Chapter 194: Optical Signals

The reason why Zhao Lan felt pain and self-blame was naturally because he didn't come up with the method of separating the maintenance module from the hydrogen bomb spacecraft earlier. If you can think of this method an hour earlier, no, as long as you think of this method half an hour earlier, the distance between the maintenance module and the hydrogen bomb spacecraft will be extended to more than 50 kilometers, and according to the damage to the maintenance module at the current distance as the calculation base, if the distance can be extended to more than 50 kilometers, then the damage suffered by the maintenance module will be completely within the range of bearing.

That's why Zhao Lan blames herself and suffers so much. Because Zhao Lan thinks that he caused the current consequences, he buried everyone's lives. In this case, the little flash of light that appeared in the depths of Zhao Lan's soul made Zhao Lan feel as if he had grasped a life-saving straw, and he felt that his spirit was suddenly uplifted.

Zhao Lan didn't find a specific way to deal with it, but that flash of inspiration made Zhao Lan realize that it was not a complete desperate situation now. I still have a chance to solve the problem.

So...... How, exactly?

Zhao Lan began to carefully analyze the predicament he was facing. Zhao Lan classified and sorted out the complicated affairs, and summarized them one by one according to logical thinking, and in the end, Zhao Lan divided all the dilemmas he is facing now into two.

The first dilemma is how to survive in this broken maintenance cabin for more than half an hour. Because only after half an hour will the military's spacecraft be able to come to their rescue.

Faced with this problem, the result of Zhao Lan's thinking was that there was no way. But just because you can't do it doesn't mean you can't survive this time. The air purification circulatory system has stopped working, that ...... Can the existing air reserve in the maintenance compartment last for half an hour? The insulation system has failed, and the temperature in the repair compartment will quickly drop, then under low temperatures. Can he and An Liya support more than half an hour?

These are uncertain, and uncertainty means not necessarily to live, but not necessarily to die either.

The second dilemma is how to send a signal to the military combat ships that arrive after them, so that they can find themselves.

Zhao Lan is facing only these two dilemmas at the moment. The first dilemma Zhao Lan chose to leave it to luck, or fate to choose, and the second dilemma will not work. Zhao Lan had to find a way. After the arrival of the military's combat spacecraft, send them a message so that they can come to their rescue. If there is no information, there will be no rescue, and even if it can last for more than half an hour under the rising carbon dioxide concentration and low temperatures, everyone will be greeted with death.

So the crux of the matter comes here, that is, how do you get the message across?

As long as a way to deliver a message for help, there is hope for everyone to continue to live. If there is no way to deliver a distress message, everyone will die here.

Now. Cruise's lighter had gone out, and the maintenance bay was once again completely dark. In this completely dark environment, Zhao Lan's brain was running at a high speed.

This is a dark and empty cosmic space. Zhao Lan and the others were riding in the maintenance cabin of a hydrogen bomb spaceship that had lost its power supply. The pit has no power and is unable to autonomously accelerate or slow down or change course. This means that Zhao Lan can hardly do anything.

But the little bit of aura that appeared just now made Zhao Lan realize that something must have been forgotten by him, and there must be a way to achieve the purpose of transmitting information.

Zhao Lan shrank in the corner of the maintenance cabin, thinking hard about this question.

How do you get your message across? How do you deliver a message in this empty and dark universe?

The answer can only be through electromagnetic waves. Radio signals are also a type of electromagnetic wave. But now the radio equipment is no longer available. So, what about electromagnetic waves in addition to radio signals?

A noun flashed in Zhao Lan's mind. Zhao Lan thought of a word, and this word was, visible light.

Visible light can certainly be used to transmit signals. In ancient times, when the beacon fire was lit, people in distant places could see the smoke column and get an early warning, which was strictly speaking, it was actually using visible light to transmit information. The lighthouse of modern times, neon. Signboards can also be counted as examples of visible light transmitting information.

So...... How do I get visible light? Don't forget that the lighting in the maintenance bay is no longer usable due to the loss of energy supply.

Then the crux of the matter comes to the energy supply. Zhao Lan continued to think hard and think hard...... Then, it was as if a long-suppressed thought suddenly exploded. Zhao Lan suddenly thought of a possibility.

