What is the phenomenon of superconductivity and the application of the phenomenon of superconductivi

No resistance The requirements are very demanding.

The phenomenon of superconductivity is that in 1911, H. Kamelin Onnes of Leiden University in the Netherlands accidentally discovered that when mercury was cooled to the point where the resistance of mercury suddenly disappeared.

Later, he discovered that many metals and alloys have properties similar to those of mercury that lose resistance at low temperatures, and because of their special conductivity, H. Kamelin Onnes called superconductivity. Onness was awarded the Nobel Prize in 1913 for his discovery.

Conductors in a superconducting state are called "superconductors". The DC resistivity of a superconductor suddenly disappears at a certain low temperature, which is called the zero resistance effect. Without the resistance of the conductor, the current flowing through the superconductor does not cause a large loss of heat loss, and the current can form a strong current in the wire without resistance, thus generating a super magnetic field.

The real-world applications of the phenomenon of superconductivity are as follows:

1. Maglev train.

The phenomenon of superconductivity should enable people to use this principle to manufacture superconducting trains and superconducting ships, and use superconducting levitation to manufacture wear-free bearings, increasing the bearing speed to more than 100,000 revolutions per minute. In 1987, Japan began trial operation, but failures often occur, which may be caused by bumps caused by high-speed driving. There will still be certain technical obstacles for superconducting ships, but they will not hinder their operation.

2. Use the zero resistance characteristic.

The zero-resistance characteristic can be used to transmit electricity and make large magnets. Ultra-high voltage transmission has significant losses, while the use of superconductors minimizes the losses, limiting the adoption of superconducting transmission. With the development of technology and the continuous emergence of new superconducting materials, the hope of superconducting power transmission will be realized in the near future.

3. Use superconducting materials to make memory alloys.

Using superconducting materials, we can make memory alloys, which are extremely bending, expanding in hot water and shrinking in cold water. In a glass jar filled with cold water, a spring is stretched out, and when the spring is put into the hot water, the spring automatically retracts. In cold water, the spring returns to its original state, while in hot water, it shrinks, and the spring can be stretched and contracted an infinite number of times.

4. Superconductivity refers to the property that the resistance of some substances drops to zero under certain temperature conditions (generally in the lower temperature macro range). In 1911, the Dutch physicist H. Kamelin Onnes discovered that mercury suddenly enters a new state when the temperature drops nearby, and its resistance is so small that it is practically undetectable, and he called this new state of mercury superconductivity. Later, many other metals were also found to be superconductive.

What does it mean to achieve greenhouse superconductivity for the first time? Then we first need to understand what superconductivity is. Superconductivity refers to the phenomenon of conductors in which electrons are zero at a certain temperature.

If the resistance of the conductor is measured below ten minus 25 ohms of ten, the resistance can be considered to be zero. I can also understand that the absence of resistance means that the circuit will return when it is transported, and it will not cause the corresponding power loss. There will be no loss from the transmission station to the tough equipment that uses electricity.

In our daily lives, electricity is generated from power stations. In our homes, some power is lost due to the resistance of the wires themselves. Therefore, superconductivity has also become a popular project.

In the past, we have successfully developed superconductors at low temperatures. That is, when the temperature is lower, the resistance of such a conductor will be below the specified resistance of superconductivity. However, this does not apply to our real lives.

Because in daily life, we can't create such a low temperature environment for a long time, we can only produce it in the laboratoryTherefore, for the first time, human beings have achieved greenhouse superconductivity, which means that superconductivity can also occur at room temperature. <>

This research has provided great convenience for people's lives and also reduced the expenditure of many manpower and material resources. Once the greenhouse superconductor can be used in the transportation of electrical circuits, it can make up for the lost amount of electricity. In other words, we can use less raw materials to quickly deliver more auspicious electricity to our homes.

On Earth, thermal power is still the primary choice for power plants, so it is very beneficial for thermal power to reduce pollution to the atmosphere. If the realization of greenhouse superconductivity can be applied to the bookstore system, then the power generation requirements for thermal power stations will not have to reach such a high level, and the consumption of raw materials and the emission of toxic gases will be further reducedConducive to the development of the environment. In this way, we can truly take into account the environmental factors while developing and realize the scientific concept of development.

In our daily lives, there are many studies that cost a lot of money, but the benefits are far more than that。The discovery of superconductivity in greenhouses has an environmental benefit that cannot be measured in monetary terms.

Ten minutes to understand the strange superconducting phenomenon, what scientific and technological changes will superconductors bring to people!

The simple point is that there is no resistance when the current is transmitted.

The principle of superconductivity is good to destroy or:

At very low temperatures, the velocity of all the electrons of the object decreases, the valence electrons move in a fixed plane, and when the critical temperature is reached, the valence and electron velocity become lower and lower.

The core is accustomed to the rapid operation of electrons outside the nucleus at room temperature, and the slow operation of valence and electrons causes the phenomenon of temporary loss of valence electrons in atoms. The core appropriates the valence electrons of the adjacent core, and the adjacent core appropriates it, and all the cores are appropriated to the neighbors in a certain direction, so that the outer electron commons are formed.

This state of common electrons in the outer shell of the nucleus is the superconducting state of matter, and the object in which the outer electrons of the nucleus are in the common state is a superconductor.

When the current flows in the conductor, due to the resistance of the conductor itself, it will cause loss in the conductor and cause heating, thus limiting the residual force of conductive energy.

Decreasing reduces resistance, but in general, metals do not reduce resistance to zero due to a decrease in temperature. This is not the case with some metals, whose resistance decreases as the temperature drops, and when the temperature drops below a certain value (called the critical temperature), its resistance suddenly becomes zero. We call this phenomenon superconductivity, and conductors with superconductivity are called superconductors.