I'm back from American comics

After Gu Yi thought about making a disposable hand cannon, he took the piece of paper used to organize his thoughts to the toilet, burned it with Tao Ji's lighter, and flushed it away.

And Han Tong, who was closely connected to Gu Yi online, watched from the other end of the computer as Gu Yi wrote and drew excitedly, and then talked to himself in an inaudible voice...

Anyway, he is doing something that is difficult to evaluate...

The sound of flushing water came out.

Gu Yi came out of the toilet and sat back on the table. It seemed that he took out a piece of paper again and wrote and drew on it.

Nothing fancy to see.

Han Tong withdrew his gaze from Gu Yi and once again focused on his search for the symbol tattoo.

Still the same result, nothing was found.

Han Tong spent nearly two hours, but still couldn't find any useful clues.

She clicked on the picture that she had saved as a screenshot and looked at it again.

Gu Yi told her that this was a symbol tattooed on a man's body.

"If you use this kind of symbol that has no meaning at all to make a tattoo... it can't be the emblem of some gang or organization, right?" The hacker girl opened her mind again.

However, since nothing could be found now anyway, Han Tong simply followed this idea and continued to consider the investigation.

"Have a look inside the deep web or dark web. If this tattoo is really the symbol of some gangster organization, there may be traces of their activities in these places." Han Tong thought about the next step of the investigation.

As for Gu Yi.

He is busy drawing structural drawings of disposable hand cannons.

After writing down or drawing the preparation process, carefully review it and then destroy it. This is the first step for Gu Yi to engage in scientific research after returning to Blue Star.

Writing down the process on paper can help Gu Yi sort out his manufacturing ideas.

Secondly, when doing research at Base 901 in the Marvel world, all of Gu Yi's research was done in collaboration with others, so there were many details that he did not do personally.

Therefore, writing and drawing can also help Gu Yi figure out these details.

It took Gu Yi a total of 4 pieces of A3 size paper to draw and straighten out the structure of the disposable hand cannon.

It looks like a rather simple gadget, but it is not that simple in principle and structure.

Moreover, Gu Yi also added a heat insulation and shock-proof barrier behind the core titanium alloy sheet, making this disposable hand cannon easier to use.

After completing the preliminary design, Gu Yi looked at the drawings and roughly estimated the cost of the next disposable hand cannon.

Each one costs about five thousand yuan. After all, the most important titanium alloy and some microelectronic components in the hand cannon's structure are not cheap at all.

Gu Yi, what he eats is money, and what he squeezes out is black technology.

However, after all, Gu Sanwan still had 290 million yuan on hand, so it wouldn't hurt to make more than ten or twenty disposable hand cannons.

After carefully browsing the structural drawings of the disposable hand cannon, Gu Yi did not stop creating.

He took out a few more pieces of white paper and started writing again, preparing to draw a new small equipment structure diagram.

This time, what he wants to draw is not the previous alternative equipment, the spider silk launcher or the mourning whip suit, but a brand new prop that he wants to design.

This small prop is prepared for the serum.

When Gu Yi was just sorting out the catalog of black technologies he held, he had already thought about it carefully.

There are three pieces of black technology on his body, among which Xinghe has not grown yet, and the remaining two are all serum.

Among them, if the brain serum is not injected for a month, it will be life-threatening.

As for the new serum 20, which needs to be used with caution, it can currently be regarded as Gu Yi's trump card that can be used as a guard of honor. Its card size is about the same as "four threes".

If Gu Yi has enough time, he can try to further test and upgrade it to prepare a new serum 30 that is safer and stimulates body functions to a greater extent.

Strive to turn "four 3's" into "four 2's".

But if something unexpected happens in the near future, Gu Yi may choose to directly inject the new serum 20.

Therefore, it is best to carry both serums on hand now.

Then the problem comes. It is inconvenient to carry the serum with you, that is, two small wooden boxes in your pocket.

Therefore, Gu Yi wanted to design a portable serum container.

After thinking for a while, Gu Yi started to draw. He drew a simple necklace. The decorations of the necklace were two cylinders that were similar in shape and size to a qiangdan.

Then, Gu Yi drew the internal mechanisms of the two cylinders below.

First of all, the interior is hollow. With this hollow volume design, it is not a problem to hold 50l of liquid.

Secondly, there is a small interlayer in the golden shell. Gu Yi drew various small springs, small gaskets and other parts, and even a slender hollow needle tip, all hidden in the interlayer...

By the time Gu Yi finished drawing the drawing of the serum container necklace, it was already past 8 o'clock.

Now, a full 7 hours have passed since Gu Yi received the news from Lin Yaoxin. During this long time, Gu Yi has been lying in front of the table writing and drawing.

"Calling it up." Gu Yi stretched out.

"Well, what have you been doing since this afternoon?" Han Tong said softly.

At this moment, Han Tong was actually in a state of boredom. Her search for information about the symbol pattern still made no progress at all.

Gu Yi didn't answer, just turned his head and looked at Lin Kun's computer camera with half-squinted eyes.

"That! It's something you can't ask again, isn't it?" Han Tong's voice still had that timid tone.

It was hard to imagine that such a girl could be the young hacker who invaded Red Fox and followed Gu Yi all the way online in an attempt to challenge him.

"That's not true." Gu Yi stood up from his position and took two design drawings of the serum container necklace from the table.

If he remembered correctly, when he forcibly took pictures of Han Tong yesterday, a workbench behind her and some scattered tool parts on the ground could be vaguely seen in the photo.

This girl seems to be a crafts enthusiast?

Gu Yi waved the two drawings in front of Lin Kun's computer camera.

"You spent almost a whole day designing a necklace that looks very punk?" When Han Tong saw the drawing for the first time, there was endless confusion in his tone.

However, when she saw the internal structure of the small cylindrical container painted by Gu Yi, she stopped making any sound.

If Gu Yi could see Han Tong's face, he would find that the little girl was holding her breath and concentrating on it.

His level of concentration is no less than Lin Kun's appreciation of some colored "learning materials" videos.

"So, when you twist the top of this cylindrical container, it will turn into a syringe, right?" Han Tong easily understood Gu Yi's design, and there was even a little excitement in her voice.

Just as Gu Yi guessed, Han Tong is indeed a crafts lover.

Frankly speaking, the things that make Han Tong feel most excited and happy are usually related to two themes, one is computer hacking technology, and the other is the design and manufacturing of mechanical crafts.

The interesting thing is that Han Tong has now seen the superb level of these two themes in Gu Yi, a somewhat strange man.