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New Theories / Re: what is temperature?
« on: 05/12/2024 21:08:29 »
Yes, but that's not what you were doing.
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Physics, Astronomy & Cosmology / Re: How does H20 wear away stone?
« on: 04/12/2024 12:24:41 »
The reason why you seldom see pure water in nature is because... it has rock dissolved in it.
It also dissolves CO2 from the air.
It also dissolves CO2 from the air.
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New Theories / Re: what is temperature?
« on: 29/11/2024 13:50:58 »You are muddling the question of "does this happen?" with the question of "how does this happen?".You can't ask how something happens without concluding that the thing happens.A conclusion isQuotea judgment or decision reached by reasoning.You are confused between conclusion and proposition.
the necessary consequence of two or more propositions taken as premises
The second only makes sense if you already concluded that the answer to the first is yes.
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New Theories / Re: what is temperature?
« on: 29/11/2024 13:48:41 »Not if it's set up to point away from the system's centre of mass.Are you sure that the laser doesn't carry away some of the system's angular momentum?What happens to its angular momentum? Will it be conserved?Yes.
And I didn't need to read the rest of your post.
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New Theories / Re: what is temperature?
« on: 27/11/2024 17:45:43 »I haven't even made any conclusion.
How the system will deplete its internal energy?You can't ask how something happens without concluding that the thing happens.
Are you sure that energy is available to drive a laser?
Are you sure that there will be a change in angular momentum?
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New Theories / Re: what is temperature?
« on: 27/11/2024 11:30:14 »What happens to its angular momentum? Will it be conserved?Yes.
And I didn't need to read the rest of your post.
So, we can work back from that fact.
Thus we deduce that you are wrong somewhere in your argument.
Feel free to find out where.
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New Theories / Re: what is temperature?
« on: 26/11/2024 14:01:06 »Then the next question is what is thermal energy?The same as it was when you started this thread 4 years ago.
What have you learned in the meantime?
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General Science / Re: Can an electron travel a bit in a copper wire for inertia?
« on: 25/11/2024 13:20:47 »
A big stack of batteries can generate lots of power. But it's an expensive way to do it. You need to pay for smelting the zinc.
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General Science / Re: Can an electron travel a bit in a copper wire for inertia?
« on: 24/11/2024 20:25:09 »
If you abruptly stop (or start) charged particles, you get EM radiation.
Theoretically, you could measure that from the system.
Theoretically, you could measure that from the system.
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New Theories / Re: How to raise your IQ, how to achieve higher IQ ? A method to obtain higher IQ
« on: 24/11/2024 12:56:18 »Using the presented method, even a person with a low IQ, let's say IQ 80, can become a genius.Then you should employ it.
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New Theories / Re: what is temperature?
« on: 24/11/2024 11:29:43 »
Rather than posting lots of definitions of temperature, perhaps you should read and understand them.
All of the mystery fades away when you think of it this way.What mystery?
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New Theories / Re: what is temperature?
« on: 23/11/2024 15:50:09 »But how small the subsystem can be while still having defined temperature when isolated?If you isolate some matter and then wait, the equipartition principle will shuffle the energy around until you have an equilibrium.
I dare say Alan knows more about relaxation times than I do.
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New Theories / Re: what is temperature?
« on: 22/11/2024 16:47:33 »The system is not in equilibrium. But the temperature can still be defined and measured.You can't sensibly talk about that tube full of water having "A temperature".
It has at least three. The water at the top is near 100C The water at the bottom is near 0C and there's a range in between.
So, it has many "temperatures".
A thermal camera would make that obvious.
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New Theories / Re: what is temperature?
« on: 21/11/2024 11:06:40 »ChatGPT's answer to my questionWhy are you still asking ChatGPT and wasting bandwidth with it?
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New Theories / Re: what is temperature?
« on: 21/11/2024 11:04:54 »The water at the bottom is not boiling.OK, so we can start with water being boiled. That, by definition, is the temperature at which the liquid and gas phases are at equilibrium at the local external pressure.At equilibrium with what?
It really is at equilibrium.
It is, therefore irrelevant to any discussion of "boiling water".
Why did you mention it?
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New Theories / Re: what is temperature?
« on: 20/11/2024 14:10:51 »OK, so we can start with water being boiled. That, by definition, is the temperature at which the liquid and gas phases are at equilibrium at the local external pressure.Temperature is important if you are looking at things in thermal equilibrium. But if they are not even at equilibrium with themselves, that's not going to work.Temperature in water column of the ocean, or atmospheric air column, or water being boiled are not in equilibrium. But their temperature can be measured.
It really is at equilibrium.
The water column etc have average temperatures.
But the temperature of the bottom is different to that at the top.
So what?
What kind of thermometer is the most accurate to measure the real temperature? What makes it better than the others?It depends, and it depends.
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Just Chat! / Re: Where do I get my confidence to challenge established theories?
« on: 20/11/2024 11:15:24 »It is supposed to be. There's no point in confirming what you already know.Are you familiar with the story of Galileo dropping things from the Tower of Pisa?
He knew from a thought-experiment what the outcome would be...
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New Theories / Re: what is temperature?
« on: 19/11/2024 22:49:14 »Anyway...
Back to the less important matter of reminding HY of stuff he's already been told...
The energy of a moving object like a car isn't thermal energy for two reasons.
1) there's only 1 car and temperature is defined for an ensemble of particles.
2) the various forms of energy within the car (rotation, vibration, translation, electronic, etc) are not all in equilibrium.
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Just Chat! / Re: Where do I get my confidence to challenge established theories?
« on: 19/11/2024 10:53:38 »Things like glyphosate resistance were predicted.Why can't it be both?Because it isn't. We know it happens (fact known to everyone, for ever) and when it happens, we observe changes in DNA codes (fact discovered in my lifetime). But there is (so far) no usefully predictive theory that tells us what to expect when an organism evolves.
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New Theories / Re: what is temperature?
« on: 18/11/2024 22:22:28 »
In what alphabet do you think Mary Magdalen would have spelled her own name?
:-)
How many Saints Catherine was the firework named after?
Anyway...
Back to the less important matter of reminding HY of stuff he's already been told...
If there isn't one- as in this case for example
Temperature is important if you are looking at things in thermal equilibrium. But if they are not even at equilibrium with themselves, that's not going to work.
:-)
How many Saints Catherine was the firework named after?
Anyway...
Back to the less important matter of reminding HY of stuff he's already been told...
How do you define real temperature?The temperature corresponds to the average energy in the various forms available to the system.
If there isn't one- as in this case for example
It depends on how it's measured.then there isn't a real temperature.
Temperature is important if you are looking at things in thermal equilibrium. But if they are not even at equilibrium with themselves, that's not going to work.
How do you measure it?With a thermometer that is at equilibrium with the thing you are measuring, which it can't be if the things is not, in itself, at equilibrium.