Regions of absolute zero

[Y]

Can light travel through regions of space/matter which are at absolute
zero temperature ?

I would be interested in the behavior of light through a medium that
is close to this temperature.

Motion is not possible in a space which is absolute temperature.

I do know that scientists have achieved close to these temperatures.

Has the behavior of light been observed through such regions ?

Depending on the behavior, we could determine whether or not light
actually moves, or whether it is some other kind of transmission.

-y

[paparios]

Nonsense. In the intergalactic space the density of matter could be as low as one hydrogen atom per cubic kilometer (can you calculate the temperature of that matter?). Far away galaxies are easily seen from Earth observatories.

[paparios]

Correction: It is rather one Hydrogen atom per cubic meter.

[Absolutely Vertical]

On 5/18/2013 8:59 AM, Y wrote:
> Can light travel through regions of space/matter which are at absolute
> zero temperature ?
>
> I would be interested in the behavior of light through a medium that
> is close to this temperature.
>
> Motion is not possible in a space which is absolute temperature.

maybe it would help you to first learn what temperature means.
(it is a feature of a collection of _material_ bodies with kinetic
energy. no collection of material bodies, no temperature.)

good grief, it seems you're trying to do physics based on what you've
seen in comic books.

[space...@gmail.com]

What is a region of No Quantity?
Abstract math.... derivative - zero point for slope

Mitchell Raemsch
Mitchell Raemsch

[xxein]

xxein: This is closely associated to Olber's paradox. Although
various explanations of it differ a lot.

The bottom line is that we can see distant stars. How did that light
get here? This prompts ballistic theories of light. But I cannot go
there. Light is an energy. (Did you ever get a sunburn or
melanoma?) Light follows through energy. That's why it can be
gravitationally bent by energy. We already know that gravity follows
an inverse square law and that it is a mass function rather than a
temperature function. It weakens with distance but never depletes
entirely. So it appears to be an all invasive energy.

Even icy dead comets are subject to this energy (and they have their
own gravity also). So it would be unreasonable to think that light
requires a mass/particle media when it has an energy media.

If I remember this right, Chris Hillman was the one who (back in the
sort of old days) made the early stages of this discussion group into
the present format of 'write or word'. Anyone who remembers something
like that, please reply.

[Y]

On May 19, 5:16 am, Absolutely Vertical <absolutelyverti...@gmail.com>
wrote:

Are you saying either a) That material bodies do not occupy space or
b) at abs zero there is no space between bodies.

You understood the question. You're just being a smarty pants.

-y

[Elmer Wright]

Y wrote:

> Can light travel through regions of space/matter which are at absolute
> zero temperature ?

Empty space temperature makes no sense. Idiot.

[Elmer Wright]

paparios wrote:

> Correction: It is rather one Hydrogen atom per cubic meter.

Idiot. That must be your brain.

[Y]

Yes I know... I meant regions of cooled matter, like Bose Einstein
Condensates.

Since no-one here answered the question, or probably knew the answer,
these condensates do slow light right down.

-y

[Y]

http://www.youtube.com/watch?v=EK6HxdUQm5s

-y

[Absolutely Vertical]

On 5/18/2013 8:19 PM, Y wrote:

>
> Are you saying either a) That material bodies do not occupy space or
> b) at abs zero there is no space between bodies.

no, i'm not saying that at all. please pay attention to it again.

temperature is a property that _only_ pertains to a collection of
material objects. in fact, a large collection.

temperature is just not a property of a single fundamental
materialobject (like an atom) or of a region of no material objects at
all. empty space with no matter in it doesn't _have_ a temperature at
all, let alone absolute zero.

nowhere in that did i say anything about the spacing of material objects.

[Y]

On May 20, 8:00 am, Absolutely Vertical <absolutelyverti...@gmail.com>
wrote:

> On 5/18/2013 8:19 PM, Y wrote:
>
>
>
> > Are you saying either a) That material bodies do not occupy space or
> > b) at abs zero there is no space between bodies.
>
> no, i'm not saying that at all. please pay attention to it again.
>
> temperature is a property that _only_ pertains to a collection of
> material objects. in fact, a large collection.

Wrong again. Your credibility rating just goes down and down.
Individual atoms can be cooled using lasers. It's what they're doing
with quantum computers.

-y

[Y]

Anyway. Light moves. It must 'move', because it can slow down to the
speed of a bicycle when travelling through a Bose Einstein Condensate.
If light could not 'slow', I would be reluctant to say that it moves.

-y

[Absolutely Vertical]

look up what temperature means before you go quoting something you read
in a newspaper.

[Y]

On May 20, 1:59 pm, Absolutely Vertical <absolutelyverti...@gmail.com>

It seems that you need to research this, not me.

-y

[Absolutely Vertical]

hey, i can't make you read anything if you don't want to. if you want to
make up stuff, or interpret what you see in the newspaper, that's up to
you. all it will end up doing is make you look like a pretentious idiot
when you spout these things to people who know better.