Regarding the theoretical issue of temperature , I will talk about the importance of temperature 2

First of all, we have to admit that there is a considerable gap between the measurement error of the human body and that of precision instruments!

Temperature is the macroscopic representation of the irregular thermal movement of a large number of molecules inside an object. The temperature of an object is directly proportional to the sum of the kinetic energy of the thermal motion of the molecules. But be careful to distinguish between "the irregular thermal motion of a large number of molecules" and "the actual macroscopic motion of a macroscopic object".

A beam of high-velocity particles", "high speed" refers to the regular speed of motion of all particles, not the high speed of their thermal motion. If you look at the reference frame with the same velocity as the particles, you will find that the speed at which these large numbers of particles move randomly is not sub-light or light.

Also, a hot object may not be able to burn people, which involves the energy contained in the object. It's like scalding with 99 degrees of water that won't hurt you.

In addition, the current laser ** concentrates a large number of photons, uses the high energy density of photons, and combines the largest possible number of particles to kill and destroy.

Temperature is a macroscopic quantity, and it cannot be used to describe microscopic things.

Temperature is right can be described by the average kinetic energy of the movement of particles inside the object, it is the collective performance of all particles, not the individual performance of individual particles, its size is only a reflection of many particles, your particle beam hit, it can be said that there are few to insignificant particles, so people will not react to this particle beam at all!

The book says that temperature is the intensity of the "irregular" movement of particles inside an object. Be sure to pay attention to the word "no rules". When hail, each piece of ice has a high velocity, but is it hot?

Apparently not. The kinetic energy of the whole is to be distinguished from the random kinetic energy of the internal molecules.

If a beam of high-energy particles with a strong enough strength hits you, you won't feel hot, isn't sunlight just a stream of photons! You feel hot because the particles hit you, collide with the molecules in your body, convert its kinetic energy into the kinetic energy of the molecules in your body, and accelerate the irregular movement of the molecules in your body, which is the thermal motion, so you feel hot.

Hehe, why do you feel hot, it's because the nerves in your body conduct such a sensation in your brain.

Besides, have you tried to let the stream of high-energy particles hit your **?

One more thing: even if you try it, let me use a simple analogy, if you drop a drop of boiling water into a basin of cold water, what will happen to this basin of cold water? Hardly, you know!

If you don't understand it yet: a drop of water is like a beam of high-energy particles, and this basin of water is like a pain nerve in your body. In fact, I also ignored the thickness of your **, maybe very thick. o(∩_o...

What exactly is the nature of temperature? In other words, why is there such a difference between the high and low temperatures that we are feeling now? This is due to molecular movement,The more violently the molecular motion collides, the higher the temperature, and the heat causes the movement of the molecules, and the faster, the higher the temperature.

The change in temperature produced by this kind of temperature, with the method we can understand, is that you can do a small experiment, with two iron plate landline will not need any friction, again and again, hit again and again, hit with great force, enough times, with a finger touch, you can obviously feel the temperature of these two iron sheets rising. Friction is naturally more likely to produce this, for example, the brake pads of a car, brake over a certain distance, you can feel it a little with your hands, and you can clearly feel that the temperature is rising without touching itBecause at this time it is converted from kinetic energy to heat, and heat causes the temperature to rise.

The faster the molecular movement, the higher the temperature, so when the molecular movement is basically stagnant, it is the lowest temperature, which is what people call absolute zero, that is, people cannot use any kind of cooling method to lower than this temperature. Because at this time, the molecular movement has stopped, just like a person no matter how slow he runs, when he stands in place, that is the slowest time, it is impossible to be fuller, but there is indeed no upper limit of temperature, that is to say, the more intense the molecular movement, the higher the temperature. This is proportional, but it is not completely proportional as everyone thinks, but it is not limited by the upper limit of temperature, so the temperature of thousands of degrees or even tens of thousands of degrees can come out.

And the reason why the temperature gradually drops is that the movement gradually slows down, is that the process is like a company, the faster some people may get better, the higher the temperature of the people in this room, the slower they run, the lower the temperature of the objectThe heat will continue to be released outward, and the speed of movement between the molecules will gradually decrease, colliding and increasing, and the mildness will become lower and lower.

