Financial assistance to Emmatali's tribe is something that Yang Dezhu's family agrees to and is very willing to do. This is not only because of their sympathy for the people of Africa. And they want to have high hopes on the land that has just started to be developed. I hope to be able to get them more beautiful glowing stones for such a powerful reason. And it was negotiated by these women and unanimously approved. With such a powerful reason, Yang Dezhu can't accept it.

In fact, the root cause is that the glowing jade was put away by Yang Dezhu himself after Emmatali left, and no one gave it. You can't be a scoundrel no matter how coquettish. In the end, under hatred, all the women united to resist Yang Dezhu for three days, and Yang Dezhu stayed alone in the empty room.

Finally, knowing that this stone is really hopeless. After discussion, the women immediately increased the aid to the Emmatari tribe to 200 million, which greatly accelerated the process of the tribe's development and annexation of other tribes.

Such a result almost delayed Yang Dezhu's major event. Because he promised Jiang Lao to continue to support the relationship of the research center, it didn't take long for the old man Xie Ding to come to Yang Dezhu again to raise funds. And Li Wanting has doubled the amount of aid given to Africa. So it's a bit stretched to deal with the research center.

Fortunately, now Yang Dezhu Array has accumulated a lot of jade, and he has taken it out to top some research funds, so as not to affect the research progress of the research center.

However, Yang Dezhu was short of money, and it was only temporary. Because it will not take more than two months for many companies to receive dividends. Coupled with the standing funds of the Optimus Prime Fund. There is no problem at all to get through this period.

Life is still going on as usual, and Yang Dezhu even feels that the secret conversation with Jiang Lao seems to be just a dream. At least more than two months have passed, and the weather has begun to get cooler, and there are no major measures from the central government.

On a crisp autumn day, Yang Dezhu finally received a good news from the research center. That is, his nuclear submarine is finally completed.

This nuclear-powered submarine uses the military's hull body design. However, in terms of materials, it is better than the Chinese military submarine to use titanium alloy compressive materials, learning from Russia's advanced military industry, so it can support diving to a thousand meters or even deeper into the deep sea.

And unlike other submarines. The submarine's four water tanks below were all made in the style of a mechanically retractable grid fence. Moreover, there is a separate small water storage tank on the water tank, which is made into the style of a door cabin that can be used for people to enter the water, and is connected to an independent compressed air chamber for people to enter and exit underwater.

Although the old man Xie Ding has already reminded that this submarine has not been designed and tested, and there are no inspection indicators, although all kinds of things are used with the best performance. The cost is going to be hundreds of millions. However, he still didn't dare to guarantee safety, so let Yang Dezhu use it with caution.

Due to the nuclear power batteries used by submarines. So basically, adding ingredients once a year is fine. The excess energy will be stored in a large-capacity battery, so there is no need to worry about wasting energy if it is not practical for a long time, and the research center will also send people to help replace the nuclear fuel every year in the future, and the later service is still very good.

But Yang Dezhu also knows that this is not new. The funds for supporting research centers by themselves are not as good as one billion. Pay for each submarine by themselves, and if they can't get it right, then it really can't be justified.

Although he knew that it would take a few more days to sail in the sea when the submarine came, Yang Dezhu was already anxious and couldn't wait on the dock next to him every day.

As anxious as he was, there was also a face. Because she is the only one Yang Dezhu who is allowed to sail with him.

Although the submarine has been sailing to Yang Dezhu's house for several days. But after all, there are many features that you can't try. Therefore, when the safety is not determined, Yang Dezhu will not agree to the family coming up to take risks. Although his women had learned the state of internal breathing in order to double cultivate with him. But after considering the experience, skills and exercises, Yang Dezhu still felt that it was safe to let Yan Rong, a woman who had been at sea with him once and had enough life-saving ability, to go on a trial voyage again.

After four or five days of anticipation, the submarine finally arrived. The few navy soldiers stayed in the guest rooms of the old team's villa for two days, teaching Yang Dezhu and Yan Rong how to steer the submarine.

Fortunately, Yang Dezhu and Yan Rong are not stupid. I learned it in two days. After Yang Dezhu gave each of the soldiers 10,000 yuan in red envelopes, they happily got on the plane and left.

And Yang Dezhu and Yan Rong's trial voyage couldn't wait to start. The first thing to test is, of course, the depth of the dive.

Yang Dezhu and Yan Rong controlled the submarine to sink gradually, until it dived 1,300 meters underwater, and a danger warning finally sounded inside the submarine.

But even this has already made Yang Dezhu quite satisfied. Because this is already much better than the data of the Huaxia military.

In addition, the deepest part of the ocean is the Mariana Trench in the Pacific Ocean, with a maximum depth of 11,034 meters, which is near the Philippines and was formed by the subduction of the Pacific plate to the Eurasian plate. The average depth of the entire ocean is about 3,800 meters.

It is said that someone once set a record for diving 400 meters with his bare hands. At that time, this person only sank quickly with the help of ropes and heavy objects, and quickly floated with the help of air bags, but there was no oxygen, anti-pressure equipment, etc., so it could be regarded as not using diving equipment.

In the case of wearing a wetsuit and using oxygen, the safe diving depth is also about 400 meters, if you want to dive to a deeper depth, you must use special oxygen, that is, a mixture of oxygen and rare gases, so that you can dive to a deeper depth, but the danger will be further increased, mainly because of the problem of blood dissolving other gases.

And with the help of scientific expeditions to deep-water submarines, with current science and technology, man can dive into the deepest part of the Mariana Trench. However, the same cost is also unaffordable for Yang Dezhu.

He built his own submarine, and he was already satisfied with being able to dive to such a depth. Besides, he has internal breathing, and his body is super strong. You don't have to worry about breathing and dissolving in the blood. Therefore, Yang Dezhu built submarines, to put it bluntly, to get himself a safe haven for undersea exploration. After all, there are too many dangers in the depths of the ocean, and he is not interested in fighting strange slippery creatures such as tiger sharks and sea pythons. When the time came, he swam in front, and Yan Rong drove the submarine to follow behind. In case of danger, he can escape back to the water tank to escape. This way, they have a lot more places to go.

As for the deepest part of the trench or something, Yang Dezhu is not a crazy scientist, he really has no interest.