The people in the room looked at it curiously, and Sun Yao tossed the umbrella left and right in his hand, which had not yet been opened when folded.

Zhang Xiaoxue naturally saw the sixth brother pressing and knocking on the self-adhesive buckle, and at first she didn't understand what the sixth brother was doing.

This is because Zhang Xiaoxue really didn't expect this kind of self-adhesive buckle that is popularized and applied in various regions in modern times, and these people don't understand it.

This is also Sun Yao's idea that he was afraid that Xun would destroy this thing, so he didn't force it apart.

"Sister Xiaoxue's umbrella, if you want to use it on a rainy day, it should be opened, right? Do you know how to open it?"

After tossing for a while, Sun Yao hadn't untied the cloth strip yet, so he asked Zhang Xiaoxue a little embarrassed.

Uh, after a long time, he looked left and right, knocked and pressed, and it turned out that it was because the cloth strip could not be untied.

Zhang Xiaoxue stepped forward with a smile, took the umbrella from Sun Yao's hand, and ripped off the self-adhesive buckle at once.

Sun Yao next to him couldn't help but blush a little when he saw that it was so simple to open it, and he couldn't help blushing a little when he thought of what he had pressed and knocked just now.

When Zhang Xiaoxue held up the umbrella, the person standing opposite intuitively saw the picture on the umbrella.

Zhang Xiaoxue seemed to hear a soft inhalation.

Hehe, these people who are as conservative as the ancients, were shocked when they saw such a shocking and beautiful picture, Zhang Xiaoxue hid behind the umbrella, couldn't help but raise the corners of her mouth, and snickered.

Sun Yao, who was standing next to Zhang Xiaoxue, couldn't see the picture on the umbrella, his eyes were all fixed on the internal structure of the umbrella.

has already opened the umbrella, Zhang Xiaoxue handed the umbrella in her hand to Sun Yao again, and her eyes were straight.

Sun Yao hurriedly and carefully took it.

Seeing the fine structure inside the umbrella, I can't help but carefully calculate in my mind how this is composed.

Because the skeleton of the umbrella is made of a material similar to stainless steel, there must be no one in this place, Sun Yao wondered in his heart if he could use other materials instead.

Seeing the joint of the skeleton of the umbrella, Sun Yao admired the meticulousness of the person who designed the umbrella.

"Sister Xiaoxue, it seems that this umbrella should also be given by your senior brother who likes design, right?

This umbrella is so well designed, well, I don't think it's difficult to imitate this umbrella, but we haven't seen the material used for the skeleton of the umbrella, so we have to think about it first, what material to use instead. ”

Sun Yao turned his head to Zhang Xiaoxue and said.

Looking at the skeleton of the umbrella, there was an eager light in his eyes, and the texture in his hand was simply wonderful, if only he had this material in his hand.

"The material of this skeleton is metal, and I think it can be replaced by iron or copper. Sun Yao touched the handle of the umbrella and said to Zhang Xiaoxue.

"The price of iron and copper here is too expensive, and the cost of using such materials to make the skeleton of an umbrella is too high.

And the umbrella with iron or copper skeleton, the umbrella will feel a little heavy, and the skeleton can be made of bamboo, which is light and cost-saving, and the rainproof fabric on it can be replaced by oiled paper. ”

Zhang Xiaoxue knew that ancient people used oil-paper umbrellas, and the skeleton of oil-paper umbrellas was made of bamboo, so she said to Sun Yao.

After Sun Yao listened to what Zhang Xiaoxue said, he thought about it for a while, thinking in his heart about the possibility of using bamboo to make the skeleton of an umbrella, and his eyes gradually glowed.

He felt that Zhang Xiaoxue, the sister he had just recognized, was also a clever person, and he just saw the umbrella in his hand, which was made of metal, and he had been thinking about it on the metal material, which was really a fall.

Although using bamboo instead of metal for umbrella bones may not be as strong and durable as metal for it, it is much easier to make.

This umbrella made of bamboo and oiled paper, as Zhang Xiaoxue said, has a very low cost and is too suitable for popularization among the people.

"Haha! It's still Sister Xiaoxue's flexible brain, it's because I'm wrong, I've been struggling with which metal to use to make the skeleton of the umbrella.

It's not like Sister Xiaoxue said, you can use bamboo to make the skeleton of the umbrella, so it will be easier to make, and the people with low cost can also use it.

Hehe, the oil-paper umbrella we made, if it flows to the people, some clever people, I guess they can make it themselves if they take a closer look. ”

The three people who were listening on the other side were a little moved when they heard what Sun Yao said about being able to be popularized among the people.

"Sister Xiaoxue, this umbrella is yours, if it is popularized among the common people as your sixth brother Sun said, are you willing? If you don't want to, it's okay, we promise we won't pass it on to you." ”

Yu Wenze interjected.

"Hehe, since I took it out for the sixth brother to imitate, I don't plan to keep it secret or anything, as long as the sixth brother helps me make a few umbrellas for free, enough for my family to use. ”

Zhang Xiaoxue looked at Yu Wenze and replied to him with a smile.

"Thank you, but we can't let you suffer, so let's do it, in addition to asking your sixth brother to make you ten umbrellas, I will give you another hundred taels of silver, as if you bought your design. ”

After listening to Zhang Xiaoxue's answer, Yu Wenze said again that he didn't want to take advantage of Zhang Xiaoxue too much, so he gave Zhang Xiaoxue one hundred taels of silver as compensation.

"Hehe, I didn't expect to have any silver, so thank you, Brother Ze. ”

Someone sent silver, which was an unexpected surprise for Zhang Xiaoxue, she naturally wouldn't be hypocritical, and happily agreed.

For Zhang Xiaoxue's pleasure, without any pretense to shirk, Yu Wenze smiled faintly.

"Oh, I have one more suggestion, you see this umbrella can be folded, so it will be more troublesome to make, here you can use a bamboo strip to replace it, the finished umbrella, just can't fold.

The handle of the umbrella can be designed to be telescopic without being designed in this way, and a wooden pole or a thin bamboo pole can be used, which is easier to make. ”

Zhang Xiaoxue said as she pointed to the two places of the umbrella and said to Sun Yao beside her.

Sun Yao nodded when he heard this, and praised Zhang Xiaoxue for being smart with a smile on his face.

With something new to make, Sun Yao couldn't wait, and wanted to go back to his research room and make a simplified version of the umbrella that Zhang Xiaoxue said.

"That...... Sister Xiaoxue, I'll take this umbrella back and learn from it first, and it is estimated that it will be able to be made tomorrow, the simplified version of the oil-paper umbrella you said. ”

After Sun Yao obtained Zhang Xiaoxue's consent, he closed the umbrella carefully, took the umbrella and hurriedly left, and went back to make oil-paper umbrellas.