Open the envelope.

Liu Zheng looked at the letter and was slightly startled. The first page was not from his parents urging his grandson and granddaughter.

The first page is actually news about Liangzhou Laboratory.

Liu Zheng fell into memories and remembered that when they left, Liangzhou Laboratory was still researching steam engines.

However, Liu Zheng gave them another topic, studying electricity.

Scientists still don't have a clear understanding of what electricity is.

Liu Zheng gave them an example of thunder and lightning in the sky.

Those scientists were confused and felt that Liu Zheng was talking about something impossible. They didn't know how thunder and lightning were generated.

But Liu Zheng actually wanted to use thunder and lightning. This is simply a fantasy.

So for so long these scientists have not figured out how thunder and lightning are generated.

Only now have this group of scientists made any progress.

Liu Zheng read the content in his heart carefully.

"Sir Liu Zheng, we discovered in an interesting experiment that the paper kites released can absorb lightning. It's scary to say, but fortunately we only burned the paper kites."

"But fortunately, we also captured electricity through paper kites, but there was no way to store it...the experiment was declared a failure."

"This is an interesting experiment. That day, an experimenter wore clothes made of wool and touched a person, and two people felt a sting.

Afterwards, two people said that it was like being hit by an 'electric shock', with pain at first and then numbness."

"Based on the inspiration of these two unlucky guys, we discovered that electricity can be generated through friction, so we rubbed two wool sweaters together and discovered artificial electricity for the first time in the dark!"

"In the dark, they are so dazzling and gorgeous!"

"Unfortunately, we still have no way to store this electricity, but we feel it is necessary to tell you about this major breakthrough."

Liu Zheng pinched the corners of his eyes. He would have told them earlier that there was no way to collect these static electricity.

I should have told you a long time ago that there is no way to collect thunder and lightning in the sky.

Hey, this can be considered some progress.

Liu Zheng sighed. In his previous life, batteries were everywhere, but it was a pity that he did not study how these batteries were produced.

But Liu Zheng was not discouraged, he was used to this kind of thing.

It's a good thing to have progress.

Liu Zheng smiled and shook his head, comforting himself.

Then he turned to the second page, looked at the content on it, and twitched the corner of his mouth. Sure enough, what was supposed to come was still coming.

"Liu Zheng! My mother orders you to have a fat child with Xie Chan as soon as possible. The boy or girl will not be chosen by the parents!"

"Dad means the same thing!"

Liu Zheng couldn't help but smile after reading it. He could feel the expressions on his father's and mother's faces when they said these words.

But this matter cannot be rushed...

Mainly because I'm fighting now, so I have some free time.

Then Liu Zheng saw something that was always included in the letters sent by his father.

Liu Zheng blushed when he saw this painting. He didn't expect that his father was also a temperamental person.

At this moment, Xie Chan ran over and looked at the painting in Liu Zheng's hand with great curiosity.

"What is this? Sent by Long Yan?"

When Liu Zheng saw that Xie Chan was coming, he hurriedly put the painting away, but Xie Chan snatched it away.
Chapter completed!