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| Thread ID: 47566 | 2004-07-30 04:52:00 | Too cold for a computer??? | kewefella (2092) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 1357130 | 2004-07-30 14:41:00 | > Would there be a slight exchange occurring here between relative and absolute humidity ? > From memory, the dew point occurs when relative humidity reaches 100%, and can occur at > any temperature between 0 and 100 deg. C dependent on the absolute humidity. Why should > the metal be No. It's RH. The warmer the temperature the more water vapour air can hold before it reaches saturation (saturated vapour pressure, 100%). for eg, water at 20C and 80% RH will condense out when it hits a surface at 16.5C and below, dew point. It needs the colder surface to trigger the dew point, if it didn't have that surface and water was condensing you would be one step away from precipitation which is as you say 100% saturated air at any temperature, the lower the temperature though, less water molecules per volume of air is required to reach this point. Generally in a room the water in the air will be warmer due to its source, cooking heating and humans which are introduced to the room. Yes, eventually it will stabalise (almost) as as all the gases in the air including water vapour are doing and everything in the universe is doing or attempting to do except...... Cheers Murray P |
Murray P (44) | ||
| 1357131 | 2004-07-30 16:33:00 | I don't know how relevant it is to PCs but aren't computer centers for mainframes and super computers always air conditioned and humidity controlled? Vince | Vince (406) | ||
| 1357132 | 2004-07-31 00:12:00 | > if it didn't have that surface and water was condensing you would be >one step away from precipitation . . . . > And the difference between condensing and precipitation is ? ? ;) By the way, entropy has a special section just for windows:- energy is absorbed with no useful output, but decay continues . (I must get out more) R2 |
R2x1 (4628) | ||
| 1357133 | 2004-07-31 01:19:00 | > And the difference between condensing and precipitation is ? ? Codensation is what you produce from your mouth on a cold day if you have a need to breathe or the fluffy things in the sky . Precipitation is the wet stuff that comes out of the fluffy things in the sky ;) When lots of wet stuff falls out of the fluffy things in the sky it is commonly called "pissing down" not to be confused with, "getting pissed", "taking a piss" or "taking the piss" although they are all wet activities and especially so if the events are carried out contemporaneously :D Cheers Murray ;P |
Murray P (44) | ||
| 1357134 | 2004-07-31 10:33:00 | > Temperature can never be too low, absolute zero would > be ideal:) It might just be my crappy 6th form knowledge of physics but if the CPU was at absolute zero (zero kelvin?) then wouldn't that mean there was no energy and the transisters wouldn't work (no kinetic/electrical energy to switch off/on) *shrug* just a thought, i think i read somewhere ages ago that if they got radioactive stuff like plutonium then it would conduct elections at absolute zero... now who would need a turbine fan system then! - David |
DangerousDave (697) | ||
| 1357135 | 2004-07-31 10:42:00 | I would say it gets its energy from the PSU. | kiki (762) | ||
| 1357136 | 2004-07-31 10:45:00 | I had the same problem's a few years ago on a brand new pc, shop replace PSU, didn't help, replaced ram still no good, replaced M/B problem fixed, but realistically it could be anything. Good luck with this one!! |
The ResinMaster (3820) | ||
| 1357137 | 2004-07-31 11:28:00 | Quite right Dave, I was being tongue in cheek with absolute zero. Electrons in a semiconductor would not have the energy to cross from the valence band to the conduction band. My physics is very rusty though, I have this vague memory of zero point energy. | Terry Porritt (14) | ||
| 1357138 | 2004-07-31 11:39:00 | I had a hard drive that was temperature sensitive. It wouldn't run on cold days. Older computer technicians may remember having to laterally twist hard drives a few times to start them if they were a bit sticky. I have seen many temperature sensitive faults in electronics in general, both cold and hot temperatures inducing failures of one type or another. | zqwerty (97) | ||
| 1357139 | 2004-07-31 16:57:00 | I have this vague memory of zero point > energy . > Zero point energy is the energy of pure vacuum . Look under Astrophysics or Quantum Physics . I don't think anyone has thought up way to utilize it in computing yet . Vince |
Vince (406) | ||
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