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/sci/ - Science & Math

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4801646 No.4801646 [Reply] [Original]

Why can't we get to absolute zero?

>> No.4801651
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4801651

bump

>> No.4801652

Because heat will radiate into the area through the walls, no matter how well insulated it is. It's one of those diminishing returns things I think. But don't listen to me at all of course, I'm no scientist.

>> No.4801665

Because our understanding of physics doesnt allow it. That and we dont have a tool to completely localize a given space

>> No.4801687

heat death of the universe takes too long to wait for

>> No.4801690

GET ABSOLUTE ZERO

REVERSE BLACK HOLE

AND ALL LIFE

>> No.4801698

Don't listen to the disinfo agents ITT, OP.

>> No.4801710

>>4801646
because energy is quantised

>> No.4801712

Because the temperature scale is inverted. The real scale should've been 1/T. We can easily have negative and infinite temperatures (in kelvin).

>> No.4801717

>>4801712
>>Because the temperature scale is inverted. The real scale should've been 1/T.
People can use that -- what's holding them back?

>>We can easily have negative and infinite temperatures (in kelvin).

Bullshit. You can easily WRITE about them. You can't actually have them any more easily than 0 K.

>> No.4801719

>>4801646
Heat energy transfers to all nearby matter.
it also doesn't dissipate easily.

So, how do you get something to be colder and also separated from all other stuff?
keep in mind the stuff we are around isn't anywhere near 'cold' in the first place, so there is a lot of heat to discard.

It has also been done, by the way -- 1995-ish?
Carl Weiman et al?

>> No.4801720 [DELETED] 

<span class="math">(∂S/∂U)_N_V ≝ 1/T[/spoiler]
you can't have infinite change in entropy with infinitesimal change in energy

>> No.4801724

<span class="math">(∂S/∂U)_{NV} ≝ 1/T[/spoiler]
you can't have infinite change in entropy with infinitesimal change in energy

>> No.4801743

>>4801719
No, but there have been ways found to get within a few thousandths of a Kelvin to absolute 0, but going all the way to -0 is impossible.

>> No.4801773

>>4801743
Well, they got the phase change and B-E condensate, that's pretty good.

What was it, something like -.000003 degrees?
(vague recollection, not checked)

>> No.4801833
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4801833

If we can utilize the energy from our emotions, we can reverse the entrophy and heat death. The amount of emotions put into making a baby is overturned by the amount of energy the child gives off during their entire life.

>> No.4801840

>>4801833
lolwut

>> No.4801848

>>4801840
We can generate a near infinite amount of emotion in our lifetime. The emotion needed to create us is far less. Thus if we can harness the emotions, we can effectively use it to reverse entropy or stop it.

>> No.4801855

>>4801848
>near infinite>near infinite>near infinite>near infinite>near infinite>near infinite>near infinite>near infinite>near infinite>near infinite>near infinite>near infinite>near infinite>near infinite>near infinite>near infinite>near infinite>near infinite>near infinite>near infinite>near infinite>near infinite>near infinite

>> No.4801872

If a particle stopped moving (having reached absolute zero) we would have its momentum (zero) and its position, within a relatively small error. However, according to the uncertainty principle, this error should be large, in fact, infinitely so. Thus a particle must always be moving.