04. Chicken farms and computers
Chen He said: "Comrade Kahesha, the most taboo thing for us people in Northeast China is biochemical viruses. If there is still a dog who dares to mention this stubble, Lao Tzu is not afraid to die, so he will fight with him! But what is that...... Dealing with viruses doesn't sound like a big deal, and I don't think there's a need to make a big fuss about setting fire to the forest. Anyway, I received your warning, and I will tell the residents to be more careful in the future, and run less into the birch forest if you have nothing to do, so you are satisfied, right? ”
This kind of understatement tone was completely perfunctory, and Kahesha was very frustrated when she heard it, blaming herself for being too impatient just now, so that she had taken the risk of saying it, and now if she wants to explain, she is afraid that Chen He will not listen to it.
But she is persistent by nature, even if Chen He refuses, she has to explain it clearly, and what she said later, if it is placed in thirty years, mankind has entered a highly developed information age, Chen He is only afraid that he will be frightened more fatally than the biochemical virus.
However, for "computers", people of that era did not even have the most basic concepts, how could they associate themselves with any logical operations, CPUs or kernel chips? The truth is that the more professional Kahesha speaks, the less Chen He takes her words seriously.
Fortunately, Kahesha was smart and realized his mistake in time, and made a vivid analogy to Chen He: Chen He raised twenty hens and could collect twenty eggs a day, so his family was in the initial stage of making a fortune.
Chen He realized that as long as he increased the number of hens, he could get more eggs and sell them for more money. But how can the number of hens increase? The source, of course, was the eggs in his hand, so he divided the twenty eggs into two parts, one part hatched into chickens, and the other part was sold for money. The process of incubating chicks can be regarded as an input, and the process of selling eggs can be regarded as an output, distributing the two parts of eggs in the most appropriate proportion, so as to maximize the benefits, which is a logical operation to optimize resources.
When all the inputs and outputs are applied to logical operations, the eggs and chickens have to be represented by numbers, and the data flow is generated. When the number of chickens and eggs doubles, the complexity of the data calculation increases by one level, and if you think of the data stream as a belt, the belt will widen from the first thin line to the number.
Finally, raising and selling chickens is Chen He's own business, and has nothing to do with other people's families, so his chicken farm is equivalent to a database that stores data, providing two data resources, chickens and eggs, for logical operations.
Kahesha kept the lesson of talking to himself endlessly, but it turned out to be counterproductive, and he stopped at the key point, and looked at Chen He with long eyelashes flashing.
With such a simple analogy, Chen He naturally understood it, but he couldn't figure out the other party's intentions. In order to end the conversation quickly, he had to nod his head in understanding.
Kahesha breathed a sigh of relief, frowned in disgust for a moment, and said in an accentuated tone: "But you have a neighbor named Ermazi, who is usually lazy and doesn't do his job, and as a result, he doesn't even have a house to live in, so he is jealous of you, intending to destroy your chicken farm, and finally kill you." What should he do to achieve his goal? ”
At this point, the words gradually became bloody, Chen He was excited, his boredom subsided slightly, and his attention began to concentrate.
Kahesha struck while the iron was hot: "Blatantly killing people and setting fires, Er Mazi didn't have that ability, so he tried his best to put a poisonous insect into your chicken farm, and first made a chicken sick." The chicken did not die immediately after being infected with the virus, but ran around like crazy, spreading the virus, and then slowly died. Let's assume that chickens are numbers, so the numbers in your database start to mess up and decrease, the logical operation can no longer continue, and the entire computing system collapses due to attacks. Because there are so many chickens, you don't care about it at first, but when the chicken plague breaks out on a large scale, you don't have time to take measures to remedy it. The most frightening thing is that chicken plague can also spread to the surrounding area, and any chicken farm adjacent to you, as well as people who have eaten chicken, can be infected and they can be seen as other databases connected to your chicken system. The end result is that Er Mazi not only ruined you, but also caused a large area of destruction through you! ”
After giving the example vividly, Kahesha stopped her voice, leaving time for Chen He to chew and digest. There was silence in the office for a while, but Chen He seemed to hear the remaining three fireflies, struggling in the glass bottle and calling for help.
"According to your analogy, poisonous insects can kill chickens and kill people, isn't it something like a biochemical virus? But how can the big fireflies I see since I was a child become poisonous insects? ”
The honest Northeast man has only one tendon in his head, and he always wants to put fictional analogies on the real thing.
This time, Kahesha was not discouraged, but solemnly and patiently answered: "The reason why the end of the firefly's abdomen can fluoresce yellow-green is because of the luminescent cells in the body. Luciferin is catalyzed by luciferase and luciferase, which consumes ATP, or adenine nucleoside triphosphate, and reacts with oxygen to produce an excited state of oxidized luciferin. When oxidized fluorescein returns from the excited state to the ground state, it releases photons, which we can see emitting. ”
Chen He's eyes were not big, but at this time, his eyes were round, as if he was staring at aliens. Kahesha immediately realized that she had made another nerd mistake, complicated the explanation, and was so anxious that she stomped her feet and hurried down from the academic peak.
"In short, fireflies rely on luciferase and luciferin to emit light, but the luciferase in these fireflies is taken away and will no longer catalyze luciferin. They can still emit light because of a metallic hydrogen chip in their belly pouch. The chip is protected by fluorescein, so it does not react with oxygen, and it appears solid. But once the belly pouch is opened and oxygen enters, the chips will be neutralized into the droplets of water you just saw. The droplet may seem simple, but it is actually a weapon that can be controlled remotely, destroying all the microcomputer detectors released into the woods, leaving your town unprotected and eventually a dead town! ”
Chen He didn't understand the profound scientific knowledge, but he was not stupid and understood that the best way to keep up with Kahesha's rhythm was to capture the main points from her words. The word "weapon" grabbed his heart at once, and he had to nervously ask him.
After a long time, he finally caught the attention of the mayor, and Kahesha was not only relieved, but also had a strange flash of cunning in his eyes. Chen He was confused in the face of the sudden crisis, and he didn't pay much attention, but when Kahesha subconsciously brushed the blonde hair from his ear with his hand, he vaguely saw a scar similar to that of a soldering iron, which was burned in the middle of his temple.
"Who would get hurt in that kind of place?" Chen He thought curiously, but he didn't have time to delve into it.