Question: What the Hell IS temperature anyway?

[hannan4mitch]

You really want to go into this? You really do?

Well go read a physics text book.

In short, it is measuring the amount of vibrations of atoms in a substance. This vibration becomes smaller in "cold" temperatures and greater in "hot" temperatures.

Not even a physics textbook. Read a 6th or 7th grade science textbook. Seriously.

 

[wkrepelin]

You really want to go into this? You really do?

Well go read a physics text book.

In short, it is measuring the amount of vibrations of atoms in a substance. This vibration becomes smaller in "cold" temperatures and greater in "hot" temperatures.

Not even a physics textbook. Read a 6th or 7th grade science textbook. Seriously.

So, you're saying that it's really very simple?

 

[TheRightToArmBears]

I think it's an arbitrary scale to measure, you know, how hot something is.

If you want to get techincal, I'm fairly sure that the kevlin scale measures the amount of energy transferred into the device. (Hot stuff vibrates faster on an atomic level, and so transferres more energy and at a faster rate.)

Kelvin and Celcius are the same, but Kelvin starts from absolute zero.

 

[Hazzaslagga]

The amount of energy in the air molecules. If there is no energy in the air molecules, and they are at a standstill, that is called 0 kelvin (absolute zero) and nothing can happen at all. There is nowhere that is 0 kelvin. Even in space, there is a small amount of energy.

So, a unit of energy.

What if you stick a bell jar, having had all the air sucked out, in a room that's completely dark (and I mean absolutely zero light getting in, and completely sealed)? Since heat energy can be transferred in three different ways, two of which (convection and conduction) require particles to be present. In a bell jar, no particles are present so the only energy within would be transferred by radiation, the third way. But in a sealed pitch black room, there would be no light, so no heat energy could be transferred by radiation. So surely then, the temperature inside the bell jar would be absolute zero?

no because it would stay at the temp it was put into the room rather than lose all it's energy magically. we've almost gotten to absolute zero but were probably something like 0.00000000001 degrees out.

 

[blalien]

How about this question, Why does "hot" feel "hot?

That's something you make up in your head. Say you burn a bit of your arm. The receptors in that piece of skin will sense extreme heat. The nerves will pass that information to the unconscious part of your brain, which translates the message and sends it to the conscious part. That message is the "hot" feeling.

Yes, but the feeling DOES exist, since I feel it.

Now we're walking into philosophy territory, and I do not want to go there. Maybe just watch The Matrix.

 

[DragonsAteMyMarbles]

snip

I thought the ideal gas equation was pV = nRT - R being the gas constant (8.314 J K-1 mol-1). Are you using standard units there?

EDIT: Hang on, that's number of molecules you're using. Never mind, sorry!

 

[L4hlborg]

You really want to go into this? You really do?

Well go read a physics text book.

In short, it is measuring the amount of vibrations of atoms in a substance. This vibration becomes smaller in "cold" temperatures and greater in "hot" temperatures.

Isn't that called Brownian motion or something?

Nope, Brownian motion is basically the heat movement in liquids, not the whole thing.

 

[Rabid Toilet]

How about this question, Why does "hot" feel "hot?

That's something you make up in your head. Say you burn a bit of your arm. The receptors in that piece of skin will sense extreme heat. The nerves will pass that information to the unconscious part of your brain, which translates the message and sends it to the conscious part. That message is the "hot" feeling.

Yes, but the feeling DOES exist, since I feel it.

Now we're walking into philosophy territory, and I do not want to go there. Maybe just watch The Matrix.

As he said, it's all philosophical. The stove (or whatever) is only "hot" to you. The particles that make it up have a higher collective temperature than your skin does, so it transfers energy to your skin, which your brain perceives as it being "hot". If someone theoretically had a higher skin temperature than the stove, it would feel "cold" to them.

Which is it, "hot" or "cold"? That's up to the person touching it.

 

[DigitalSushi]

You really want to go into this? You really do?

Well go read a physics text book.

In short, it is measuring the amount of vibrations of atoms in a substance. This vibration becomes smaller in "cold" temperatures and greater in "hot" temperatures.

Isn't that called Brownian motion or something?

Nope, Brownian motion is basically the heat movement in liquids, not the whole thing.

Science is annoying, it flirts with me and says "yeah baby, here I am" and then bang, she's all like, ACTUALLY YOU LEFT THE TOILET SEAT UP YOU *****.

I'm sick of her shit, I'm going to kill Science!

 

[Rabid Toilet]

You really want to go into this? You really do?

Well go read a physics text book.

In short, it is measuring the amount of vibrations of atoms in a substance. This vibration becomes smaller in "cold" temperatures and greater in "hot" temperatures.

Isn't that called Brownian motion or something?

Nope, Brownian motion is basically the heat movement in liquids, not the whole thing.

Science is annoying, it flirts with me and says "yeah baby, here I am" and then bang, she's all like, ACTUALLY YOU LEFT THE TOILET SEAT UP YOU *****.

I'm sick of her shit, I'm going to kill Science!

I know what you mean, I remember when I started getting into advanced science classes. Within a few weeks, I learned that everything I "knew" about science was a total lie.

HOW COULD SHE BETRAY ME LIKE THAT?!

