Chapter 2953 Another Achievement

Superconductivity refers to the state in which the electrical resistance of a conductor is zero at a certain temperature. In 1911, Dutch physicist H. Camerin Onnes discovered that mercury suddenly entered a new state when the temperature dropped to around 4.2K. The resistance was so small that it could not be measured in practice. He called this new state of mercury a superconducting state, and later discovered that many other metals also have superconductivity.

In 1933, Meissner and Ossenfeld in the Netherlands jointly discovered another extremely important property of superconductors. When the metal is in a superconducting state, the magnetic induction in the superconductor is zero, but the magnetic field originally existing in the body is squeezed out. Go out; experiments on single crystal tin balls found that when the tin ball transitions to a superconducting state, the magnetic field around the tin ball changes suddenly, and the magnetic field lines seem to be repelled out of the superconductor at once. This phenomenon is called "Meissner effect".

Later, people also did such an experiment: put a small but strong permanent magnet in a flat tin plate, and then lower the temperature to make the tin plate appear superconducting, then you can see , The small magnet actually left the surface of the tin plate and slowly floated up without moving.

Superconducting materials and superconducting technology have broad application prospects. The Meissner effect in superconducting phenomena allows people to use this principle to manufacture superconducting trains and superconducting ships. Since these vehicles will run in a suspended frictionless state, This will greatly improve their speed and quietness, and effectively reduce mechanical wear and tear.

The superconducting suspension can be used to manufacture wear-free bearings, and the bearing speed can be increased to more than 100,000 revolutions per minute. The zero-resistance characteristics of superconducting materials can be used to transmit electricity and manufacture large-scale magnets. Ultra-high voltage transmission will cause a lot of loss, and the use of Superconductors minimize losses.

However, since superconductors with higher critical temperatures have not yet entered the practical stage, the application of various technologies is limited. If what is said in this email is true, it means that human science and technology have undergone earth-shaking changes.

In factories, people can process parts with tools with a speed of more than 100,000, and there is no need to worry about bearing wear; outdoors, people can take superconducting trains, which can even exceed the speed of airplanes; in cities, people can drive suspended cars, You don’t have to worry about traffic jams anymore, and you can even park your car outside the balcony, which solves the problem of difficult parking.

It is also of great significance to reduce the consumption during the transmission process. Although my country's UHV transmission technology dominates the world, there is still consumption during the transmission process, which also affects the transmission distance of the power station. If superconducting wires are used, the whole country Just a few large power stations are all that is needed.

In the future, thermal power stations can be directly canceled, and photovoltaic power stations seem to be able to withdraw from the stage of history. Although photovoltaic power generation is a relatively clean energy source, it will still cause some pollution. As for hydropower stations, it can also be greatly reduced, and only the flood and drought prevention of dams will be retained. Function.

The large-capacity battery means that the era of electric vehicles will really come. The current fast charging technology can charge 80% of the electricity in 34 minutes, which is equivalent to about 300 kilometers of cruising range.

It only takes a short while for a combustible car to be filled with gasoline that can travel 300 kilometers, and it still has a huge advantage over electric cars.

But according to the information provided by Shen Long, this new type of battery can store 500 kilometers of electricity in one piece, and its size is smaller, only less than one-third of the current car battery. In this way, a car can at least With three batteries installed, the range is 1,500 kilometers.

And the charging speed is also very fast. It only takes less than one minute for one battery to be fully charged, and it only takes two minutes for all three batteries to be fully charged. , Diesel is poor, there is no need to worry about fuel explosion in a car accident.

Academician Lu looked over the production process of this battery and the list of materials, and found that the process is not complicated, and there are no particularly expensive products in the materials. The battery produced in this way will not cost more than the car batteries on the market today.

At the same time, according to the product description, this battery can also work in various harsh environments such as drought, humidity, and cold, and is even wider than fuel vehicles. At least electric vehicles do not have to worry about stalling in areas with thin air.

It is foreseeable that once this kind of battery can be commercialized, the history of fuel vehicles should be over. This performance completely beats the existence of ordinary cars?

After reading it, Academician Lu immediately reported the content of the email, which immediately attracted the attention of the superior department, "Haha, there have been many good things recently. First, the controllable nuclear fusion has made a major breakthrough, and now this one sent us Such a good thing has arrived! It's time to celebrate!"

"Yes, if this kind of battery can really be manufactured, then the good days of our domestically produced cars will finally come!" Although the sales of domestically produced cars have been rising year after year, there are many joint venture brands, most of which use foreign technology. The localization of automobile production technology is much slower than the localization of high-speed rail.

These leaders are very dissatisfied with this, but there is no good solution for the time being. Now, with this technology, that is a good thing. Domestically-made cars can finally turn around.

"Superconducting technology is equally important, and has a wide range of applications in various fields such as industry, military, and civil use. If we can make this material, we can leave European and American countries far behind in many fields! A scientific and technological revolution." These achievements are of great strategic significance.

"Immediately organize a skilled, loyal and reliable team to study these two materials, and strive to produce them as soon as possible." After so many things before, they are now full of trust in Shen Long's emails, and now controllable nuclear fusion has been realized. These data must also be true.

"Hey, I really want to thank that person back then, but it's a pity that he has been reluctant to show up!" Someone sighed regretfully, "I don't know how many good things he still hasn't brought out."

"We can't be too greedy. These are unexpected joys. It's already very happy to have such a harvest. We can't make people angry because of greed. Besides, judging from the current situation, it's not good for people to guard The thing is not willing to take it out, maybe it is waiting for us to slowly digest these materials? No, the new materials came as soon as Academician Lu made the results."

"According to this, if we come up with new achievements, there may still be materials sent over there?" Some people's eyes lit up when they heard this, and I have new achievements here.

book reading room

txt download address:

phone-reading: