Steel steam and flame

No. 1 did not need to convey the content. They all stood aside and did not use code words. Cassia and the others heard it very clearly.

"It should be an established process. I won't say anything more. Everyone knows it. The laboratory has asked us to decide on a sequence ourselves. Then we will follow our respective numbers. I wonder if you have any better opinions." After the contact was cut off, Number 1 looked at the other three and said, his face always serious.

Silence represents acquiescence. No. 1 nodded to himself, and when he wanted to explain something, the printer connected to the communication machine beeped, and a piece of paper with material requirements stretched out. However, there is no specific name of the goods on it. They are all labeled with the goods number.

The prompt was to be delivered tomorrow morning. No. 1 put the paper away, ignored the looks of others, and went back to his room. Cassia also turned and left. He thought for a while, knowing what was going on here, but the focus was still on the glass test tubes that shattered the foundation of his detection laboratory two or three days ago.

"Is it considered to be another reason?" Back in the room, Cassia chose to empty her head and continue to study high-frequency sound waves, which are also ultrasound waves. Cassia has full theoretical knowledge preparation, how to improve the utilization of high-frequency sound waves, how to control it, etc., Cassia has traces to follow. However, there will definitely be some difficulties in the specific implementation. Currently, we cannot practice casually in this small building. We can only rely on thinking as much as possible to complete the details of each link so that we can make the experiment one step further during the short patrol time every day. success.

Life suddenly regained its order. The next day, No. 1 went to the warehouse on time at nine o'clock in the morning. He opened the tight alloy protection door of the warehouse with the real-time password given by the laboratory base. After taking out the materials from inside, he took the tunnel according to the information handed over on No. 5. The transportation vehicle inside went to the cavity at the end.

Everyone knows what's going on, but when it's the first time to deliver supplies, No. 1 will inevitably not become the object of other people's attention. In the sound wave pulse, both No. 2 and No. 3 released their perceptions to collect as much information as possible. But after all, they have never been inside the tunnel. They cannot have a rough estimate like Cassia about what is going on inside and what the specific process will be. They can only rely on imagination.

The incident on No. 1 was a minor episode and failed to affect Cassia. After resting at six o'clock every morning, basic washing and warm-up were completed. At six thirty, Cassia left the small building on time and followed the established route to explore the town. In just a few days, Cassia has already become extremely familiar with the town. Some protection personnel dressed as soldiers were also observed one by one. A patrol originally took two hours, but Cassia extended it by one hour because of training on high-frequency sound waves. After the people in the small building showed no reaction, Cassia extended the patrol time to four hours the next day, purposefully practicing the control of high-frequency sound waves.

After high-frequency sound waves had a certain directionality, Cassia began to study how to reduce the arc in the direction to make the accuracy as small as possible. The current direction is a sixty-degree arc. After only one day of practice, Cassia can switch between fifteen degrees and three hundred and sixty degrees at will. But it is far from Cassia's own goal.

The desired result is that high-frequency sound waves can be like a strong light flashlight, almost condensing the light into substance and pointing it in any direction at will. If the diameter range of high-frequency sound waves can be controlled within ten centimeters, no matter it is vibration caused by high frequency, or the impact caused by extremely high pressure caused by sound waves on the air, or the spontaneous destruction of matter caused by the high frequency of sound waves, Shock, etc., can achieve considerable power. At present, in addition to shattering some ordinary glass products, the power of high-frequency sound waves can also cause water enveloped by sound waves to break into a mist.

As for the impact effect, it is common for the river surface to explode. It's just that freedom is restricted in this small town. Cassia can't find a suitable position to test her current limits, so she can only consider the issues of convergence accuracy and control first.

On the third day after No. 1 delivered the supplies to the laboratory base, No. 2 received the name and quantity of the supplies and went there at the same time in the morning.

Three days ago, No. 1 who went out in the morning returned from the tunnel in the evening. There are no changes in expressions. The four of them are like air, and there is no exchange of information. The rest is all up to everyone's imagination. But the period between No. 1's passing and return has naturally become the standard.

