"This guy from the Warring States actually asked me to do this. ”

In the first half of the Great Voyage, Kraikana Island, Ye Wuji looked helplessly at the abandoned, dilapidated, and unusable port, and after leaving the navy on the warship on standby, he walked on the island alone.

"What a pity. Walking on the road on the island that seemed to have been walked for a long time, looking at the collapsed buildings covered with weeds around him, Ye Wuji sighed slightly.

From the sights he saw along the way, Ye Wuji could deduce that this island had once had very brutal battles, and there were traces of war damage all around.

"Sengoku won't lie to me, is he really on this island. Following the path on the island that seemed like no one had traveled for a long time, Ye Wuji walked towards the center of the island.

While.

Walking on the road, Ye Wuji suddenly flashed to the left, dodging a slash from behind him, and at the same time, ten hands behind him appeared on his right hand, blocking the attack from another direction.

"It's, apes, no, baboons. Ye Wuji looked at the dozens of baboons with various weapons in their hands that suddenly appeared, most of the baboons were holding swords, and a few baboons who were far away from him were holding guns in their hands.

"Do animals also use weapons? As he said this with a smile, his body flashed to the left at the same time, dodging the bullets fired by the baboon holding a sniper rifle in the distance.

At the same time, the other baboons pounced on Ye Wuji at the same time, and the weapons in their hands slashed towards the various vital points of Ye Wuji's body.

Dangdangdang.

Ye Wuji used his ten hands to block the attacks of these baboons, and slowly retreated towards the rear, "It's amazing, not only can I use weapons, but I can even learn swordsmanship." ”

The attacks of these baboons are not out of order, in the attack, there are obviously traces of swordsmanship, and the cooperation of the baboons is also very tacit.

"It can't be taught by that guy, this guy is so idle. While thinking this, the ten hands in Ye Wuji's hand turned, knocking the weapons in the hands of the baboons attacking him, and then rewarded each baboon with ten hands, knocking them all down, and then stacking them together.

Just as Ye Wuji was about to clean up the baboons that had been attacking him with guns, the baboons fled in horror.

"It's even going to run away. ”

"Yo, our world's number one swordsman is really leisurely. Ye Wuji squatted on a stone about three trees high on the side, looked at the figure in front of him who was busy in the field, and said with a smile.

After packing up the baboons and encountering three waves of baboons along the way, Night Mowgli finally came to the only building on the island that was still intact.

This is a huge castle with a black appearance, on the side of the castle, Ye Wuji saw his target this time, Hawkeye Mihawk, who had just been called the world's number one swordsman not long ago.

"How do you have time to come here. Mihawk handed the hoe in his hand to the baboon beside him, and walked towards Ye Wuji with a smile.

This is a field about the size of two football fields, a large number of baboons are busy in the field, these baboons are similar to the appearance of Ye Wuji before, but their expressions are very different, these baboons look very kind, there are a few baboons not far from Ye Wuji, smiling and nodding at Ye Wuji.

The baboon, which was very ferocious at first glance when he fought with Ye Wuji, if it weren't for the same appearance, I'm afraid no one would think that they were the same kind of creature.

"Congratulations on becoming the world's number one swordsman. Ye Wuji smiled and said to Mihawk, who walked up to him.

"You're here for this nonsense. ”

"Of course not, I actually came here to find you on the orders of the Admiral, do you know the Seven Martial Seas. ”

"Seven Martial Seas, what does this have to do with me. ”

"Of course it matters, the World Government, the Navy is ready for you to be the first Seven Martial Seas to set an example. ”

When Sengoku and the others decided to let Hawkeye Mihawk become the first Seven Martial Seas, all that remained was who to send to convince Mihawk.

It happened that at this time, it was rumored that Mihawk had picked several great swordsmen in a row in the country of Wano, and it was rumored that he was the world's number one swordsman, so this errand naturally fell on Ye Wuji's body.

After all, Night Mowgli has the grace of a sword gift to Mihawk.

It is worthy of the world government, after receiving the Navy's decision to make Hawkeye Mihawk the first Seven Martial Seas, he immediately sent the spies below, and soon found out where Hawkeye was.

So Night Mowgli came to this island to find Hawkeye Mihawk.

It's not just the top brass of the Navy who are looking for personnel from the Seven Martial Seas, but the spy personnel of the World Government are also looking for pirates from all over the world who can become pirates from the Seven Martial Seas.

The rule of the Seven Martial Seas is to obey the dispatch of the World Government and the Navy, and cannot attack the territory of the member countries of the World Government, but there is no restraint on those countries that are not members of the World Government.

"Let me be the Seven Martial Seas. After hearing Ye Wuji's words, Mihawk immediately fell silent, as for the Seven Martial Seas, thanks to the blessing of the newspaper's hype, as long as you read the newspaper, you basically know.

