is it possible to......

[ducatilover]

i was just wondering, is it possible to bring an object or just a single atomic particle to absolute zero? [-273.149c if my 5th form memory serves me right] and if so wont the object or atomic particle be completely stationary? or motionless? [i got bored on the trip to wellington to see the surgeon yesterday] so if anyone here could explain it to me....

and i really want to learn about anti-matter, i'm assuming the only way to store anti-matter would be in an electro-magnetic feild...otherwise it will be in contact with matter and umm yeah we would cease to exist depending on the amount of anti matter ofcourse

[In The Breeze]

way beyond me

[MisterD]

If I can remember back to my degree, then the answer is no. Absolute zero is a calculated minimum extrapolated off the bottom of the graph. I think the lowest that has been acheived in the lab is about -250 celcius.

As for anti-matter, I don't think anything larger than a subatomic particle has ever been created. I know the theory and that it is supposedly what powers the USS Enterprise and all I can say is that it's no wonder Scotty always looked worried.

[ducatilover]

If I can remember back to my degree, then the answer is no. Absolute zero is a calculated minimum extrapolated off the bottom of the graph. I think the lowest that has been acheived in the lab is about -250 celcius.

As for anti-matter, I don't think anything larger than a subatomic particle has ever been created. I know the theory and that it is supposedly what powers the USS Enterprise and all I can say is that it's no wonder Scotty always looked worried.

thanks. ohwell

[enigma51]

In theory yes (Comon sense dicatates this) but according to einstein it will not exist anymore. You see a electron nature is to move around a proton there for causing the "vibration" (if i can recall correctly been a few years) and proton cant realy "live" without a electron (radio active stuff etc) so in practice it will not be possible to stop matter from "vibrating" if you want to know more about these things go to the libary and take out books around physics but not any physics look for atomic physics books

[enigma51]

einstein also said that if you vibrate everthing at the same "sequence" you can break up matter and place it anywhere in the universe!

[ducatilover]

In theory yes (Comon sense dicatates this) but according to einstein it will not exist anymore. You see a electron nature is to move around a proton there for causing the "vibration" (if i can recall correctly been a few years) and proton cant realy "live" without a electron (radio active stuff etc) so in practice it will not be possible to stop matter from "vibrating" if you want to know more about these things go to the libary and take out books around physics but not any physics look for atomic physics books

this was what i was thinking... i was going to do a degree in physics in uni but ummm i kinda didnt manage i left school:spudwhat:

[Ixion]

Yes, to absolute zero, if you had infinite energy to do it with. If you mean by "antimatter", matter with the particles signs reversed (eg negitron instead of proton), then this has been done fleetingly at the sub atomic level. In theory it's possible, but given that even empty sapce is full of sub atomic partices, and antimatter is unlikely to last long. But, in theory ......... Could make a REALLY BIG bang !

[enigma51]

There is some real smart asses on this site

[MisterD]

Introduction to Nuclear Physics Krane 1988.

Unfortunately my copy is in my Dad's loft in the UK.

After getting left behind by the English language thread the other day, I'm happy to be on firmer ground here!

[ducatilover]

Yes, to absolute zero, if you had infinite energy to do it with. If you mean by "antimatter", matter with the particles signs reversed (eg negitron instead of proton), then this has been done fleetingly at the sub atomic level. In theory it's possible, but given that even empty sapce is full of sub atomic partices, and antimatter is unlikely to last long. But, in theory ......... Could make a REALLY BIG bang !

hmmmm infinate energy? but if you were using that energy it wouldnt be possible would it cos doesnt it mean there is zero energy at absolute zero? and doesnt it take energy for particles to bond so it would have to be a single particle on its own? argh

[k14]

Introduction to Nuclear Physics Krane 1988.

Unfortunately my copy is in my Dad's loft in the UK.

After getting left behind by the English language thread the other day, I'm happy to be on firmer ground here!

I think he should be more looking for a quantum physics book as opposed to nuclear.

I believe they have got to within a few tenths of a degree of absolute zero (could be wrong though), but as said before, it requires infinite energy to get to absolute zero so cannot practically be achieved, only theoretically.

[ducatilover]

I think he should be more looking for a quantum physics book as opposed to nuclear.

I believe they have got to within a few tenths of a degree of absolute zero (could be wrong though), but as said before, it requires infinite energy to get to absolute zero so cannot practically be achieved, only theoretically.

thats excatly what my brother told me. i'm really interested in anti-matter though, how is it umm created?

[k14]

thats excatly what my brother told me. i'm really interested in anti-matter though, how is it umm created?

You don't "create" it as such, its just there, like electrons are there too. Antimatter is just the atomic opposite of the normal partical. For instance, the electrons anti-particle (positron) is the same as the electron in all ways (mass etc) except for charge and spin, they are the exact opposite.

I don't totally understand the concept myself. Go to www.wikipedia.com and look there, I'm sure it will explain it pretty well.

[MisterD]

I think he should be more looking for a quantum physics book as opposed to nuclear.

I believe they have got to within a few tenths of a degree of absolute zero (could be wrong though), but as said before, it requires infinite energy to get to absolute zero so cannot practically be achieved, only theoretically.

Quantum mechanics is definitely in the "Advanced" section, I'd recommend working through the basic concepts of nuclear physics before tackling the hard stuff. I've got my QM text book on the shelf at home though....

The problem you have is that electrons owe a lot of their properties to the fact that they are in motion. The theory follows that for tachyons (speed of light particles, not going into the wave/particle duality thing here) it takes a infinite amount of energy to slow them down, whereas baryons (and therefore any object) takes an infinite amount of energy to accelerate them to light speed.

Just looked at wisegeek and they agree with my hazy memory at -250.