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Who steals my points steals... Um...
... Points?
I wanna be a eunuchs developer! Pass me a bread knife!
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Pointless?
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
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Well... I concede your point.
* CALL APOGEE, SAY AARDWOLF
* GCS d--- s-/++ a- C++++ U+++ P- L- E-- W++ N++ o+ K- w+++ O? M-- V? PS+ PE- Y+ PGP t++ 5? X R++ tv-- b+ DI+++ D++ G e++>+++ h--- ++>+++ y+++* Weapons extension: ma- k++ F+2 X
* Never pay more than 20 bucks for a computer game.
* I'm a puny punmaker.
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I see your point and raise you!
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
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OriginalGriff wrote: and raise you! I'm about 190 pounds, do you mind if I raise myself and save your backbone?
* CALL APOGEE, SAY AARDWOLF
* GCS d--- s-/++ a- C++++ U+++ P- L- E-- W++ N++ o+ K- w+++ O? M-- V? PS+ PE- Y+ PGP t++ 5? X R++ tv-- b+ DI+++ D++ G e++>+++ h--- ++>+++ y+++* Weapons extension: ma- k++ F+2 X
* Never pay more than 20 bucks for a computer game.
* I'm a puny punmaker.
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Hey, that's pretty sharp!
I wanna be a eunuchs developer! Pass me a bread knife!
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Can the Hamsters do that then? Please send me 90,000, that'all save me 40 years getting to the next milestone
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For that many, I can do you a special discount price of 899.98!
Let's see that money-grubber Griff beat that price!
I wanna be a eunuchs developer! Pass me a bread knife!
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Yes please I can goto 1000 too.
We are talking Japanese ¥ I assume
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55378008 wrote: We are talking Japanese ¥ I assume Euros, old Chap!
And remember that that cut-purse Griff will quote in pounds sterling!
I wanna be a eunuchs developer! Pass me a bread knife!
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55378008 wrote: I can goto 1000 NOOOOO! goto is evil!!! You should rethink your strategy in OOP.
* CALL APOGEE, SAY AARDWOLF
* GCS d--- s-/++ a- C++++ U+++ P- L- E-- W++ N++ o+ K- w+++ O? M-- V? PS+ PE- Y+ PGP t++ 5? X R++ tv-- b+ DI+++ D++ G e++>+++ h--- ++>+++ y+++* Weapons extension: ma- k++ F+2 X
* Never pay more than 20 bucks for a computer game.
* I'm a puny punmaker.
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Good point.
I didn't even read as far as line 1000, so anything could happen!
I wanna be a eunuchs developer! Pass me a bread knife!
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Mark_Wallace wrote: How does a penny a point sound? Like this: clink clink.
There are two kinds of people in the world: those who can extrapolate from incomplete data.
There are only 10 types of people in the world, those who understand binary and those who don't.
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Some of us are little slower than others. I have been here since the beginning. My member number is below 200 and I have about 13K points. Obviously, it's not a very high priority for me at this point in time.
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Best not to think about the points themselves, but what they can buy you.
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Tonight I experienced, for the first time ever, water exploding in the microwave.
Looked it up on the internet.
There must be fifty videos about it on YouTube alone.
So,,,,,,,,,,,,,,,,,,
The safer way to live is to spend more time on the internet, and look up stuff you never thought about before.
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I never thought about elephants with fish tails, before.
...
Well, I'll be buggered![^]
I wanna be a eunuchs developer! Pass me a bread knife!
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Mark_Wallace wrote: Well, I'll be buggered! That's something I'd not want you to post a picture of - but feel free to enjoy![^]
Ravings en masse^ |
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"The difference between genius and stupidity is that genius has its limits." - Albert Einstein | "If you are searching for perfection in others, then you seek disappointment. If you are seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010 |
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Welcome to your own discover of "superheating" !
I first experienced this years ago - without even a microwave - but a brand new tea kettle on a gas stove.
You can look up all the grisly details you'd find interesting, but the basic requirements for this are heating in a brand new container without any internal flaws (micro-scratches from normal use). With no irregularities, the water reaches it boiling point (not enough reason to boil, by the way) and then, added energy would cause the conversion from liquid-to-gas.
But where ? ? ? ? The microscopic scratches are places that lower the energy required to cross that gas/liquid boundary. Suppose there aren't any?
If the container's "flawless" from the point of view of the heating content, then it will just keep getting hotter, even exceeding it's boiling point at the ambient pressure. Then - you move it or the energy content gets high enough it can jump that barrier.
Once it starts - chain reaction - watch it!
This is not related to microwave heating, in particular, but the way and what we heat things in a microwave oven lends itself to this phenomenon.
