"Diamagnetism" refers to the phenomenon that when the magnetic field strength is lower than the critical value, the magnetic field lines cannot pass through the superconductor and the magnetic field inside the superconductor is zero, and "completely" refers to the phenomenon that the order of the two operations of lowering the temperature to reach the superconducting state and applying the magnetic field can be reversed. Pen % fun % Pavilion www.biquge.info

The reason for complete diamagnetism is that the surface of the superconductor is capable of generating a lossless diamagnetic superconducting current, which generates a magnetic field that cancels out the magnetic field inside the superconductor.

Flux quantization, also known as the Josephson effect, refers to the phenomenon that when the insulation layer between two superconductors is as thin as an atom, electron pairs can pass through the insulation layer to produce a tunnel current, that is, superconducting currents can be generated in the superconductor-insulator-superconductor structure.

Although the computer industry in the Tianhua People's Republic has just begun, the lithography machine is very rough, and the process is only 10 microns, but because of the characteristics of superconductors, it can increase the frequency to several hundred gigahertz (GHz) - no resistance, which means no heat energy accumulation. -- The computing power of the central processing unit in the early 21 st century is not weaker at all.

If quantum technology matures, this room-temperature superconductor called "Haisheng" can be used as a material for quantum computers, and now, the research team led by the genius Tianli Shi is indeed overcoming these difficulties.

However, Lu Yu went this time purely to see what Usopp had done with his abilities and to discover how room-temperature superconductors were created - even though the marine tree was probably a remnant of a thousand years ago, his merits were not insignificant.

"I ......"

After knocking on the door, Lu Yu realized through his spiritual senses that Usopp was indeed tinkering with something.

"Lu Yu, come in......" Usopp's happy voice came from the laboratory.

Lu Yu directly pushed the door open and entered, and saw Usopp in a white coat outside his military uniform fiddling with three sticks, so he stepped forward and asked, "What are you doing?" ”

"Make a toy, Keya alone, although we can meet from time to time, but I am worried that she is a little bored, so I plan to make something casual for her to entertain......" Usopp smiled, turned his head and said, "Let's get this during the break, it's not too much!" ”

"Not too much!" Lu Yu smiled and said, "How to play?" ”

There is no doubt that the phrase "how to play" gave Usopp the greatest encouragement, so he hurriedly said how to play: "This toy is called a triangle, and it is made of three substances that I accidentally explored...... This stick blows air through the hollow pipe inside to heat the gas...... This stick blows through the hollow pipe inside to cool the gas...... This piece of stick is very bad, blowing air through the hollow pipe inside, you can generate electricity...... However, even the static electricity of a winter sweater cannot be compared......"

Usopp said the effect of the three sticks one after another, and then combined the hot air rod and the cold air rod into the shape of a cross, put it on the electric rod, and said: "Look, throw this cross out, rotate it, the two bubbles will be very quickly generated, in the case of continuous hot and cold gas from the pipe, the hot and cold bubbles will be pulled to maintain constant, and once it is stopped, the hot and cold bubbles will not come out of the pipe, and a large number of bubbles will be mixed together, collide and rub against each other, and can produce a very strong wind." …… Not only can it be entertaining, but it also has a certain defensive nature...... Keya must have liked it. ”

"You may have made a big fuss......"

Lu Yu silently put on dust-free gloves and solemnly took the "triangle" from Usopp's hand.

'What ......'

Usopp couldn't help but be shocked when he saw Lu Yu's solemn appearance, and said, "The three substances I found can be made very easily, even if I don't have the swallowing flower, I can mix them......

"Gold is naturally occurring in nature, is it of little value? This is a supernova explosion that can only produce material, and it is extremely precious. ”

"It is also like deuterium, the isotopic element of hydrogen, extracted from seawater...... With nuclear fusion technology, a dozen grams can produce a vast amount of energy. It's not that the more artificial, the more precious. ”

"In fact, the conditions for the production of a large amount of matter are very harsh, and it is impossible for us to be born in the place where we live, and we can only rely on artificial conditions to produce precious substances......

Lu Yu corrected some mistakes in Usopp's heart, then thought silently for a while, took out a basin of water and sprinkled it around, and finally rotated the air conditioner and hot air rods, constantly making cold and hot bubbles produce.

The accumulation of hot bubbles carries the water vapor contained in the atmosphere up, while the cold bubbles fall, and the collision of the two will cool the accumulated water vapor and produce condensation.

That is, whether it will be a cloud or a cumuliform cloud.

Cumulonimbus clouds are formed by adiabatic cooling caused by convective movement of air, saturating and condensing water vapor, and one of them is cumulonimbus clouds, also known as thunderstorm clouds.

Although Luyu has not carefully studied meteorological theories, it is still very clear that it knows the three necessary conditions for the formation of cumulonimbus clouds:

1. A large amount of unstable energy. In order to produce convective weather, first of all, the atmosphere is unstable, and in the atmosphere where a large amount of unstable energy is stored, once it is subjected to sufficient impact, the unstable energy will be released and become the kinetic energy of the air upward movement.

2. Sufficient water vapor. Abundant water vapor is also necessary for the formation of thunderstorms, and without abundant water vapor, it is impossible to produce tall thunderstorm clouds, even if convection occurs. As a result, thunderstorm clouds tend to occur at times or areas where there is plenty of moisture.

3. Sufficient impact. The presence of unstable energy and water vapor in the atmosphere makes thunderstorms possible. For this to become a reality, there needs to be enough force to cause the air to rise above the height of the free convection, so that the unstable energy can be released and the updraft can develop strongly to form thunderstorm clouds.

If she gives it to Mei Tang, she will definitely be able to play with these three sticks and give it to Lu Yu......

A cloud condensed, then quickly turned black.

"Crackling"

In the darkening clouds, electricity is condensing.

Usopp opened his mouth, a little incredulous, this was not a toy.

"Boom!"

A thunderclap rang out, and under the guidance of Lu Yu with an electric cannon, it accurately hit an empty cup, which was no longer in shape, and was very charred by the electric heat.

"It's powerful, it's a powerful weapon." Usopp said excitedly.

"Not a weapon......"