The rights and obligations of the Seven Martial Seas are very clearly recorded in the newspapers.

As soon as the Seven Martial Seas system came out, many pirates who thought they were very powerful began to report their courage, hoping that they could become one of the Seven Martial Seas.

For most pirates, becoming the Seven Martial Seas is equivalent to getting the gold medal for avoiding death, no matter how he robs, the navy and the world government will not care.

Even if it is robbery and murder in front of the navy, the navy cannot handle it.

Although it is necessary to pay a large amount of money every year like the world government, this amount of money is nothing compared to the power of the Seven Martial Seas.

Strictly speaking, the Seven Martial Seas are actually similar to those countries that have joined the World Government, and the money paid by the Seven Martial Seas is equivalent to heavenly gold.

However, these self-proclaimed pirates, the Warring States do not look down on them at all, although they have to implement the World Government's Seven Martial Seas system, but the Warring States will not put those heinous pirates in the position of the Seven Martial Seas.

Those pirates who kill innocents indiscriminately will never become one of the Seven Martial Seas.

Once these pirates become the Seven Martial Seas, holding the world government as a shield, I don't know how many people will be harmed.

"It's not impossible for me to become the Seven Martial Seas, as long as you promise me one condition, I will agree immediately. Mihawk, who had thought about it, stared at Ye Wuji with a pair of sharp eyes and said.

"On what terms?"

"Fight me again. Mihawk said with a sharp look in his eyes, flashing a hint of strangeness.

The battle between Night Wuji and Whitebeard has long spread throughout the sea, although Night Wuji looked very miserable at the time, but he hurt Whitebeard after all.

The so-called Wen Wu No. 1, Wu Wu No. 2, Whitebeard's world's number one powerhouse, I don't know how many challenges he faces every year, although most of them are blocked by Marco and others, but there are still many strong people, even Marko and others can't stop it.

When Ye Wuji first showed the strength of the great swordsman, there were many people who challenged it, let alone now.

Fortunately, Ye Wuji's naval identity, Sengoku blocked everyone who wanted to challenge.

With the skin of the navy, those who want to challenge must follow the rules, and if you don't want to challenge Whitebeard, as long as you have the ability to rush in front of Whitebeard, you can challenge Whitebeard.

Hawkeye, the world's number one swordsman, also wants to try the gap between himself and the world's number one powerhouse.

"I'm sorry, I'm afraid I won't be able to fight you in the short term, and my injuries haven't healed yet. "This excuse is exactly what Ye Wuji used to deal with the Warring States.

Sengoku didn't doubt this excuse of Night Mowgli,

Thunder and lightning is a majestic and somewhat intimidating electrical discharge phenomenon accompanied by lightning and thunder. Thunder and lightning are generally generated in cumulonimbus clouds with strong convection, so they are often accompanied by strong gusts of wind and heavy rain, and sometimes hail and tornadoes. The top of the cumulonimbus cloud is generally high, up to 20 km, and the upper part of the cloud often has ice crystals. Processes such as the attachment of ice crystals, the breaking of water droplets, and the convection of air cause electric charges to be generated in the clouds. The distribution of charges in the cloud is more complex, but in general, the upper part of the cloud is dominated by positive charges and the lower part is dominated by negative charges. As a result, a potential difference is formed between the upper and lower parts of the cloud. When the potential difference reaches a certain level, an electric discharge will be generated, which is our common lightning phenomenon. The average current of lightning is 30,000 amps, and the maximum current can reach 300,000 amps. The voltage of lightning is high, about 100 million to 1 billion volts. A moderate thunderstorm can reach 10 million watts, which is equivalent to the output of a small nuclear power plant. During the discharge, due to the sudden increase in temperature in the lightning channel, the volume of air expands dramatically, resulting in a shock wave that causes a strong thunderclap. When a charged thundercloud comes close to a protrusion on the ground, a violent discharge occurs between them. At the site of the lightning discharge there will be a strong flash of light and the roar of an explosion. This is the lightning and thunder that people see and hear.

Kind editing

Burst lightning

Burst lightning

There are four types of lightning: direct lightning, electromagnetic pulse, spherical lightning, and cloud flash. Among them, direct lightning and spherical lightning will cause harm to people and buildings, while electromagnetic pulse mainly affects electronic equipment, mainly caused by induction, and cloud flashes occur between two clouds or on both sides of a cloud, so they are the least harmful to human beings.

Direct lightning is to accumulate a lot of electric charges on the cloud, and a large number of electric charges have to find a channel to vent, sometimes it is a building, sometimes it is an iron tower, sometimes it is a person in an open place, so these people or objects become a channel for the discharge of electric charges, and the person or building is injured. Direct lightning is the most powerful lightning, while spherical lightning is less powerful than direct lightning.