This maintenance cabin was also designed and built under the leadership of Zhao Lan, and Zhao Lan was familiar with every part of its structure. So now Zhao Lan suddenly remembered that a small battery is installed in the filter module of the air circulation system, and it is not necessary to go outside the cabin to remove it, and this task can be completed in the cabin. Although the air circulation purification system was destroyed, there is a good chance that the small battery is still intact. As long as you remove it and connect it to the lighting system, will the light be restored to the maintenance cabin? As long as the maintenance pod can return to light, and then control it to flicker and flicker according to certain rules, then it is very likely to attract the attention of nearby ships. While the chances of attracting attention are still much smaller than calling directly over the radio, this ...... It's all hope, isn't it?

Zhao Lan, who understood this, immediately recovered his spirits. Zhao Lan said eagerly: "Cruise, Cruise, I have thought of a way that you need to try, there is a small battery in the filter module of the air circulation purification system, I want you to remove it, and then connect it to the lighting equipment, and when the military's spacecraft comes within a certain distance from us, we can ask the military for help through visible light!" ”

Cruise immediately said, "Can it be disassembled in the maintenance compartment?" ”

"Yes!" Zhao Lan gave an affirmative answer, "You don't need to leave the warehouse to disassemble it!" ”

Suddenly, there was hope again, and An Liya's voice began to become urgent: "Zhao Lan, you hurry up and point out the location, Cruise, it's time to show your mechanical genius strength!" ”

"Leave it to me." Cruise replied briefly, found the place under Zhao Lan's guidance, and immediately started working.

Cruise's fingers were thick and short, but they were unusually flexible. He dismantled the battery without the help of any tools, and immediately after doing this, Cruise opened the cover of the main light, then pulled the wiring straight out and cut it off.

"I needed to make a small transformer to solve the voltage asymmetry between the battery and the lamp." Cruise whispered, "It's going to take ten minutes." ”

"It is expected that the military spacecraft will be within fifty kilometers of our perimeter in fifteen minutes." Zhao Lan also replied in a low voice, "This is the limit distance, in order to prevent being affected by the residual radiation of the hydrogen bomb explosion, they will definitely not get any closer." The exact length of their stay here is unknown, but it is not expected to last more than ten minutes. This is our last chance. ”

"Okay." Cruise said yes and immediately got busy. Under the dexterous operation of Cruise's hands, a strange thing gradually took shape, it was very rough and messy, and even its wiring was simply screwed together without any welding or isolation, but after the wiring of the main light was connected to it, the light turned on.

Zhao Lan's spirit immediately perked up, but the next moment the lights went out, and darkness returned to the maintenance cabin again.

"What's wrong?" Zhao Lan asked in a low voice.

"The battery has a limited amount of power, and it can only hold the lights on for a minute at most." Cruise replied, "That was just a test to see if it would work." ”

"Okay, let's start waiting." Zhao Lan said.

The battery can only support one minute, so Zhao Lan and the others naturally refuse to waste this precious lighting time now. It is most appropriate to turn on the lights after the military spacecraft has come close to a certain distance.

Then now we really have to start waiting.

"Try to slow down your breathing and don't make big movements, so that you can save oxygen. Also, let's get together, the temperature is getting colder, and everyone getting together helps keep warm. Zhao Lan said.

So An Liya and Cruise gathered together towards Zhao Lan. Zhao Lan put Zhou Xiaoming, who had passed out in the middle, and the three people who were still awake surrounded Zhou Xiaoming, trying to warm Zhou Xiaoming's body with their body heat.

In the near-absolute darkness, the passage of time seemed to slow down. It was quiet, so quiet that Zhao Lan could almost hear his heartbeat and breathing. The sound of the heartbeat and breathing seemed to have a wonderful rhythm, and under the sound of the beating heart, people felt a dizzy urge to fall asleep.

So Zhao Lan realized that the carbon dioxide concentration in the maintenance cabin must have risen to a very high level, and he had already shown slight signs of carbon dioxide poisoning. It won't work like this, Zhao Lan knows that as long as he sleeps, he will definitely not wake up.

So Zhao Lan opened her mouth and said slowly: "Idle is idle, let's chat?" Anlia, how did you join the Adventurer Squad in the first place? Cruise, what about you? (To be continued......)