Ten thousand I am across the heavens

Chapter 414

Half a month passed quickly. After manufacturing countless failed high-pressure steel cylinders, Xiao finally mastered the qualified technology, completed the cryogenic separation of air, and was barely able to produce liquid helium.

The temperature of liquid helium is close to minus 270 degrees Celsius, that is, it is very close to absolute zero. It is rare to find any element in nature that can be lowered to a lower temperature than this. It is not clear what the result will be if it is covered by a large amount of liquid helium However, the production of liquid helium is too difficult. During the production process, it is even necessary to wrap the container with liquid nitrogen to maintain an ultra-low temperature environment.

So far, Akatsuki has only accumulated liquid helium for two sealing scrolls, which means that there are only two chances to make a move.If you fail to capture the enemy, you can only wait until the next batch of liquid helium is produced.

In contrast, liquid nitrogen whose temperature is not so low is much less difficult to produce. There are many liquid nitrogen reels, and the number is almost unlimited. Compared with the cloud bomb reel, the consumption is even lower. Many, it can be used as a conventional weapon on the battlefield.

In modern warfare, very few people use liquid nitrogen as a weapon. On the one hand, its cooling efficiency is not as high as imagined, and it does not have any good lethality against armored units, and it does not have ordinary liquid nitrogen for soft targets. Bombs are more cost-effective, but for ninjas, especially when liquid nitrogen can be stored with a sealing scroll, it becomes a very useful weapon.

Even if you don’t use the liquid helium scroll, you can use the liquid nitrogen scroll to deal with ordinary ninjas, and it still has a pretty good lethality. It can also be used as the pre-skill of the liquid helium scroll to reduce the temperature of the surrounding environment, so that the liquid helium has stronger lethality .

When the day agreed with Sand Hidden Village came, Akatsuki's elite and Sand Hidden Ninja set off together to intercept the Thunder Country's troops.

Almost all the ninjas dispatched this time were ninjas, and their strength was higher than that of Chunin, but it didn't mean that an army composed of ordinary people was useless.

On the one hand, the army formed by ordinary people, under scientific and reasonable training, more or less already has a certain amount of chakra. It may not be enough to use ninjutsu, but it is enough to use the seal scroll, so even if you face it head-on Ninjas, they also have some resistance.

On the other hand, the air force is still relatively new to the ninja world. Although all major countries have more or less flying ninjas, they do not have their own professional air force, at least not an organized air force.

As for high-altitude reconnaissance, whether it is safety or reconnaissance efficiency, it is quite high, especially now that there are cloud bomb reels, even if the pilot of the plane is flying a biplane, when he finds the enemy on the ground, he can tear it apart. A scroll is dropped.

It's hard to imagine that biplanes can be used to drop powerful cloud bombs.The power of a bomb is directly linked to its mass. For ordinary bombs, the internal oxidizing agent and reducing agent react with each other to generate energy. The greater the amount of oxidizing agent and reducing agent, the greater the power of the explosion. Of course, there are It may be that the composition of the explosive itself is unstable.

Even if it is a cloud bomb, it just takes advantage of the reaction with the air and saves the quality of the oxide, but in the final analysis, the greater the mass, the greater the power. The load capacity of the biplane is to carry a few cluster grenades into the sky. To a certain extent, no one on Earth can expect them to bomb the ground, but in the ninja world... a sealed scroll may contain more than ten tons of explosives!
……

For the Yunyin army, the perception ninjas are almost 24 hours a day to fully use their perception ability. Even if their perception ability is not a blood-consuming blood-successor that requires bursting blood vessels to activate their perception ability, it will consume a lot of energy to activate the perception ability for a long time.

But this is necessary. If the sky is not scanned for a long time, some planes will use the cover of clouds to drop bombs on their main force.

The Sensing Ninja still remembers the first time he met Akatsuki's reconnaissance plane. At that time, he didn't understand what the reconnaissance plane meant. He just saw a big bird-like thing coming out of the clouds and flying in the sky. After turning around the Thunder Kingdom military camp, it flew away.

He was about to report this matter to the commander, and asked the powerful ninja to shoot down the reconnaissance plane in the sky, when he saw an inconspicuous black dot falling down.

Such a small thing no one thinks how powerful it is, until the thing fell about [-] meters away from their heads, and a violent explosion occurred above the barracks.

The fireball engulfed everything in the camp, and the shock wave shredded the ground, just like being hit by a weakened version of Shenluo Tianzheng, but this bomb caused heavy losses to the Yunyin Village camp. In his own tent, he was killed by a violent explosion without realizing what happened.

As for suffocation... it doesn't do much harm to the ninja. The ninja's ability to hold their breath is very strong, just like holding back several episodes of [-]-[-] in a water prison.

After suffering this big loss, Yunyin Ninja began to continuously scan the sky, searching for any enemy planes that had sneaked up.

After tasting the sweetness once, Xiao's pilots began to play more and more. At first, it was just ordinary scouting. If there was a chance, they would bomb and bomb. Later, they found the enemy's camp and went to bomb and attack.

The planes piloted by ordinary pilots are easy to spot, so replace them with ninjas and use the transformation technique to turn yourself into a cloud or a big bird, which can evade conventional detection to a considerable extent.

If this still doesn't work, you can also find a ninja who can pass through, and pass through is not a ninjutsu of the eighteen forbidden, but a ninjutsu that makes oneself transparent.

This trick can not only make yourself transparent, but also make the objects you touch transparent. Otherwise, wouldn't the Toutun ninja not be able to wear clothes on the battlefield?So in theory they could also make the plane transparent.

This is why Yunyin Village perceives the ninjas to constantly scan high in the sky. They have been attacked by invisible biplanes, and they have suffered heavy losses before reaching the battlefield.The perceptual ninjas are already exhausted, but they still have to guard against them. If the enemy's plane becomes transparent and attacks again, it will be too late.

Just when the perception ninja was exhausted to the limit and was about to change shifts.During the perception, he suddenly discovered the ninja of Yunyin Village running towards him in a hurry from the rear of the team. He could already hear the ninja's shout without his notification.

"It's not good! People from Sand Yin Village and Akatsuki attacked our supply line. Their...their fire escape is too terrifying!"

[To be continued]

Ask for collection, please recommend tickets~

　Ask for a ticket~

　　
　
(End of this chapter)