[PmbPhy]

WHAT?!? It really is expensive, although surely it must be worth it;

That's actually cheap. Someone with my background typically gets $75 per hour. I will someday when I'm not as rusty as I am.

Are you sure people will pay this amount to learn physics?

All you have to do is search online for physics tutors and see what the going rates are and you'll see that they rage from a bottom rate of $30 per hour to $75 per hour.

I might be wrong but usually people learn things which offer good job placements and I don't believe Science offers good job placements.

Where on Earth did you ever get an idea like that?? Do you know that a medical physicist gets up to $200,000 per year?

I mean you could probably learn Website development and get better pay.

Why would I want to do that? Is that what you think physicists do?

Although like I just said, I'm not sure... maybe there are descent paying jobs in Science as well, which I'm not aware of.

There are tons of jobs in science in all fields, especially physics. Science is the basis for almost every thing we do in a particular day.
Read this - https://www.cfa.harvard.edu/hr/postings/

Note the salary range. Posting #16-18 pays over $150,000 per year. Right out of college in 1990 I started at $30,000 per year. That was a lot of money back then. My last job at Polaroid I was making about $90,000 per year.

I'm extremely surprised to hear that you're not aware of the great paying jobs out there for physicists. It's so sad to hear that's what people think.

[~CB]

I might be wrong but usually people learn things which offer good job placements and I don't believe Science offers good job placements.

Where on Earth did you ever get an idea like that?? Do you know that a medical physicist gets up to $200,000 per year?

I mean you could probably learn Website development and get better pay.

Why would I want to do that? Is that what you think physicists do?

Although like I just said, I'm not sure... maybe there are descent paying jobs in Science as well, which I'm not aware of.

There are tons of jobs in science in all fields, especially physics. Science is the basis for almost every thing we do in a particular day.
Read this - https://www.cfa.harvard.edu/hr/postings/

Note the salary range. Posting #16-18 pays over $150,000 per year. Right out of college in 1990 I started at $30,000 per year. That was a lot of money back then. My last job at Polaroid I was making about $90,000 per year.

I'm extremely surprised to hear that you're not aware of the great paying jobs out there for physicists. It's so sad to hear that's what people think.

No, I never said that's what physisct do. All I'm saying is, is that people (With a typical mindset who is not really passionate about Science) will think strategically and rather pay less to learn website development which pays way better.
"Average Total Compensation: $210,865 (ranging from $80K to $630K)

Average Salary: $149,740 (ranging from $80K to $222K)

Average Cash Bonus: $32,008 (ranging from  $25 to $80K)

Average Stock Bonus: $49,315 (ranging from $50 to $300K)"
...And It's way easier to learn website development.
So that's the reason I was quite surprised to hear that people do pay 30-75$ an hour to learn physics;
 Maybe there are more people, passionate about Science than I expected;
P.S I did not know a medical physicist get's up to 200,000$, that's quite impressive;

[~CB]

Sometimes I feel 'TheBox' really is 'Jccc'. Wonder if that's really the case.

[PmbPhy]

No, I never said that's what physisct do. All I'm saying is, is that people (With a typical mindset who is not really passionate about Science) will think strategically and rather pay less to learn website development which pays way better.

I'm still lost as to why you raised the subject of Web Development.

[evan_au]

because metal expands, I presume heat does repel heat

When studying the behavior of gases under different conditions around 1800, it was discovered that the volume of a gas is proportional to the temperature of the gas (all other things being equal).

So as the temperature rises, the gas molecules will get further apart.

As the temperature rises, the molecules move more rapidly, and apply a greater pressure to the walls of the vessel, increasing the volume.

A physicist would talk about:

• The molecules of the gas getting further apart
  
• ...As the temperature increased
  
• They would not talk about the temperature or heat of an atom, because these are properties of a group of particles.
  
• They would not usually talk about the heat of a gas increasing, but for a given type and quantity of gas, there is a relationship between temperature and heat (if you avoid state transitions like boiling water into steam).
  

Solids and liquids also expand when you increase the temperature, but less dramatically than gases. In these cases, the molecules are almost in contact with each other; they jiggle more as temperature increases. As I understand it, the more vigorous jiggling is able to increase the distance between the molecules, but due to the incompressibility of atoms, they cannot get closer by the same amount. This results in an overall expansion of both solids and liquids.

So, in summary, increasing the the temperature does increase the heat and does cause matter to expand, but I would not say that "heat repels heat".

[alancalverd]

so hot air will just merge with hot air?

Yes, it does.

added - if heat is not a thing, can it be said that heat is a state of matter?

No.