The human brain is divided into the left hemisphere and the right hemisphere. The two hemispheres are connected by a "corpus callosum" composed of about 200 million nerve fibers. This bundle of nerve fibers is located in the very center of the brain and is arched in cross-section.

If the corpus callosum is removed, the connection between the two hemispheres of the brain will be severed. In other words, if you want to study the function of a single hemisphere, you only need to remove a person's corpus callosum.

Of course, it would be too inhumane to remove someone's corpus callosum for the sake of research. But there are people in the world who really don't have a corpus callosum at all. Among such people, there is a large group of people who have epilepsy that cannot be controlled by medicine at the time, so they have to be treated by cutting off the corpus callosum.

This type of person who does not have a corpus callosum is called a "split brain".

In the 60s of the 20th century, Sperry, a professor in the Department of Biology at the University of California, conducted a series of experiments on split-brain people.

If an image is placed on the left or right side of the split-brain person, the visual signal will first be transmitted to the corresponding side of the brain hemisphere. Sperry's original test project was to have people with split brains who were willing to participate in the test sit in front of a wooden plank. This board has a row of light bulbs arranged horizontally. These bulbs will flash on his left and right sides.

When the researchers asked the subjects to report what they saw, they all said they only saw the light bulb flickering on the right.

Subsequently, the researchers had the light bulb on the left side of the subject's field of view blink separately. And this time, they didn't react at all.

The only plausible explanation seems to be that the right hemisphere of the brain, which is responsible for the left visual field, is not able to process this visual signal and is a "blind spot".

But the experiments that followed overturned this explanation. When the researchers asked the subjects to identify all the blinking light bulbs, their hands pinpointed the blinking light bulbs on the left side, despite saying "only the right side was flickering", which was obviously statistically significant.

In other words, the right hemisphere can actually see and process visual signals. However, this visual signal cannot enter the language function and be transformed into expressive sentences.

Subjects with split brains, even though they see a light bulb flashing on the left side, are unable to tell.

This is because the right brain is not responsible for language function.

Another experiment by Sperry was to ask the subjects to use their left and right hands to copy simple three-dimensional drawings (such as cubes), and their left hand could basically complete the task, but the right hand could only draw a bunch of incomprehensible two-dimensional lines, without the slightest "three-dimensional sense".

This is because the left brain is not responsible for "spatial imagination" – that's the right brain's job.

Roger Sperry was awarded the Nobel Prize in Physiology and Medicine in 1981 for this experiment, and a series of subsequent studies. The Caltech journal dedicated a message to him: "Sperry, congratulations to the left and right hemispheres of your brain!"

Of course, the results of this research have also received criticism from the academic community in the future. These criticisms focus on the idea of unilateralization of the function of the left and right hemispheres of the brain and the form in which this view is expressed to the general public and the media.

In fact, Sperry's own experiments show that the right hemisphere is not completely incapable of understanding language, but that the way it understands it is very different from that of the left. And this right hemisphere's perception of language may also be an important part of ordinary people's language cognition.

Normal people don't have only one brain, and they don't have two brains. The left and right hemispheres just have their own emphasis.

When a person reads a story, the left hemisphere of the brain understands the written language. Extract meaning from the arrangement of words and sentences, and translate linguistic symbols into speech so that they can be understood in consciousness. The right hemisphere, on the other hand, is responsible for understanding the emotional expression of the story, imagining its specific visual situation, and forming an overall impression of the story's style.

This is the complete workings of the brain.

And the same is true of cyber martial arts.

What is needed is the intuitive imagination of geometric problems and the arrangement of tactics.

The internal power is integrated with the language function.

Therefore, for beginners, the arrangement of the chip in the brain is recommended for the internal power of the left hemisphere and the outer door of the right hemisphere. But that doesn't mean you only need half your brain to handle all the adversarial games. In particular, the high and profound internal strength will definitely involve the functions of the whole brain. However, I still recommend placing the internal power chip on the left side of the brain. ”

Xiang Shan said seriously.

Yuki looked at Xiang Shan, his body trembled, and he couldn't help but want to laugh.

Xiang Shan sighed: "Didn't I explain clearly enough just now?" ”

Yuki nodded: "It's clear. ”

"So I'm rearranging the electronic part of the cranial cavity, is there a problem?"

Yuki shook his head.

"And what are you laughing at?"

