voices
Psion
The cake is a lie
Posts: 21
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Post by voices on Apr 2, 2007 16:30:46 GMT -5
when you use pyrokinesis you draw heat together into an area/object. but when you use cryokinesis you remove heat (thermokinesis is when you can both add and remove heat). this is based on the fact that cold doesnt exist and that heat is energy and thus cant be created or destroyed.
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stolide
Professional Psion
Real Eyes Realize Real Lies...
Posts: 598
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Post by stolide on Apr 2, 2007 16:56:48 GMT -5
"heat is energy and thus cant be created or destroyed."
This is not nessecarilly true. Quantum theory clearly states that energy is both created and destroyed all the time. Just, over long periods of time the equal no net change.
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Post by JediKaren on Apr 2, 2007 17:06:44 GMT -5
umm ok...strange thread...
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zbuksi
Experienced Psion
I am not here
Posts: 341
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Post by zbuksi on Apr 2, 2007 19:14:19 GMT -5
Not true. YOu can't take the heat. When you make somethin hot you accelerate atomes/particles and it makes movement; dynamic energy;friction between particles;heat. When you slow down movements of the particles it looses dynamic energ and turns in static/potential energy, and with no motion, there is no friction and there is no heat. SO basicaly you just take away energy of moving particles or use your energy to 'hit the brakes'. And when speeding them up you're adding your energy to mage them go fast and make more friction to make heat. And energy cannot be destroyed, it only changes it's form.
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voices
Psion
The cake is a lie
Posts: 21
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Post by voices on Apr 4, 2007 16:02:16 GMT -5
My physics/astronomy teacher told us that heat is in a limited quantity. when you heat something up it draws heat from the space around it, and when you cool something you draw the heat away. if you put your hand on the back of a fridge you can feel the heat that was drawn out of the interior.
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stolide
Professional Psion
Real Eyes Realize Real Lies...
Posts: 598
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Post by stolide on Apr 4, 2007 16:24:17 GMT -5
"My physics/astronomy teacher told us that heat is in a limited quantity. when you heat something up it draws heat from the space around it, and when you cool something you draw the heat away."
Sounds like you need a new physics teacher. And zbuksi is right.
"if you put your hand on the back of a fridge you can feel the heat that was drawn out of the interior."
Wrong. A fridge has an air pump which pumps the air inside through a cold pipe( usualy kept cold with freon) The pipes atoms are moving slowly, and cause the atoms near by to slow down also. This causes the air in the pipe to become cold (the atoms are moving slowly). The air pump the pumps the air back into the fridge, and takes in a new batch of air.
When the freon starts the freon makes the pipe colder, it molecules speed up. when the freon starts to get warmer, it is pumped to the back of the refigerator. You are feeling the hot compressed freon vapor. The freon is currently not very dense and the molecules are moving quickly. Then the freon is compressed. This slows down the molecules and it gets colder. Now that the freon is cold again, it is pumped through coils around the pipe cooling down the pipe again.
I'm sorry but, it's not drawing away the heat.
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Sentinel
Psion
"Minister of Misinformation"
Posts: 32
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Post by Sentinel on Apr 4, 2007 20:04:24 GMT -5
heat is energy and thus cant be created or destroyed. This is not nessecarilly true. Quantum theory clearly states that energy is both created and destroyed all the time. Just, over long periods of time the equal no net change. Where'd you hear that? Last I knew physics was still adamant that energy could neither be created or destroyed. As far as I know - cold exists, it's just the lack of heat. Sort of like darkness is the absence of light. It is not saying that it does not exist, it is merely that one is the absence of the other. As far as there being a finite amount of heat - that is not quite true. There is a somewhat finite amount of energy, if you want to look at it that way, for it cannot be created or destroyed. But at the same time - if you warm something up it isn't necessarily absorbing the heat and removing it from the area around it. Heat radiates from a source, so if you have a fire and you are warming yourself by it, you are having the fire from the source radiate the heat into you - the fire does not get cooler as a result of this interaction. If you are taking heat from, say, a metal pipe and warming yourself with it, the heat will gradually leave the pipe because the pipe is a good conductor. But that gets into something else entirely.
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stolide
Professional Psion
Real Eyes Realize Real Lies...
Posts: 598
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Post by stolide on Apr 5, 2007 6:56:59 GMT -5
In normal physics, that is true(First law of thermodynamics: Energy can not be created and destroyed, it changes form) But on a subatomic level (quantum mechanics) This is beleived to be false.
If that were true, orbiting electrons would collapse onto the nucleus of their atoms. We know this doesn't happen. Also electrons can be at more than one place at once. Since matter can be converted to energy, you could not create matter because that would create energy. It is also possible for the "Clone Electrons" or the original, to dissapear. This would be destroying matter (which again is energy) thus would break the laws of thermodynamics.
Thermodynamics is belevied to apply to very large scale things though, such as galaxies, and solar systems. If there wasn't dark matter/energy then the moon, instead of getter farther away from earth with each orbit, would be coming closer. The moon would eventually crash into earth, and earth inturn into the sun.
Dark matter/energy is a repelling force that is pushing the universe apart, and preventing it from collapsing in on itself.
So in normal interactions of objects and forces, energy cannot be created or destroyed. But many strange phenomenon(can't spell it sorry) can be explained with quantum mechanics.
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zbuksi
Experienced Psion
I am not here
Posts: 341
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Post by zbuksi on Apr 5, 2007 15:04:52 GMT -5
The energy is the same! You do not draw heat in meaning you literary draw it! You take energy of the moving particles and send it to non.moving particles! And when doing pyro you are not ''creating'' heat, you just send energy/psi on particles and force them to move them! As result you have less energy and particles have more! And as far for the dark matter it is something that exist to keep ballance, just like the hot water and cold water mixed together will give something between; the dark matter is lack of energy in positive mater. For some reason the energy is drawn to one place more than the other, and thats why the lack of energy/dark matter is here as response to this. Just like in the batery, electrons are moved by force on one side of battery (-) and on the other side you have lack of electrons (+). one side has potential energy beacose of constant that makes electeons equals (sry for spelling) on the both side. In this case you have the energy forced by something on one side and removed from another, that would be positive and negative matter.
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