Formation of thundercloudsEdit

The condition for the generation of thunder and lightning is that there is accumulation in the thunderstorm cloud and polarity is formed. Scientists have made a large number of observations and experiments on the charging mechanism and the regular distribution of electric charges in thunderstorm clouds, accumulated a lot of data, and put forward various explanations, some of which are still debated today.

1. The "ion flow" hypothesis in the initial stage of convective clouds

There are a large number of positive and negative ions in the atmosphere, and on the raindrops in the clouds, the charge distribution is uneven, the outermost molecule is negatively charged, the inner layer is positively charged, and the potential difference between the inner layer and the outer layer is about 0.25V higher. In order to balance this potential difference, the water droplets must preferentially absorb negative ions from the atmosphere, which gradually causes the water droplets to take on a negative charge. When convection begins, the lighter positive ions are gradually carried to the upper part of the cloud by the rising air current, while the negatively charged cloud droplets remain in the lower part because they are heavier, causing the separation of positive and negative charges.

Natural phenomenon - thunder and lightning

Natural phenomenon - thunder and lightning (20 photos)

2. Charge accumulation of cold clouds

When the convection develops to a certain stage, the cloud extends to a height above the 0°C layer, and there are supercooled water droplets, graupel particles and ice crystals in the cloud. This kind of cloud composed of water vapor condensates in different phases and with a temperature below 0°C is called a cold cloud. The charge formation and accumulation processes of cold clouds are as follows:

(1) Supercooled water droplets freeze on the graupel and become electrified

In the clouds, there are many water droplets that do not freeze when the temperature is below 0°C, and this kind of water droplets are called supercooled water droplets. Supercooled water droplets are unstable and freeze as soon as they are gently shaken. When supercooled water droplets collide with graupel, they freeze immediately, which is called collision freezing. When a freeze occurs, the supercooled water droplet immediately freezes into an ice crust on the outside, but its interior remains liquid temporarily, and the temperature of the liquid supercooled water inside is higher than that of the outer crust due to the latent heat transferred from the outside to the interior. The difference in temperature causes the frozen supercooled water droplets to be positively charged on the outside and negatively charged on the inside. When the interior freezes, the cloud droplets expand and split, and the outer skin breaks into many positively charged ice chips, which fly to the upper part of the cloud with the air current, and the core part of the negatively charged frozen droplets attaches to the heavier gragun, making the graupel negatively charged and remaining in the middle and lower part of the cloud.

(2) The friction collision between the ice crystals and the graupel causes electricity

Graupel is made up of frozen water droplets, which are white or milky white and have a relatively crunchy structure. Since cold water droplets often collide with it and release latent heat, it is generally hotter than ice crystals. Ice crystals contain a certain amount of free ions (OH- and H+), and the number of ions increases with increasing temperature. Due to the temperature difference between the graupel and the ice crystals, there must be more free ions at the high end than at the low end, so the ions must migrate from the high temperature end to the low temperature end. On ion migration, the positively charged hydrogen ions are faster, while the negatively charged, heavier hydroxide ions are slower. Therefore, there is a surplus of hydrogen ions at the cold end for a certain period of time, resulting in a negative polarization at the high temperature end and positive at the low temperature end. When the ice crystals come into contact with the graupel and then separate, the warmer graupel becomes negatively charged, while the cooler ice crystals become positively charged. Under the action of gravity and updrafts, the lighter positively charged ice crystals concentrate in the upper part of the cloud, while the heavier negatively charged graupel particles stay in the lower part of the cloud, resulting in the upper part of the cold cloud being positively charged and the lower part negatively charged.

thunder

thunder

(3) Water droplets are energized by containing thin salts

In addition to the above two mechanisms of electrification of cold clouds, it has also been proposed that the mechanism of electrification due to the presence of thin salts in water droplets in the atmosphere has also been proposed. When a cloud droplet freezes, the ice lattice can contain negative chloride ions but repel positive sodium ions. Thus, the frozen part of the water droplet is negatively charged, while the unfrozen part is positively charged (the water droplet freezes from the inside out). As the graupel particles formed by the freezing of water droplets fall down, the water that has not yet had time to freeze on the surface is dropped, forming many small positively charged cloud droplets, while the frozen core part is negatively charged. Due to the separation of gravity and air currents, the small droplets of the electric positive point are carried to the upper part of the cloud, while the negatively charged graupel particles stay in the middle and lower parts of the cloud.

3 Charge accumulation of warm clouds

In the tropics, there are some clouds where the entire cloud body is located in the region above 0°C. As a result, it contains only water droplets and no solid water particles. This type of cloud is called a warm cloud or a water cloud. Warm clouds can also show thunder and lightning. In the development of thunderstorm clouds in the mid-latitudes, the cloud body is located at 0°C, etc., and the number mechanism plays a role in different development stages. However, the most master.