Why don’t the physicists want to recognize a important simple fact?

Question

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Everyone knows, that absolute temperature T=0K
cannot be reached. But is it enough reason to think
that space T=0K doesn’t exist?
The birds communicate with songs.
If I cannot understand songs of birds does it mean
that they cannot exchange information with songs?
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Answer 1

No one disputes that birds communicate with song and where you got that idea I do not know. Communication IS exchanging information.

As for your first supposition. It's impossible to prove a negative.

Answer 2

With good cryogenic technique, it is possible to get ever closer to absolute zero. Current laboratory experiments get within a tiny fraction of 1 degree, and there is every reason to expect that even smaller temperatures can be achieved. It might even be possible to achieve 0 K over a small volume with a finite number of partilces for some period of time. So what's the problem?

Space, or the vacuum, has positive energy even in a perfect vacuum. This is because any volume in our Universe contains the fields of the various particles that mediate the fundamental forces (gravity, strong, weak, electromagnetic). Quantum mechanics tells us that these fields have no zero-energy state, and that virtual particles are always popping in and out of existence. This is only understood in an approximate way at the present time, and is an active subject of research.

Answer 3

If you are saying that 0 degrees Kelvin exists in space, you are not correct. Space is full of the cosmic background radiation which is a bit under 3 degrees K. Nothingcan get much cooler than that.

Answer 4

I think you are mistaking the scientist's confidence in their facts. Stephen Jay Gould said it best:
In science, "fact" can only mean "confirmed to such a degree that it would be perverse to withhold provisional assent." I suppose that apples might start to rise tomorrow, but the possibility does not merit equal time in physics classrooms.

So there might be some space somewhere of 0 K, but until we find it, we will continue to assume there is not.

Answer 5

If a tree falls in the forest but no one's around is vibration still produced? Sure. But a temperature of 0 Kelvin requires a perfect vacuum, which is just a theoretical idea, not a physical possibility. Though not uniform there is energy in every measurable portion of the universe....photons, neutrinos, gravitons (or their equivalent), and even 'vacuum' itself is a form of energy.

Answer 6

That question has nothing to do with astronomy or space.

Answer 7

How embarrassing for you.

Answer 8

Yes!
No!
No!