzGerald was Irish incidentally.)
Strange world.
Richard Feynmann reckoned that a Positron is an Electron going backwards in time! (In his book QED.)
Mind boggling stuff indeed.

Peter.

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17 years 5 months ago #40155 by JohnMurphy
Replied by JohnMurphy on topic Re: Pillars of creation obliterated

Richard Feynmann reckoned that a Positron is an Electron going backwards in time!


As a matter of fact all antiparticles can be said to be their respective particles going backwards in time. Feynman was genius personified, I highly recommend James Gleick's book Genius: The life and science of Richard Feynman.

Clear Skies,
John Murphy
Irish Astronomical Society
Check out My Photos

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17 years 5 months ago #40158 by fguihen
Replied by fguihen on topic Re: Pillars of creation obliterated
so it happened 70000 years ago. what if you invented a machine that allowed you to travel at 70001 - 750000 times the speed of light, would you reach the pillars before the event happened, if you left today?

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