In the Yuyuan, Taiye Pond, several ships were moored in the center of the lake. The chimneys on the boat were emitting black smoke. People formed a circle on the deck. Several men were busy, wearing strange equipment with the help of others. Emperor Yuwen Wen took his sons to watch.

They watched the "water ghost" get out of the water at close range, but the training grounds were actually the divers of the navy who were conducting daily training, but the training grounds changed from the Weishui Shuizhai Training Ground to the Taiye Pool.

The development of compressed air technology has made diving gas tanks a reality. Therefore, divers who are carrying gas tanks have become "frogmen" in the water's special combat troops. Frogmen carrying portable mines can dive in the water for several miles, place the mines at the target, and detonate them regularly.

The target object can be a ship, a water surface facility or a dam. The first time the frogman has entered actual combat was in the war to fight Goguryeo, which has a good effect.

It is precisely because the diving frogman is an unprecedented underwater combat force and is elusive, so it is also called "water ghost".

Nowadays, the Central Plains are peaceful, and there is no target for "water ghosts" to attack in rivers and lakes, so their more mission is to repair ships, dams, piers, and trestles.

Because long-term diving is a highly demanding technical job, experienced "water ghosts" cannot be cultivated in a short period of time, so the military and the China Merchants Bank of China Merchants Group have been cultivating "water ghosts" and maintaining a sufficient number of "water ghosts" teams in case of emergency needs.

Now, Yuwen Wen and his sons watched the divers put on their diving suits, flippers, diving glasses, then put on air tanks on their backs, connect the breathing device, turn them into "frogmen", and then wait for orders.

Yuwen Weiping and Yuwen Weixing took out several pure white porcelain plates as big as palms and threw them out in different directions, causing them to fall into the water.

When it sank, the "water ghosts" recorded their positions, boarded the boat, and rowed to the position where the porcelain plate fell into the water. Then they sat on the boat gang with their backs, fell backwards, and disappeared.

Until then, Yuwen Weiping and Yuwen Weixing, who were full of questions, started asking their father for questions.

There are many questions, one is why "water ghosts" wear close-fitting knitted clothes first, and then wear diving suits.

"The reason is very simple. The deeper the water, the lower the water temperature. If divers do not keep warm in low-temperature water, it will easily lose temperature, which will affect the range and time of underwater movement."

After Yuwen Wen finished speaking, he signaled his sons to look at the deep water sampler he had just lifted up and pointed to the thermometer inside the sampler: "Look, the water depth is three meters deep, and the temperature at the bottom of the water is much lower than the water surface."

Yuwen Weiping and Yuwen Weixing nodded and looked at the busy people on the deck again.

A diving device "Diver Bell" that looks like a big bell was lifted by a crane at this time. Its top was thick iron chains and Eucommia hose, and there was a circular glass window on the side wall. People sitting inside could see the outside through the window.

Two divers wore special diving suits, which were like thick onesie and boots with metal counterweights. With the help of others, the diver wore a round metal diving helmet on his head, becoming another kind of "water ghost".

The helmet has a circular glass window on the face. After the diver puts on the helmet, outsiders can see his face through the glass window. This means that after the "water ghost" goes into the water, he can also see the outside through the glass window.

There is a long snorkel tube of Eucommia ulmoides on the back of the helmet, wrapped around the waist of the "water ghost", and it looks at least several feet long.

With the help of others, two "water ghosts" came to the metal diving bell, got in from the bottom, and then waved outwards at the small glass window on the side wall.

With the roar of the machine, the crane cantilever turned to the side of the ship, poked the diving bell out, and the winch turned, lengthening the iron chain and hose, so that the diving bell slowly entered the water and gradually disappeared.

After a while, the electric bell next to the crane rang, and the water ghost located in the diving bell prompted to the water surface that he had prepared.

Yuwen Weiping and Yuwen Weixing quickly took out several patterned porcelain plates the size of palms and threw them at the water near the diving bell's drain.

After throwing it away, continue to ask my father for questions.

There are also many questions, first of all, "What is the use of a diving clock?" Ask various questions, Yuwen Wen will not be able to overcome them.

"Underwater operations such as checking bridge piers and dams, because the bottom of the water has poor vision, it takes a long time, and it can take two or three hours. Therefore, in order to improve work efficiency, a diving device like a diving clock is needed to help the water ghosts work. The reason is like saving manpower by riding a carriage."

"Divers take a lot of tools to dive on diving bells and float up, which can save a lot of physical strength..."

"They wear submersible helmets, and their snorkels are connected to the air valves in the submersible clock. The submersible clock itself also has a snorkel, which is connected to the air pump on the ship. The air pump on the ship is driven by the steam engine to continuously input the air, allowing the water ghosts to move under the water for a long time. After all, the gas storage capacity of the gas tank is limited."

"The diving clock has sufficient air supply, so it can light candles in it, so that the diving clock sinking in the water can shine, so that divers who leave the diving clock will know the location of the diving clock."

"Think about it, whether it is a river or a sea port or when inspecting the pier, how much time will it take for divers to carefully check one by one? If there is a snorkel that is always supplying gas on the shore, how much trouble will it be saved?"

"The air supply pump also has a double-hand-cranked air pump. A sea boat is equipped with a hand-cranked air pump. Pearl pickers can wear a submersible helmet and supply air with a snorkel. They can stay at the seabed for more time and catch more corals and pearl shells."

"Don't underestimate this set of equipment, Liangyang Trading Company and the General Administration of Steamship Investment and Investment, every year, they have to purchase a lot of underwater operations, and do twice the result with half the effort."

Yuwen Wen said endlessly, Yuwen Weiping and Yuwen Weixing kept nodding. Diving was so fun, but they didn't dare to get into the water.

It’s not that I’ve never been able to get it, but that I’m afraid to get it because I’ve been able to get it.

They once wore diving helmets and leaned against the ventilator to supply air. They followed their father to get water from the Taiye Pool and walked towards the center of the pool (lake), getting deeper and deeper.

At that time, only the water above the head was rippling with light and the surroundings were pitch black.

Although there were "water ghosts" guarding each other, the two brothers still felt scared. They always felt that there seemed to be some water monster lurking in the dark water, so they were waiting for them to swim over and start killing.

So, since that experience, the two brothers have never dared to dive into the bottom of the water again.

But it's quite interesting to watch others dive.

Not long after, the "water ghosts" (frogman) who dived into the water to touch the porcelain plate came back one after another, and many of the pure white porcelain plates thrown out by the two brothers came back.

After a while, the ringing sound came from the crane where the diving bell was lifted. After the crane lifted the diving bell, the divers who came out of the diving bell also handed over a lot of patterned porcelain plates.

As examiners of this training, Yuwen Weiping and Yuwen Weixing gave the "water ghosts" full marks.

Yuwen Wen felt relieved when he looked at these diving devices that did not belong to the "ancient".

With the development of productivity and technology, the demand for water operations has increased. The "dive technology" he has spent countless funds to study was originally about to hide the birds as the war ended, but now it has a "second spring", which is really unexpected.
Chapter completed!