I wonder what I will see and do when I go to the laboratory base. Test? Study? The organization's laboratory is an unknown thing in the minds of the four people, and the other three know it better than Cassia. If the organization is divided into several parts, the laboratory base is tantamount to occupying the largest part. It would be too much to think that other departments serve the laboratory, but in fact, most tasks and things are related to the laboratory base. This is undeniable.

Cassia has no interest in these. He knows that his route in the organization has been arranged, and as long as there are no big problems in the middle, that route will not be suddenly disconnected. The person behind Adolf is definitely one of the top leaders of the organization, which makes all his worries seem a bit like a child's fear of having his toys taken away by adults.

Still following the established rules of life, high-frequency sound waves are increasing their control proficiency at a visible speed every day, which is enough for Cassia to be happy.

Nine days later, Cassia and No. 3 happened to be handed over to patrol at night. There are relatively more things going on at night, with the number of patrol circles reduced to two, and the range is about 1.5 times that of the day. Just in line with what Cassia meant, the quietness at night and the large area allowed him to experiment with some methods that he had concerns about during the day.

During the trip, I was only in the small building from 1 to 3 in the morning. After getting used to the atmosphere in the small building, Cassia understood what she was doing, and the other three people probably wouldn't ask anything.

In nine days, compared to before, the progress at this moment has made the use of high-frequency sound waves into a different state. At four in the morning, Cassia, who had completed her last patrol, determined the locations of the other three people and went to the river bank on the edge of the town. Water became the most suitable test object, because there was no need to worry about leaving traces of damage, and at best it could make a little noise.

A circle that was slanted fifteen degrees downward and fifty centimeters in diameter. Cassia set a corresponding standard for herself, then turned her back to the river and only turned her head to look there. Under the pale, not very bright moonlight, waves of rapidly spreading ripples suddenly appeared on the calmly flowing river, spreading to both sides, like a huge fish under the water breaking the river surface with its fins.

The next moment, these ripples became more violent, and countless water droplets rose up from the river surface like boiling. The water droplets formed a spiral shape and were dragged by invisible forces to float about ten centimeters high on the surface of the water. When the sound of "buzzing" reverberated in the quiet night, a slightly downward circular cavity suddenly appeared on the river, directly dividing the river more than ten meters long. The cylindrical cavity is filled with thick water mist. The river water is attracted and pours into the cylinder from around the cylindrical cavity. However, when it enters the range of the cylinder, the river water is shaken into water mist at an extremely fast speed, and then follows. It rushed forward with the column and bombarded the bottom of the river bed.

A turbid bulge surged up on the river surface more than ten meters away at the same time. It was an outward swirling whirlpool. Countless water mist emerged from there, spreading like a thick sheet of steam on the river surface. Ten seconds later, Cassia, who had confirmed the result, stopped emitting high-frequency sound waves. The cylindrical cavity disappeared instantly and was filled with river water. Only a piece of the still boiling river surface gradually returned to calm.

"It seems to be affected by the medium." Cassia said to herself by the river. All the experimental scenes were captured and recorded in her head, which can be recalled at any time for observation and analysis.

As he spoke, he looked towards the open space on the other side of the river. As far as the eye could reach, after sensing the distance alone, there was a sound of "whooshing" wind. More than one meter in front of Cassia, a translucent cylindrical air channel with a diameter of fifty centimeters suddenly formed, and instantly hit the distance at an extremely fast speed.

High-frequency sound waves drive the air to form, which is a visible solid air tunnel, round and with jet-like streamlined lines on its surface. Just like a columnar body that has gravity and will never be filled, the surrounding air is sucked into the air tunnel under the pressure difference brought by the speed, gathers inside it, and shoots forward. As a result, turbulent airflow forms in the surrounding area in the blink of an eye.

It might be more vivid to call the air tunnel called air shock wave, Cassia thought. His original intention was to form such an attack method. The translucent air channel rushed forward for about fifty meters and began to disperse. The round cylinder finally expanded sharply and became a trumpet. The compressed air dispersed and brought a gust of wind, and finally slowly dispersed and returned to calm.

