Which temperature is closer to zero or closer to 30 degrees that is more likely to age wires?

Near-zero degrees are easy to affect the wires and deteriorate.

Closer to zero degrees and close to 30 degrees, of course, close to zero degrees are more likely to age the wires.

If it is close to 0° and close to 30°, it is actually more likely that the wire should be aged at 30°, which is relatively high.

It should be aging, if it is at a temperature for a long time, the aging speed will be too fast, because the wire also has a service life.

Which temperature is closer to 0 or close to 30 degrees is more likely to age the wire. Of course, it is closer to 0 degrees Celsius, which is more likely to cause the wire to age. Because telecommunications are at too low temperatures, they will age faster.

Generally, when it is close to 0 degrees, the aging effect on the wire is greater, and the harm and damage to the wire are very obvious.

I think it's easier to age wires at temperatures close to 0 degrees Celsius, because thermal expansion and contraction can cause the wires in your home to break.

The easy change at a distance close to zero and close to this temperature is definitely older, because the higher the power, the faster the wire is likely to be convertible.

Of course, it is a temperature of 30 years, which is more prone to aging.

The outer skin of plastic is generally plastic or rubber.

The higher the temperature, the more likely it is to age.

The high temperature bar should be felt, the nature of thermal expansion and contraction.

Hello friends, it should be a high temperature, which is easy to make the wire age.

There will be no difference in the temperature alone, but the temperature difference will have an impact.

Of course, it is close to zero, which makes it easier for the wire to deteriorate.

This should be close to 0 degrees Celsius, so it is easier to age the wire.

1. Electrical knowledge.

1. Rice burger cooking, electric wok cooking.

Electric kettle boiling water is the use of electrical energy into internal energy, which uses heat transfer to cook, cook, and boil water.

2. The exhaust fan (range hood) uses electrical energy to convert into mechanical energy, and uses air convection to transform air.

3. The three-pin plug of the rice cooker, electric wok, and electric kettle should be inserted into the three-hole socket to prevent the occurrence of electrical leakage and electric shock accidents.

4. The microwave oven heats evenly, with high thermal efficiency, hygienic and pollution-free. The heating principle is to use electrical energy to convert electromagnetic energy, and then convert electromagnetic energy into internal energy.

5. The kitchen stove (honeycomb coal stove, liquefied gas stove, coal stove, wood stove) converts chemical energy into internal energy, that is, fuel combustion releases heat.

2. Knowledge of mechanics.

1. The thin blade of the kitchen knife is to reduce the stress area and increase the pressure.

2. The handle of the kitchen knife, the handle of the spatula and the handle of the electric kettle have convex and concave patterns, which makes the contact surface rough and increases the friction.

3. Pour boiling water into the thermos flask, and know the level of water according to the sound. Due to the increase in the amount of water, the length of the air column decreases, the frequency of vibration increases, and the pitch increases.

4. When sharpening the kitchen knife, it is necessary to water continuously, because the friction between the kitchen knife and the stone produces heat to increase the internal energy of the knife, the temperature increases, the hardness of the knife edge becomes smaller, and the knife edge is unfavorable; Watering is the use of heat transfer to reduce the energy in the kitchen knife, reduce the temperature, and not rise to too high.

3. Thermal knowledge.

1. The handles of cooking utensils such as spatulas, soup spoons, colanders, and aluminum pots are made of wood, because wood is a poor conductor of heat, so that it will not be hot during cooking.

2. When filling the thermos flask with boiling water, it can be better kept warm if it is not filled. Because when it is not filled, there is a layer of air at the mouth of the bottle, which is a poor conductor of heat, which can better prevent heat loss.

3. In winter, pour some boiling water from the thermos flask, and when the cork is tightened, you will often see the cork jump immediately. This is because as the boiling water is poured out, some cold air enters, and after the cork is tightened, the cold air entering expands quickly when heated, and the pressure increases, thus pushing the cork open.

4. When boiling water or boiling food, the water vapor sprayed out is more serious than that of hot water or hot soup. This is because when water vapor becomes hot water or hot soup at the same temperature, a large amount of heat (heat of liquefaction) is released.

5. Cooking food is not about the faster the fire. Because the temperature of the water does not change after boiling, even if the fire is increased, the water temperature cannot be increased, and the result can only accelerate the vaporization of the water, so that the water in the pot evaporates and dries, wasting fuel. The correct way is to boil the water in the pot over high heat, and then keep the water boiling over low heat.

6. After boiling, the piping hot eggs are soaked in cold water for a while, which is easy to peel. Because the hot eggshell and the egg white shrink when cold, but they do not shrink to the same degree, so that the two are separated.

1. Thermometer: When the weather is hot, the temperature is high and stretched, and the temperature is low, and it is reduced.

It is mainly determined by the physical properties of mercury.

2. A magnifying glass. When it is focused on the sun, it causes matches and newspapers to reach the ignition point and burn.

In discussion about the unusual movement of the Sun in 2012, the Earth entered the photon belt of the Sun that could cause the seventh magnetic pole to be reversed... Wait a minute.

