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Absolute Zero
Link | by Tom on 2005-04-26 17:43:37 (edited 2005-04-26 17:43:55)
Is it physically possible for it to exist? If there exists a space with no energy, wouldn't every part around it have to be 0 degrees kalvin also? So , if it ever did/does exist, there would be a total of 0 energy in the known universe.Depending on your definition of time, or the definition of the CONCEPT of time, it may be possible to freeze time(as i put it, the absolute stopping of all movement, processes, and physics) If it was created. My friend told me that the closest they have gotten to 0 was a hundreth of a degree. Does anyone know the formula for heat transferring (if their is any), because it seems to me if it involves multiplication or division, a 0 may offset everything around it and drain the energy into nothingness. For example (made up w/ no sense/logic)

((temp of obj 1/density of obj 1) * (temp of obj 2/ density of obj 2))= Temperature after heat transfer over an infinate period of time.

Now, lets try and substitute some number values in

temp 1=30
density 1=5(ppi?) (forgot how it is measured)
temp 2=0
density 2=10(ppi?) (forgot how it is measured)

((30/5) * (0/10))=
(6 * 0)=
0

It would seem that with my example formula, the energy would somehow loose itself to math.
Any input, critisim, add-ons, ass-ons, errors?

Note: I know nothing of what I speak of, I let my fingers do all the typing while my logic section of my brain skips the part that does..think..stuff..)

Re: Absolute Zero
Link | by knyght on 2005-04-26 17:56:28 (edited 2005-04-26 18:06:32)
absolute zero is physicaly posible its been proved in experiments on the boss einstein condensate(fifth state of matter)which is that the atoms of a gas at absolute zero get in phase and ocupy the same space.to do this basically what is needed is a system in which the kinetic energy is so low that at a certain time atleast one atom must be at an absolute zero.
Anyway even if zero abolute is physicaly posible it is imposible to messure it since the messure metods we use increase the energy of the sample, and acording a document i have the smallest temperature ever messured is about .000 000 001k(this doesnt have anything to do with the absolte zero)

Re: Absolute Zero
Link | by Joshua on 2005-04-28 11:47:32
If it were theoretically possible to stop time by reaching absolute zero then how would we know if we had reached it. What if scientist actually did discover it already. We wouldnt know because all time would have stopped. Then we would be in the exact same state for however long it took for the particle to warm up. But if we did freeze in time how could the particle warm up. Wouldnt it be frozen in time as well. Maybe im crazy but ive thought about this before and it always makes me crazy.


Re: Absolute Zero
Link | by EricSoLazy on 2005-04-28 13:13:40
With boss einstein condensate you can slow down the speed of light, and in some cases stop it. Time, light, same thing. Also time stops in the very center of wormholes.. if they exist.

http://www.europhysicsnews.com/full/26/article1/article1.html
there is all the info on that.

WHOOOOOOOOOOOOOOOOOOOOO

Re: Absolute Zero
Link | by bakayasha on 2005-04-28 13:43:00
The formula for heat transfer (in the way I think your getting at it) is

Q=mct

where

Q=heat, in joules
m=I forget ^_^;
c=heat capacity
t=change in tempurature (supposed to be delta t, but I dunno how to make a triangle...:()

The problem with saying that time itself would stop at an absolute zero is that time is not a physical substance, composed of particles and held togeter by some type of ionic bonding. Time, if anything, is just a theory, applied to make our lives easier.

Re: Absolute Zero
Link | by gendou on 2005-04-28 14:11:08
time is not a physical substance, composed of particles and held togeter by some type of ionic bonding. Time, if anything, is just a theory, applied to make our lives easier.

i wish to point out that when you lean about quantum mechanics and you realize that atomic and subatomic particles are just tendencies, themselves.


Re: Absolute Zero
Link | by EricSoLazy on 2005-04-28 19:44:05
Also that tempurature isnt a real thing just a measument of how much kinetic energy that molecules have. And at extreme low levels of energy (tempurature) space-time it could bend and disort in ways we do not know about and a way to expermently test that is with the speed of light.. with high spatial distortion being the only thing to move/slow light. "...is just a theory, applied to make our lives easier." could really discribe everything in science. But time is more concrete than you think.

WHOOOOOOOOOOOOOOOOOOOOO

Re: Absolute Zero
Link | by bakayasha on 2005-04-29 12:57:58
^_^ Thanks for the tip. Grade 11 Physics only gets you so far...

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