"I'm sorry Master......" Yuki twitched, "the way you tied your skull with a wire...... I remembered that you used a kettle lid as a headlid. ”

Xiang Shan was furious: "What's wrong with the kettle lid?" And it's just stopgap! I'm going to get a better skull right now, you know? ”

His wire was still pulled from the prosthetic remains of the little poisonous insect.

Yuki nodded hurriedly.

"You can't teach a child." Shaking his head towards the mountain, he walked towards the underground part.

Organization Z has biorefinery tanks and furnaces, and can refine some metals and silicon on its own. But these things have to be processed before they can be converted into usable resources.

This kind of processed prop is 3D printing technology.

3D printing, also known as additive manufacturing, is a technology that uses adhesive materials such as powdered metal or plastic to construct objects based on digital model files by printing them layer by layer. To put it simply, as long as the corresponding materials are prepared and the digital model is ready, it can quickly produce props of any shape.

The "material" here can even be a living biological cell. In November 2012, Scottish scientists used human cells to print artificial liver tissue with a 3D printer for the first time.

Compared with the traditional industry, subtractive manufacturing, where the approximate shape is produced and the more parts are cut off with a tool, it is more resource-efficient.

More important, though, is the flexibility of 3D printing technology. This technology produces parts, unlike traditional industries, which require a variety of corresponding molds, and one machine can produce countless kinds of parts.

Compared with the physical mold, the "digital model" can be said to be a kind of almost "no cost" thing.

As long as you are willing to share.

Hearing this, Yuki nodded: "This seems to be similar to 'martial arts'......"

"Yes. A digital model is a kind of 'information'. There are almost no costs other than the small amount of electricity that is used to 'enter' and 'erase'. Xiang Shan sighed: "Information should be the lowest-cost thing in the information age. It's a pity that some rules specified by powerful people make this kind of information impossible to share. The wealth and advantages they have accumulated in the past era can be perpetuated for ......"

Xiang Shan was a little distracted. If it weren't for the fact that this extremely simple voice system couldn't express his complex emotions now, maybe Yuki would have heard the abnormality of his tone at the moment.

Xiang Shan always felt that when he talked about this topic, he seemed to be abnormal...... Unusual ......

"Master, that's the 3D printer you said!" Yuki pointed excitedly ahead.

Xiang Shan came back to his senses and nodded.

In front of the master and apprentice, there are three 3D printers of different specifications. One is larger and more high-end, and two are smaller.

Xiang Shan is still concocting the same method, testing this 3D printer.

Three robotic arms hang from above the printer, each of which has dozens of nanoscale nozzles connected to thin tubes. These nozzles emit nanometers evenly in mid-air. The magnetic field precisely restricts the movement of metal powders. Another robotic arm at the top hangs down, and a micron-radius mechanism heats the parts. Subsequently, another robotic arm emits high-frequency mechanical waves, causing a certain periodic motion through the condensation process of the metal, controlling the arrangement of the alloy crystals.

A small part is made in an instant.

Xiang Shan's body shook slightly.

I don't know why, he seems to be more ...... More......

Become more familiar with the process.

That's right, familiar......

All sorts of memorized parameters flowed out of memory and were injected into the machine with internal forces. Yuki was horrified to see that the electronic control panel of this machine was frantically refreshed, almost becoming a messy pile of color blocks.

Soon, Xiang Shan's consciousness touched the extra data that had just been released.

"A very versatile prosthetic skeleton, alloy parameters of the outer armor, thermal weapons...... Tsk, this one needs to be studied a little. I think the thermal weapons of this organization seem to show a better design idea than the one I remember. Xiang Shan pressed his head: "Another adjustment is needed...... Glyard's wireless transmitters, Paulus and Lef's batteries need to be fitted......"

If he could really choose, then Xiang Shan would really like to replace it with the batteries of Glyard or Daniel, the "green steel vulture". Glyard is a heavy vehicle prosthetic, and Daniel is simply a flying prosthetic, and its battery is far more powerful than the goods in Xiang Shan's hand.

It's a pity that Glyard's battery didn't have the time to be deducted at that time, and if he took it at that time, he wouldn't be able to fire Tiehua at the welfare officer. Daniel's battery, on the other hand, was directly blown up by an anti-aircraft gun.

"In addition, the new spine has to be equipped with a separate motor unit on each section. In the worst-case scenario, the spine with the head detached from the prosthesis needs to be considered. ”

"By the way, and the protective skull......"

"There are also some parts that the Donkey will need to upgrade......"