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Seeing Cromwell fly away, Feng Yu showed a sweet smile.

No matter how talented and intelligent Cromwell is, he still has a natural disadvantage when facing Feng Yu and the technological system he represents, that is, he does not have a systematic understanding of technology.

Cromwell still fell in love with Feng Yu.

Mathematics, especially advanced mathematics, is very important for the development of science and technology, especially high-tech.

However, for people who have no foundation in other subjects, even if they have learned advanced mathematics knowledge, it is still too difficult to transform it into the technology industry.

The reason why Feng Yu revealed this knowledge to Cromwell was because of this chicken thief's purpose.

In Feng Yu's eyes, advanced mathematics is just like advanced theoretical physics research, both are too high-end.

For the level of technology in Greenland, it is really too high-end, so high-end that it is of little use. It would be more economical to build a bearing or design a transmission connecting rod or something like that.

But only he knew this, not Cromwell. The knowledge of advanced mathematics was as obscure as the vast expanse of smoke. In Feng Yu's eyes, it was really a huge trap used to trap the Dharma Saint.

Even if Cromwell had a genius mind and could solve the mathematical problems on earth, he would still be useless.

Except that Feng Yu might give him a certificate, outside Cattail City, if he told others that knowledge, he might be regarded as a madman, because only madmen say crazy things.

But absolutely no one would dare to refute Cromwell in front of him. Instead, they would praise him greatly, because he is the Dharma Saint, and no one can offend the peak of Geran's personal power.

This may lead to the fact that even if Cromwell wanted to popularize mathematics among humans, he might definitely get support, but there might be almost no people who would follow him and learn it sincerely.

Even if there were, it would be of little use to the development of technology.

Therefore, even if Cromwell achieved great success in this regard, it would only be a cheap cattail city.

After dismissing Cromwell, Feng Yu did not rush back to the internal combustion engine project. Instead, he took out the set of equipment he had collected and found someone to imitate a set of the same style according to that style. He also made a hiking pole. , multifunctional water cup.

Of course, whether it's textile materials or metal production techniques, Cattail City is naturally incomparable with the craftsmanship on Earth, but it's still pretty decent.

When Feng Yu suddenly appeared in front of Nicole wearing the clothes that Nicole remembered so well and carrying a big travel bag, Nicole was shocked.

Before Xiao Nizi could think about it, Feng Yu grabbed Nicole's hand and pulled her onto the airship heading to the Golden City.

She was engaged and couldn't neglect the beauty. Although Nicole understood Feng Yu's unremitting efforts for Cattail City, Feng Yu still wanted Nicole to feel more of his affection.

The sky is clear blue, and the starboard side of the airship is the blue sea. The airship is not flying high, the hatch is open, Feng Yu is holding Nicole, sitting there enjoying the beautiful scenery outside, leisurely and contentedly.

This airship was transporting supplies to the Golden City. There was no one in the warehouse, and Nicole rarely let go. She just snuggled into Feng Yu's arms, humming softly the song Feng Yu sang to her, and sprinkled water along the way. Dog food all the way.

"I originally wanted to carry you here, but there are still a lot of things to do in Cattail City, so we can take a break from our busy schedule."

"It's okay. Grandpa is also very happy to see that Cattail City is so good now, although he doesn't say much. Thank you, Yu."

Hearing this title, Feng Yu hugged Nicole in his arms and couldn't help but feel filled with emotion.

"Next time you say thank you, I'll tickle you." Feng Yu whispered in Nicole's ear.

His mouth was too close to Nicole's ear, and the breath he brought out when he spoke made Nicole's ears move slightly, and the roots of her ears slowly turned red.

"Yu, will you leave here in the future?"

"I will"

After Feng Yu finished speaking, he felt Nicole's body move unnaturally in his arms.

"But at that time, I will definitely take you and the people from Cattail City with me to explore the vast sea of ​​stars together."

"Star Sea"

"That's right, as I told you, every star in the sky is a world like Grain. And my hometown is also a grain of sand in the sea of ​​stars."

The two of them whispered, immersed in this rare warmth.

The reconstruction work of the Golden City has just begun, and now only simple defensive positions have been established on the walls of the Imperial City and on the periphery of the city to defend against threats from the desert.

Marshall and Jason, the two elf teenagers, were very happy about the arrival of Feng Yu and Nicole. Naturally, they were also very happy about the engagement between their teacher and Nicole, the elf genius magician. They met Nicole as a teacher.

In this environment, when faced with the two elf students who were often with Feng Yu and were even often taken home for dinner by Feng Yu, Nicole was able to let go and agreed sweetly.

"Master's wife, I heard that the master brought you here for vacation, so Marshall and I prepared a gift for you."

Feng Yuyile: "You two boys have found a gold mine."

“Teacher, can we give such tacky things to our teacher’s wife?

We heard that there is an oasis in the desert, and there is a very ferocious magic value in it. "

"What magic value?" Feng Yu was stunned when he heard this.

"Plants like the magical ancient trees in the Elf Forest can also be called plant-based monsters, but some have more magic value like plants, while others can move and are more like animals." Nicole gave her spell-blind accuracy Popular science about husband.

Jason said: "It is a plant called the Nine-Headed Sand Vine by the sand people. It feeds exclusively on desert animals that come to the oasis to drink water in the desert. It is very ferocious.

The oasis is not far to the northwest of the Golden City. It is quite large and could be developed to raise fish and plant fruit trees around it. However, it is occupied by that magic plant and has become a deserted place.

Now there are many sand people grazing in Golden City, and they come to exchange some goods with us. Marshall and I also heard what those sand people said. "

"Yes, Jason said that the master's wife didn't have the wand yet, so I led the soldiers to use an aerial bomb to smash it in a sneak attack." Marshall said with a proud smile.

"I heard in the telegram that your proposal was successful, teacher. We were thinking which one of us would bring it back to our mistress as our gift when we go back. We didn't expect that you and our mistress would come over right now."

As he spoke, Marshall took out a small desert-style gilt box inlaid with gems and opened it. Inside was a beautiful green magic crystal and a small section of tree vine.

"This is actually a high-quality magic crystal. It's too dangerous for you." Nicole said in surprise.