 

[DigitalSushi]

You really want to go into this? You really do?

Well go read a physics text book.

In short, it is measuring the amount of vibrations of atoms in a substance. This vibration becomes smaller in "cold" temperatures and greater in "hot" temperatures.

Isn't that called Brownian motion or something?

Nope, Brownian motion is basically the heat movement in liquids, not the whole thing.

Science is annoying, it flirts with me and says "yeah baby, here I am" and then bang, she's all like, ACTUALLY YOU LEFT THE TOILET SEAT UP YOU *****.

I'm sick of her shit, I'm going to kill Science!

I know what you mean, I remember when I started getting into advanced science classes. Within a few weeks, I learned that everything I "knew" about science was a total lie.

HOW COULD SHE BETRAY ME LIKE THAT?!

exactly, lets hunt and kill Science, I mean she keeps going on about how we're just shit, to her we're just toilets if you will ...

.. oh boy.. this is akward

 

[FallenJellyDoughnut]

http://coolcosmos.ipac.caltech.edu/cosmic_classroom/light_lessons/thermal/heat.html

Problem solved.

You really want to go into this? You really do?

Well go read a physics text book.

In short, it is measuring the amount of vibrations of atoms in a substance. This vibration becomes smaller in "cold" temperatures and greater in "hot" temperatures.

Isn't that called Brownian motion or something?

Nope, Brownian motion is basically the heat movement in liquids, not the whole thing.

Science is annoying, it flirts with me and says "yeah baby, here I am" and then bang, she's all like, ACTUALLY YOU LEFT THE TOILET SEAT UP YOU *****.

I'm sick of her shit, I'm going to kill Science!

I know what you mean, I remember when I started getting into advanced science classes. Within a few weeks, I learned that everything I "knew" about science was a total lie.

HOW COULD SHE BETRAY ME LIKE THAT?!

exactly, lets hunt and kill Science, I mean she keeps going on about how we're just shit, to her we're just toilets if you will ...

.. oh boy.. this is akward

Wait a minute, you're all with Science? I'M WITH SCIENCE! THAT LYING *****!

 

[Zap Rowsdower]

Think of this: When water is hot, it boils. When it boils, it moves fast. The faster its particles are moving, the hotter it is.

 

[Lowbreed]

Magic, just like magnets.

Fucking rainbows!

While this is somewhat off topic, please tell me that is a joke group?
They aren't serious are they? A bit like weird al of rap?

Yeah, but your question has been answered pretty extensively so I don't really have to post OT.

 

[Unit420]

I think it's an arbitrary scale to measure, you know, how hot something is.

If you want to get techincal, I'm fairly sure that the kevlin scale measures the amount of energy transferred into the device. (Hot stuff vibrates faster on an atomic level, and so transferres more energy and at a faster rate.)

The Kelvin scale and the Celcius scale are not arbitrary. The celcius scale is based on the freezing and boiling of water. Water is everywhere, relevant to our daily lives. The Kelvin scale is built on the Celcius scale but 0 Kelvin is the absolute zero, as cold is it can physically get.

The Fahrenheit scale is arbitrary. Mr. Fahrenheit made it in the 1700s with 0 being the coldest condition he could make in his lab. 100 was the body temperature of his wife, who was sick during the experiment (historitians also theorize he took the temperature of a cow, which has a higher body temperature than humans)

 

[Hoplon]

You really want to go into this? You really do?

Well go read a physics text book.

In short, it is measuring the amount of vibrations of atoms in a substance. This vibration becomes smaller in "cold" temperatures and greater in "hot" temperatures.

Isn't that called Brownian motion or something?

Nope, Brownian motion is basically the heat movement in liquids, not the whole thing.

Not really, humans have a sense called thermoception, which is detecting changes in temperature, hot or cold.

That's right ladies and germs, humans have a minimum of 9 senses, not 5.

 

[zehydra]

How about this question, Why does "hot" feel "hot?

That's something you make up in your head. Say you burn a bit of your arm. The receptors in that piece of skin will sense extreme heat. The nerves will pass that information to the unconscious part of your brain, which translates the message and sends it to the conscious part. That message is the "hot" feeling.

Yes, but the feeling DOES exist, since I feel it.

Now we're walking into philosophy territory, and I do not want to go there. Maybe just watch The Matrix.

Lol, I'm just messing around, I realize that's an unanswerable question at this point in time.

 

[L4hlborg]

You really want to go into this? You really do?

Well go read a physics text book.

In short, it is measuring the amount of vibrations of atoms in a substance. This vibration becomes smaller in "cold" temperatures and greater in "hot" temperatures.

Isn't that called Brownian motion or something?

Nope, Brownian motion is basically the heat movement in liquids, not the whole thing.

Not really, humans have a sense called thermoception, which is detecting changes in temperature, hot or cold.

That's right ladies and germs, humans have a minimum of 9 senses, not 5.

And how is this related to the definition of Brownian motion? Also, if you are trying correct the answer to the main topic, you might wanna read the question again. It asks what temperature is, not how we feel it.

 

[mooncalf]

Not quite.

The Celcius scale lines up with the Kelvin scale but 1C is equal to 274K.

Different perspective 0 degrees Kelvin = -273 Degrees Celcius.

Silly me, read something wrong.