Ravings en masse^ |
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"The difference between genius and stupidity is that genius has its limits." - Albert Einstein | "If you are searching for perfection in others, then you seek disappointment. If you are seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010 |
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I experienced it with the heater that serve my whole house, 3 storeys. The valve that should have opened when the water reached 70°C (in order to make it flow through the radiators) jammed, me and my dad were away for less than an hour... we found half of the heater plumbings torn apart and a crapton of water next to the heater building.
* CALL APOGEE, SAY AARDWOLF
* GCS d--- s-/++ a- C++++ U+++ P- L- E-- W++ N++ o+ K- w+++ O? M-- V? PS+ PE- Y+ PGP t++ 5? X R++ tv-- b+ DI+++ D++ G e++>+++ h--- ++>+++ y+++* Weapons extension: ma- k++ F+2 X
* Never pay more than 20 bucks for a computer game.
* I'm a puny punmaker.
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Not (or shouldn't be!) the same thing.
You kept putting energy into the water in your system without any way for it to vent. The water boiled (probably normally, except for the pressure) creating steam. As more heat was added, more steam was created and the pressure above the water kept increasing. Eventually something has to give.
Many moons ago, whilst studying German, one of the textbooks actually had bomb-making instructions (really!) - it was sealing a metal container with water and heating it until it exploded. Alternatively, think of a jammed vent on a pressure cooker (hence why they have a safety plug).
Superheating (in the context we're using) differs in that the container isn't sealed - the liquid exceeds its boiling point but is not constrained by a sealed container. It just doesn't have whats called a nucleation point to begin the phase change in a (comparatively) orderly manner.
Glad you were out !
Ravings en masse^ |
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"The difference between genius and stupidity is that genius has its limits." - Albert Einstein | "If you are searching for perfection in others, then you seek disappointment. If you are seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010 |
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Well, sadly I'm cut off from such time-wasting facilities such as YouTube during the day, so I'll just have to use my imagination, but....
W∴ Balboos wrote: the water reaches it boiling point (not enough reason to boil, by the way)
Why's that then? Presuming we are at normal atmospheric pressure I'm struggling to see what else it would do.
Regards,
Rob Philpott.
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Rob Philpott wrote: Presuming we are at normal atmospheric pressure I'm struggling to see what else it would d First thought for you:
at 100C (212F), what is water's state? Liquid? Gas?
Actually, both - to go from liquid to gas, you need to add an additional >2260 J/g. That energy, then can manifest itself with the body (i.e., water) more than one way.
It can boil, disippating the extra energy.
The water's temperature can increase its temperature, a mere 4.2 J/g per deg C
What to do? What to do?
As it turns out, nature loves producing location of higher and lower potential energy. Sharp point rough things are good at this - very smooth things are schizophrenic about it. If a tiny rough area exist (or, for example, a grain of sand or tea leaf), the reduced potential required to change phase in that area lets the energy be dissipated via liquid->gas, i.e., boiling. In the absence of such a location, the energy does what entropy demands: disperses as much as possible - so the water temperature goes above it's boiling point. It wants to boil - oh so much - but doesn't have a location where it can.
We can lump all such phenomena into a single one: Activation Energy. At certain locations, the activation energy, an excess over that actually needed for the transformation, is lower.
Another example: Mix Hydrogen and Oxygen gases at room temperture. OK - what happens?
If you said 'boom' - you are wrong. Put a spark in the mixture - to get the molecules in that spot above the activation energy - then "boom" - as the chain reaction spreads, the reaction supplying even more activation energy. Alternatively, put a spec of palladium dust in contact with the two gases, even at room temperature: Boom! Its surface lowers the activation energy (messes with the Hydrogen, in particular) and the chain starts.
So - it's not enough to simply have enough. You either need an extra push over that Activation Energy wall or something to lower the wall or . . . . . . . . you just wait.
Ravings en masse^ |
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"The difference between genius and stupidity is that genius has its limits." - Albert Einstein | "If you are searching for perfection in others, then you seek disappointment. If you are seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010 |
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I need to have words with my physics teacher. I remember talk of 'latent heat of vapourisation', and triple points at weird pressures, but nothing of activation energy, and my kettle just boils water rather than blowing it up. Probably a good thing actually.
I remember rumours on TV that microwave ovens could super heat things, such that when you stuck your spoon in, a rather unpleasant burn could result. I like to stick a spoon in everything I microwave, and so far, nothing so my doubts were growing. Perhaps this is related.
Thanks for the lengthy explanation. I will be sure to remove the tray of palladium in my garage off the hydrogen cylinder!
Regards,
Rob Philpott.
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