There will be considerable impact force at close range, but when the distance is too long, the fineness of control will always cause these forces to disperse. The specific phenomenon is that the air shock wave cylinder that just collapsed and disintegrated no longer has any effect except raising a gust of wind.

There are many problems in control. Cassia wants to condense the high-frequency sound waves into a ballistic line as thick as a ballistic line, and launch bullet-like attacks unexpectedly by the enemy. It certainly can't break bones, but when it hits the eyes, heart, throat, various organs of the body, etc., it's enough to cause huge damage.

The process of achieving this power is still relatively long, requiring extreme control, and high-frequency sound waves themselves contain extremely high energy. The vibration in the throat will become a key point. Cassia has seen his approximate limit position in these nine days. The upper limit is to use the air impact driven by the high-frequency sound wave beam to destroy the wall of an ordinary building. For the surgeon, this is an attack that does not require defense or concern.

At present, using high-frequency sound waves to destroy the balance system of the enemy's body is the most effective means of attack in a short period of time.

After the restlessness around him subsided and Cassia checked the surrounding area and found no suspicious phenomena, he returned to the small building. There is no mistake in the time. At nine o'clock tomorrow morning, it will be the time for him to transport the supplies to the laboratory base. Cassia is very interested in what is in the laboratory and what she will experience after passing there. He also wanted to know why the numerous laboratories that existed throughout the small country, as the core of the organization, were conducting long-term experiments and research.

After resting for two or three hours, at 8:30 in the morning, Cassia waited for the list of supplies at the printer in the lobby. After that, she got the real-time password, went to the warehouse, took out the corresponding supplies, and placed them neatly in a mobile cart that looked like a mine cart. Entering the mobile car, Cassia pressed the start button, and a string of lights in the tunnel lit up in sequence, and there were also two bright searchlights on the car. Slowly increasing the speed, the car followed the track to the cavity fourteen kilometers away.

Everything was standardized like a program. All Cassia did was to move things from the warehouse into the cart, and then move them from the cart to the metal pallet that had been placed in the cavity. There was a prompt on the tray for the visitor to wait here. After a few minutes, the sound of the elevator made Cassia look at the safety door that slowly opened.

A thin man with glasses and a white protective suit pushed a simple lifting trolley to transport the metal pallet into the elevator. At the same time, he motioned for Cassia to go back with him.

"Don't wander around after you get there, just follow me." The skinny man said.

"Is there an established procedure?" Cassia replied, and the thin man looked over with a smile. "Among the four, you are the only one who answered me."

Cassia cast a confused look and figured it out in an instant. The other three people have been in the organization for many years. Compared with him, who just joined the organization and Adolf gave him very little information, their work style will definitely be different. Without answering, Cassia pursed her lips and silently counted the height of the elevator's descent.

The scene here naturally showed a sense of unfamiliarity. Cassia focused her eyes on the thin man in front of her, but she also naturally looked elsewhere with her peripheral vision, completing what she saw through the sonic detection ten days ago. The thin man relied on the password card and password instructions to open the door in front of him, and the warm air of the constant temperature room rushed out. The laboratory always has a monotonous cold light, a metal floor, a square passage, and large and small rooms on both sides of the passage.

Cassia tried her best to control her strength and prevent her abnormal weight from showing up. After walking a little distance, the skinny man pushed a pile of supplies to the fork of the passage and asked Cassia to wait here for a short while.

After the skinny man disappeared behind a pneumatic gate, Cassia turned her head and looked around. After thinking about it, the sound wave pulses spread out and immediately filled her head with the outlines of most of the surrounding buildings.

At the same time, in the extremely quiet room on the other side, Professor Mosier, Bennett, and another researcher stood still in their seats like statues. Breathing and heartbeat were suppressed. The three of them looked at the silent time counter on the wall, waiting for something.

Suddenly, at the table where three people were sitting, a small sound of "sizzling" came from a metal box. But a satisfied smile suddenly appeared on Professor Mosier's face. He immediately stood up, opened the metal box, and took out the monitor that was vibrating slightly inside.

"Bennett, go to Zagavar and bring him over. We'll wait for him in the conference room."