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Avon
Caldari
Black Nova Corp
Band of Brothers
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Posted - 2007.12.10 10:35:00 -
[1]
It might be more fun to take a suit out against Microsoft for not providing protection from this happening.
By not doing so they made it possible for the OS I paid for, from them, to be rendered inoperable by a simple command which is part of that said OS - with no warning.
Eve-Online: The Text Adventure |
Avon
Caldari
Black Nova Corp
Band of Brothers
|
Posted - 2007.12.10 15:59:00 -
[2]
 Originally by: Natalia Survenka
American culture. Isn't it wonderful? 
As oxymorons go, it's a beauty.
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Avon
Caldari
Black Nova Corp
Band of Brothers
|
Posted - 2007.12.11 14:08:00 -
[3]
Edited by: Avon on 11/12/2007 14:08:56
Originally by: Sister Impotentata
If you put it under pressure it will boil at a higher boiling temperature. Add more heat and it will just boil faster, not get hotter.
Note that the OQ didn't say "heat water above 100C" or summat.
Boil water.
Collect steam and put under pressure.
Heat steam.
Heated steam under pressure = water heated > boiling point (because it has already boiled at a lower temperature to produce the steam.)
The guy is right when he suggests superheating the steam. (Unless you are going to argue that steam is not water?)
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Avon
Caldari
Black Nova Corp
Band of Brothers
|
Posted - 2007.12.11 14:22:00 -
[4]
Originally by: duckmonster
Guys guys I'm starting a class action against Al gore for inventing the internet for the psychological trauma of allowing STUPID PEOPLE TO POST STUPID THREADS.
Anyone up for it?
Would you be a witness for the prosecution?
Eve-Online: The Text Adventure |
Avon
Caldari
Black Nova Corp
Band of Brothers
|
Posted - 2007.12.11 16:39:00 -
[5]
Edited by: Avon on 11/12/2007 16:42:15
You can superheat liquid water in a microwave oven.
The water towards the center of the containing vessel can be well above the boiling point of the water around it.
That is why it isn't a good idea to stir a drink with a metal spoon after it has been heated in a microwave. The sudden heat transfer through the metal of the spoon can allow the water in the middle to boil, often causing it to explode out of the container. (Clarification: The superheated water becomes steam, forcefully displacing the now rapidly heating water around it).
If you are dumb enough to try this yourself, I would advise standing well back and throwing the spoon in to the vessel.
Eve-Online: The Text Adventure |
Avon
Caldari
Black Nova Corp
Band of Brothers
|
Posted - 2007.12.11 17:15:00 -
[6]
Edited by: Avon on 11/12/2007 17:15:16
Originally by: Sister Impotentata
Actually the scratches on your well-used metal spoon provide nucleation sites. Likewise this trick works best with a brand new glass bottle and not a used coffee mug. The mug will have scratches that allow the boil to propagate. Good point, misleading explanation.
Anyway I should have been more obvious. I tried to make a nod to the possibility of special cases when I mentioned that the supercooled steam was for the advanced class.
Common misunderstanding.
If the water was 100% pure you might have a case.
What actually causes it is the break down of the insulation (in this case the water around the superheated fluid), as caused by the introduction of a thermal regulator (the spoon).
The superheated liquid attempts to propogate along the regulator, bringing it in to contact with the air.
This allows a sudden pressure change (like opening the end of an inflated balloon). The depressurisation of the superheated liquid turns it to steam, which expands rapidly, edjecting the remaining water from the container.
The change would not be explosive if it was due to nucleation. This would only allow the water to boil, but the pressure of the water around it would still prevent it from becomming steam.
Eve-Online: The Text Adventure |
Avon
Caldari
Black Nova Corp
Band of Brothers
|
Posted - 2007.12.11 18:00:00 -
[7]
Originally by: Sister Impotentata
I'm going to consider this. You haven't sold me on it yet though. I believe the change could still be explosive if due to nucleation on the spoon. Once you have a few bubbles, you get more nucleation off the bubbles. "Then they tell two friends, and they tell two friends..."
Note that Galya mentioned boiling chips. You throw a couple bumpers in a tube of superheated water, you get the same bang. And bumpers definitely work on nucleation, not this thermal propagation technique of which I know nothing, but am looking up.
Try the same experiment using a metal spoon and a wooden spoon.
Both will produce nucleation, but the results are wildly different.
Our conclusion was drawn after a rather stupid experiment using a laser to break down the thermal insulation of the surrounding liquid in a sonoluminescence experiment.
That was damn impressive, but not one I'd care to repeat.
Eve-Online: The Text Adventure |
Avon
Caldari
Black Nova Corp
Band of Brothers
|
Posted - 2007.12.11 18:19:00 -
[8]
Originally by: Rhadamantine
Originally by: Clevermonkey
It is easy for you to sit there like THE VEIN, SELF CENTERED, A**HOLE YOU ARE because you were not effected by this. There are some really angry people out there. I suspect if you were really effected by this calamity you would be talking a different game. I can tell because you only like to hear yourself talk and you don't listen because you are a F***ING M***N. So F***Y** and the horse you rode in on.
Remember, Affect is a Verb and Effect is a Noun.
Effect is physical, affect is emotional.
Eve-Online: The Text Adventure |
Avon
Caldari
Black Nova Corp
Band of Brothers
|
Posted - 2007.12.11 18:34:00 -
[9]
Originally by: Rhadamantine
I was told to remember the difference as above, because it spells R A V E N.
I wonder if my English teacher is dead now. 
It's a good mnemonic, but it isn't accurate.
Affect and Effect both have Verb and Noun usages (although to be fair the noun usage of affect is pretty uncommon).
Maybe the easiest was to think of them is of affect causing a change, and effect being the result.
"The new drug affected a change in his blood-pressure, effectively killing him."
Eve-Online: The Text Adventure |
Avon
Caldari
Black Nova Corp
Band of Brothers
|
Posted - 2007.12.11 18:38:00 -
[10]
Originally by: Fink Angel
If I leave a pen on my desk and it doesn't move, is it stationary or stationery?
It is stationary stationery.
Eve-Online: The Text Adventure |
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