The essence of temperature is actually a state of expression in the motion of an object; Temperature is generated by the thermal motion of the molecules of the object, and if the thermal motion of the molecules is more intense, the temperature of the object will be higher.

The essence is the embodiment and quantification of thermal energy. This is due to the continuous development and transformation of energy, which is why temperature appears.

In fact, when I wrote "Why Increase Temperature" yesterday, I still had a lot of principles that I didn't think through, but yesterday afternoon, I talked to two friends and made me think a lot about temperature.

Why do we want to raise the temperature? It's like this new coronavirus, which is being advertised on TV, books, and mobile phones, so that we must eat cooked food. Why eat cooked food, is it because the temperature kills a lot of bacteria?

The same is true in our body, the temperature of our human body of 37 degrees is equivalent to the temperature of boiling water for more than 100 degrees, and when the temperature of the human body reaches 37 degrees, it can kill a lot of bacteria and viruses in our body.

And why are there so many toxins in our bodies? What are these toxins? They are not oils, all kinds of things that cannot be metabolized, necrotic cells, etc.

Let's talk about oil first, I don't know if you have seen boiling lard, does it need a certain temperature, when the temperature is not enough, it is difficult to boil the lard out, when the temperature is too high, the lard is out quickly, but it is all scorched. Then our body is not the same, when the temperature is low, it is difficult for oil to go out, so people are easy to gain weight.

Let's talk about all kinds of things that can't be metabolized: then why are there things that can't be metabolized, and what does it have to do with our temperature? I don't know if you have ever eaten steak, very cooked steak is easy to chew, medium rare steak is called chewy, how can there be chewy, it is not easy to stir.

Therefore, if we eat a lot of food in the body and the temperature is not enough, it is not easy to decompose the food, which will only let the food stay in the body and become garbage, which will only cause harm to the body and produce more toxins.

What does necrotic cells have to do with temperature? I haven't connected this with the things in my life, and the above two are just my own thoughts. But I know that temperature is really important to the body.

0 = So, at temperature t, t = t+

At a temperature of 2t, the thermodynamic temperature = 2t + unless there is a special case of t = 0).

The length of one degree of the two temperature scales is the same, but the position of the temperature scale 0 point is different, and the scale of the difference is different.

The Celsius temperature scale is increased by n scales, and with the Kelvin temperature scale, the increase is also n scales. Not a 2x relationship.

Celsius and Kelvin "unit length" are the same, so one degree Celsius is 1 Kelvin when converting temperature differences.

Celsius and Kelvin are a one-time function: t=t+

The definition of temperature requires an understanding of an important physics concept: the state of thermal equilibrium. If this concept is not clear, then the concept of temperature is even more difficult to understand!

Many books will say that temperature is a reflection of the average kinetic energy of a particle. This statement actually does not stand up to scrutiny! If "temperature is a reflection of the average kinetic energy of the particle", then if the average kinetic energy of the particle system is zero, then the temperature of the system must be zero – absolute zero.

However, for solids, the particles are basically bound, and the average kinetic energy is basically small, but the leakage temperature of the solid is not close to absolute zero!

This shows that there is something wrong with the statement "temperature is a reflection of the average kinetic energy of particles". In fact, this sentence should be said to mean that "temperature is the reflection of the average kinetic energy of ideal gas particles in thermal equilibrium". For an ideal gas in thermal equilibrium, the temperature can be directly related to the average kinetic energy of the gas molecules in a very simple way

t=ke, k is a constant independent of kinetic energy.

This relation simply does not apply to liquids and solids! There must be particle potential energy in solids and liquids, so this part of the temperature cannot be ignored!

How do you define temperature, especially material-independent? It's actually quite simple, it takes two things: an ideal gas and the zeroth law of thermodynamics.

The relationship between the average kinetic energy and temperature of an ideal gas is simple, so the temperature can be calibrated with an ideal gas, while the zeroth law of thermodynamics can generalize the definition of temperature to any substance.

However, it should be noted that the whole process requires a state of thermal equilibrium, without which the definition of temperature is not valid.

With a definition of temperature, it is possible to explain the phenomenon of "cooling" and "heating". The fact that the water becomes cold or hot is actually the result of energy exchange and material transport.

When the water becomes hot, it means that the water absorbs heat from the outside world or receives a heat flow, which can be explained in a dual way.