Doomsday Bunker Upgrade

Although she was a little confused by Chen Xin's question, Mo Qingyan still answered his question: "Plants? Photosynthesis? There is a green plant box in my bedroom. Why do you suddenly ask this for ingredients? "

"The sky is covered by dust clouds and the sunlight is lost. What do plants rely on for photosynthesis? Without photosynthesis, where does the oxygen in the atmosphere come from?" Chen Xin's voice was very flat, just telling a fact, but it made Mo Qing Yan felt a heartbeat: "Although 70% of the oxygen in the atmosphere comes from the marine ecosystem, even algae need sunlight to produce oxygen, and now there is no sunlight."

"You mean, will there be no oxygen in the atmosphere?" Mo Qingyan asked Chen Xin with a little panic.

Although Mo Qingyan couldn't see it, Chen Xin nodded: "If the conversion of carbon dioxide by photosynthesis in the ecosystem is lost, the carbon dioxide concentration in the atmosphere will soon increase, while the oxygen content will continue to decrease. No need to wait for the oxygen to disappear, and the oxygen content in the atmosphere is less than 10%, and human beings should be suffocated to death.”

"Ah! What should we do then?" Mo Qingyan hurriedly asked Chen Xin for help, her tone was full of panic.

In the face of this kind of planetary disaster or environmental catastrophe, the power of an individual has no possibility of making any changes. After all, this book is just a slightly unorthodox science fiction novel, not a strange force, even the basic laws of physics. Untold fantasy novels.

"Growing grass is a solution to the problem." Chen Xin said half jokingly and half seriously, and then explained: "Since you have a green plant box, this problem is actually not difficult to solve. The required oxygen requires about 10,000 leaves of average size for photosynthesis, and if a tomato with 250 leaves is calculated, you need about 40 tomatoes, covering an area of ​​about 50 square meters.”

Having said this, Chen Xin smiled. It was the first time he saw Mo Qingyan panicking, and after laughing, he continued: "So as long as you build a large enough greenhouse in your basement, it will be enough. Guarantee the oxygen you need in your daily life, and also provide you with enough vegetables and food."

"Ah! That's how it is! So it's no wonder that when Aning and I went to your place last time, I thought you weren't stuffy at all! It's not because the ventilation is good, but because there are plants in your place that are producing oxygen!" Mo Qingyan heard Chen Xin said that, and finally reacted.

At the same time, Mo Qingyan, who had reacted to this incident, also realized that during this period of time, she felt that the air in the bedroom was good not because the bedroom was well ventilated, but because of the green planting box in the bedroom where she had been turning on the fill light.

But this situation made Mo Qingyan have new worries. She asked Chen Xin: "A Xin, what about the shelter? There are tens of thousands of people living in the government shelter. If there is a lack of oxygen, wouldn't they all die? ?"

"You can think of this problem, do you think the country can't think of it? The government should have a response plan." Chen Xin is not worried about this. He doesn't think the country will ignore this problem like himself.

If there are so many experts and scholars in the country who can't come up with a disaster response plan that can at least deal with most problems despite the three-month advance warning of the disaster, then this group of people is definitely a vegetarian meal.

Hearing Chen Xin say this, Mo Qingyan also found that she was unfounded. If there is nothing to do with this kind of cataclysmic country that involves everyone, she can't do anything by herself.

However, Mo Qingyan still asked Chen Xin: "The government's refuge is all over the country, so what about our private refuge? Ah Xin, it's not a big problem for you to have a greenhouse there. What should I do? No, I really want it. Take Aning and Qingxin to your place?"

"This matter is not difficult to solve. If I had realized this problem in advance, a few fill lights and a few water tanks could solve the problem before the disaster, but now..." Chen Xin hesitated, but still right Mo Qingyan said: "You can try to build a large water tank to keep algae. The metabolism of algae is very fast. Under the condition of ensuring light, it can release oxygen quickly, which is more efficient than plants.

It's just that this will consume a lot of water and electricity to provide light, but the city government is still supplying water and electricity, so it's no problem to ensure the survival needs of the three of you. "

"Raising algae? How to do this?" When Mo Qingyan heard what Chen Xin said, she put down her worries and asked how to keep algae instead.

"Raise it with a grille, keep the surface moist, and then continue to illuminate it with a fill light." While talking to Mo Qingyan, Chen Xin turned on the computer and searched for the information inside.

Chen Xin remembered that when he was writing a book before, he found a document on the German Ecological Laboratory Building, which introduced that the Germans used algae to make the biological facade of the building, and cultivated biomass through photosynthesis for biogas reaction. The carbon dioxide generated by biogas power generation is supplied to the biological facade for recycling.

The main factor for the establishment of this cycle is that sunlight promotes algae to photosynthesize and reproduce in large numbers.

However, in this way, biogas power generation with biomass produced by algae is definitely not enough for the consumption of supplementary lights, and additional energy consumption needs to be supplemented.

Fortunately, Mo Qingyan didn't have water and electricity cuts. As long as the supply of water and electricity was guaranteed, if she came up with such a set of equipment, she could still ensure the survival needs of her, Mo Qingxin and Ding Ning.

Chen Xin explained to Mo Qingyan the principle of the whole system and how to make it roughly, and Mo Qingyan also recorded everything Chen Xin said, and planned to make a set like this in her shelter when she came back. equipment to produce biological oxygen.

"Thank you Ah Xin! If you hadn't reminded me, I'd have to suffocate to death to realize this problem." Mo Qingyan thanked Chen Xin and said, "Aren't you thinking about my wine? I'll give you another box of golden rum later, even if I exchange these materials with you."

Hearing what Mo Qingyan said, Chen Xin couldn't help but feel a little surprised: "Is it necessary to be so clear with me?"

"People say that our brothers are still clear. Even if we are brothers, it's better to be clear." Although Mo Qingyan said this with a smile, she was extra serious: "Although you say Ah Xin, you don't mind. I took advantage of you, but in this apocalypse now, everyone should be clear about it so that there will be no conflicts."

Hearing what Mo Qingyan said, Chen Xin didn't raise any objections, just chatted with her again about whether to tell the people in the survival group, and then said to her: "By the way, Long Niang, help me tell Alan. Just say that I found survivors in a supermarket in the direction of the high-speed rail station..."

Someone is actually brushing in the book review area, I really... my scalp is cold, what the fuck!

You have to say that in this apocalypse, everyone can understand that a girl can't be offended, people are filthy, and there will always be something that breaks the lower limit, but it's fine if you treat people like you can't offend, you still deserve it.

In ancient times, it was called no way, you are directly treating people as livestock, beasts!