How about this for a temperature reading...

Technical Ben · May 13, 2011, 18:44:39

That is colder than Absolute zero! I'll have scientists from around the world wanting to test it. That's if the temperature gradient does not freeze the entire earth first.

Rik · May 13, 2011, 18:45:59

The machine must run awfully slow at that temp, Ben.

pctech · May 13, 2011, 18:47:02

About the same temp as the LHC that I think.

Steve · May 13, 2011, 18:47:13

If your using an Arctic Cooler I'd turn the fan speed down a tad

Technical Ben · May 13, 2011, 18:57:21

Quote from: pctech on May 13, 2011, 18:47:02
About the same temp as the LHC that I think.

It's negative, not positive!

It's a common problem when unlocking my type of CPU. The other programs give correct readings. But something that one is doing with it's maths is, well, wrong.

pctech · May 13, 2011, 20:14:34

That would be correct Ben, it was cooled to about that in order to make the superconducting magnets work better.

sobranie · May 13, 2011, 21:06:12

'Speedfan' gives me the large negative reading too. I choose to ignore it even tho. it's a tad chilly this evening.

Technical Ben · May 13, 2011, 22:58:52

Quote from: pctech on May 13, 2011, 20:14:34
That would be correct Ben, it was cooled to about that in order to make the superconducting magnets work better.

Oh that's fine. I wondered if that is what you meant.

esh · May 14, 2011, 12:52:00

Haha, the semiconductors would experience freeze-out condition and you couldn't have any diode voltage drop! So how are you making that measurement, you must have a magic CPU

I suggest go and making some bose-einstein condensate in the comfort of your own PC chassis!

Technical Ben · May 15, 2011, 00:23:39

A nice big q-bit to program an infinitely fast computer on then hey!?

Gary · May 17, 2011, 11:18:03

Doesn't electricity flow faster through cold wiring, they use huge coils taken down to almost absolute zero and then fire a charge into it and see how long it travels around the coil.

gizmo71 · May 17, 2011, 11:27:17

Quote from: Gary on May 17, 2011, 11:18:03
Doesn't electricity flow faster through cold wiring

IIRC (and indeed if I even had my facts straight when I didn't have to struggle to recall them!) the difference isn't because of the temperature, it's because cold copper is very slightly more dense than warm copper and therefore there are more electrons to carry the current. But I doubt the difference is anything other than tiny - you certainly can't turn copper into a superconductor just by making it very cold.

Gary · May 17, 2011, 11:57:56

Quote from: gizmo71 on May 17, 2011, 11:27:17
IIRC (and indeed if I even had my facts straight when I didn't have to struggle to recall them!) the difference isn't because of the temperature, it's because cold copper is very slightly more dense than warm copper and therefore there are more electrons to carry the current. But I doubt the difference is anything other than tiny - you certainly can't turn copper into a superconductor just by making it very cold.

They do use copper oxides in superconductors, not quite copper I know. Copper still has some resistance at absolute zero but quite a lot less I believe, but not as you say a superconductor.

http://physics.info/condensed-matter/