2012 is not the end, it's just that the earth has entered the photon belt, but at the moment of full entry, we will spend 3 days in 0 degree space, of course, this will kill a lot of people, the magnetic pole is reversed, 3 degrees of space retreats to 0 degrees of space, it is undoubtedly destruction, but it is a new world, there are many, many people will survive in those 3 days, those 3 days, it is the huge chemical changes that occur in the solar system in the photon belt, and the atoms in the human body will also be recombined, ushering in 4 degrees of space, the 5th era. Personal understanding: The Maya is not talking about the end of the world, he clearly wrote that the night of December 21, 2012 is coming, and the dawn of December 22 will not come.

Presumably, the Mayans also live in a space with us, and he naturally can't **4 degrees of space, and there is no day on December 22, but 3 days later, it's almost Christmas, and the day will come!

12 prophecies have recorded that 2012 was an extraordinary year, and the Bible code, push back diagrams, Taiwanese Mayan children, Tibetan monks, and even the transition time from Pisces to Aquarius all show it.

The most real thing is the investigation of NASA in the United States, in 1960, it was found that there is a cluster of stars in the distance (in fact, it is a photon belt), in the past few years, it was found that in 2012 there will be a reversal of the north and south magnetic poles, and in 2011 there will be 4 solar eclipses.

We live at the junction of the 4th and 5th centuries, and we should be proud that what is most needed in the 3rd and 4th degrees is the power of the human spirit, and hopefully, I will survive and witness this moment.

3 days of darkness, the evolution of humanity, the age of light, 4 degrees of space, everything sounds like a science fiction **.

However, it doesn't matter if it's true or not, everything is known in 2012.

If it's true, I'm so grateful to live in this day and age. --It's not scary to die--- but I hope it's true--- after all, the Mayan diary is not finished.

Assuming that the mass of the object is m1, then the gravitational force on the earth is g*m1*m(earth) d 2

The gravitational force on the Moon is g*m1*(10 801)*m(ground) (100 367*d) 2

The difference between college physics, basic physics, and general physics in university courses is from difficulty.

First, look at the difference from the perspective of difficulty.

College physics is a physics course that those non-physics majors need to learn, similar to physics learned in high Chinese classes, which is not very important and very simple.

Basic physics is the foundation of physics that is studied in science schools, and although it is fundamental, it can be difficult to learn. It is also the hardest of the three.

General physics refers to the physics studied in engineering schools, which is relatively simpler.

Second, the difference is made in terms of content.

There are 13 chapters in the University Physics Book, covering mechanics, heat, electromagnetism, vibration and waves, wave optics, special relativity, and the fundamentals of quantum physics.

The book consists of 19 chapters, mainly introducing the rotation of rigid bodies, fluid mechanics, vibration, wave science, relativity, gas dynamics, electrostatic fields, conductors and dielectrics in electrostatic fields.

DC circuits, magnetic fields of electric currents, electromagnetic induction, interference of light, diffraction of light, polarization of light, absorption and scattering of light, quantumality of light, fundamentals of quantum mechanics, lasers, nuclei and particle physics.

General physics includes: Newtonian mechanics, heat, electromagnetism, optics, atomic physics, but does not include "relativity" and"Quantum mechanics"and cutting-edge content in physics.

1. The difficulty is different.

Physics is difficult in college.

Basic physics is the least difficult.

General physics is of moderate difficulty.

2. The content involved is different.

University physics involves mechanics, heat, and electromagnetism.

Fundamental physics deals with the rotation of rigid bodies, fluid mechanics, vibration, wave science, relativity, gas dynamics, electrostatic fields, conductors and dielectrics in electrostatic fields, DC circuits, magnetic fields of electric currents, electromagnetic induction, interference of light, diffraction of light, polarization of light, absorption and scattering of light, quantumity of light, fundamentals of quantum mechanics, lasers, nuclei and particle physics.

General physics deals with forces and motion, the motion of rigid bodies and fluids, the foundations of relativity, the kinetic theory of gases, the fundamentals of thermodynamics, and the electric field of a stationary charge.

As the name suggests, college physics.

It is the physics class that those who are not physics majors need to learn, just like the physics learned in the high Chinese class, which is not very important and very simple. Fundamental physics is the foundation of physics that is studied in science schools, and although it is called foundation, it is difficult. General physics refers to those physics studied in engineering schools, which are relatively simple.

In general, basic physics is the most difficult, but most people don't learn it.

The easiest in college should be Introduction to Physics, then Liberal Arts Physics, College Physics, General Physics, Feynman Physics. The content of the lecture is not exactly the same, according to the difficulty. I guess I understand. General physics was later studied in the Department of Physics.

As long as you don't major in physics, it's pretty much the same. It's all an in-depth study of high school physics, with the addition of calculus ideas.

Physics majors are more detailed. Mechanical, optical, thermal, and electromagnetism are all called basic physics disciplines.

The higher physics disciplines have the legendary four major mechanics: electrodynamics, quantum mechanics, theoretical mechanics, thermodynamics, statistical physics, and so on.

College Physics, Basic Physics, and General Physics are different names, with the same scope of content, but the difficulty will actually vary from school to school, and there is no rule on who will be more difficult than whom.

These are all learned by non-physics majors, and physics majors should do general physics experiments, and basic physics is more detailed but not very difficult.

A single crystal furnace is a kind of equipment that melts polycrystalline materials such as polycrystalline silicon with a graphite heater in an inert gas (mainly nitrogen and helium) environment, and grows single crystals without dislocation by the straight-pull method.