When Li Haoze saw Empress Changsun's warm smile, he was so excited that he couldn't express it in words.

He walked quickly forward, threw himself into Empress Changsun's arms, and called out in a trembling voice, "Mother!"

Empress Changsun hugged the "little princess" tightly, patted her back gently, and said softly, "I am so grateful to you."

"Sizi, what's wrong? Is there something that makes you unhappy?"

Li Haoze raised his head, his eyes gleaming with excitement. He shook his head and said, "Mother, I'm not Sizi. I have good news to tell you!"

"Oh? It's little Rangjun! What good news do you want to tell me?" Empress Changsun asked curiously, with anticipation in her eyes.

In her eyes, both Xiao Sizi and Xiao Rangjun are her beloved children.

Li Haoze took a deep breath, his voice revealing unconcealed excitement: "Mother, we successfully copied the radio!"

"The radio has already been invented?!" Empress Changsun asked in surprise. She had only heard about this novel concept of radio from Xiao Sizi.

She originally thought that it would take at least several months or even years to create such an item with magical functions, but she didn't expect it to be realized so quickly.

Empress Changsun was shocked, but also felt extremely happy and proud.

"Yes, Auntie! We have successfully made a radio, and it works very well!"

Li Haoze said as he waved to Tianxiang who followed him, "Xiangxiang, bring the radio over here and let Mother listen to it!"

Upon hearing this, Tianxiang immediately held the radio carefully, walked up to Empress Changsun and handed it to her.

Empress Changsun took the radio and looked at this peculiarly shaped object curiously.

The "little princess" stretched out her little hand and gently pressed the switch of the radio.

Then, a clear voice came from the radio.

"The sky and earth are dark yellow, the universe is vast and boundless, the sun and moon wax and wane, the stars are spread out in a line, winter comes and summer goes, autumn harvests and winter stores..."

Empress Changsun looked at the small box in her hand in surprise. The sound actually came from this small radio.

She looked up at the "little princess" with questioning eyes.

Li Haoze smiled proudly and explained, "Mother, this is the magic of the radio. It can capture sounds from far away and transmit them here.

What is being played now is the Thousand Character Classic being read aloud by our radio announcer."

After hearing this, Empress Zhangsun's eyes flashed with shock. She realized that the invention of this technology would have a profound impact on the Tang Dynasty.

It is not only an entertainment tool, but also a medium for spreading knowledge and communicating information.

"This is truly amazing!" Empress Changsun exclaimed sincerely, "Little Rangjun, you did a great job!"

When Li Haoze heard Empress Changsun's praise, he felt an indescribable sense of pride in his heart.

He knew that the efforts of himself, the little princess, and the workshop craftsmen had not been in vain, as they had brought a groundbreaking scientific and technological achievement to the Tang Dynasty.

"Mother, this is just the beginning." Li Haoze continued to introduce confidently, "Mother, look here, it's used to adjust the channel."

As he spoke, he pointed to a knob on the radio and turned it gently.

The broadcast sound on the radio disappeared and turned into a crackling sound of electricity.

Li Haoze introduced seriously, "You can receive different channels here, and each channel has its own unique content.

For example, we can set up a special news channel to deliver news from all over the Tang Dynasty in a timely manner;

There can also be channels for storytelling and singing for people to relax and entertain themselves.”

"Of course, our radios have just been copied, and we haven't had time to build so many radio stations yet."

"But don't worry, mother, give me some time.

I will definitely make the radio more practical and more interesting!" Li Haoze promised confidently.

Empress Changsun looked at the "little princess's" face full of enthusiasm and determination, and her joy was beyond words.

She knew that this child could always bring her surprises and hope.

"Good boy, mother believes you can do it."

Empress Changsun gently stroked the "little princess's" head, her eyes full of encouragement and expectation.

Then, she changed the subject, "Little Rang-jun, you must be exhausted these days developing such a wonderful thing with Little Sizi?"

"Come on, let's go back to the palace with Mother! Mother has prepared some delicious snacks for you, let's eat and talk."

After hearing this, Li Haoze's eyes lit up. He was indeed hungry.

He smiled and nodded, and was carried towards the bedroom by Empress Changsun.

Along the way, Empress Changsun chatted with the "little princess" about the various possibilities of the radio. She was full of interest and curiosity about this novel object.

Li Haoze also enthusiastically answered various questions for Empress Changsun, while secretly planning the future development blueprint of the radio station in his heart.

When the two arrived at the bedroom, a table full of sumptuous snacks had been prepared.

Empress Zhangsun pulled Li Haoze to sit down, picked up a piece of exquisite pastry for him, and said with a smile: "Come, try this, this is your favorite flavor."

Li Haoze gratefully accepted the cake, took a bite, and nodded in satisfaction, "Mm, it's delicious! Thank you, mother!"

Empress Changsun looked at the satisfied look of the "little princess" and her heart was also filled with joy.

She knew very well that this child was not only smart, but also knew how to be grateful and give back, which made her feel extremely gratified and proud.

The two of them ate and chatted, the atmosphere was warm and harmonious.

Time passed slowly, and in the blink of an eye, several weeks had passed.

Summer is approaching quietly. The air in Chang'an City is filled with the faint fragrance of flowers, and the sunlight shines through the lush treetops, casting mottled light and shadows.

As the weather gradually gets warmer, people's clothing starts to become light and breathable, and various light gauze skirts and short tops become the mainstream on the streets.

Children's laughter echoes in the streets and alleys. They are chasing and playing, or playing hide-and-seek, enjoying the joy of summer.

In this vibrant season, the popularization of books is also in full swing.

Since the printing plant was built, a large number of cheap books have flooded into the public through Mingda Bookstore.

This gives more people the opportunity to access these books that were originally controlled by aristocratic families and learn knowledge.

However, since the teachers were basically controlled by aristocratic families, and the schools run by the royal family were occupied by the children of aristocratic families, it was difficult for ordinary people to enter.

This makes it impossible for many people who want to study to get a good education.

Therefore, these people who got the books wanted to give their children the opportunity to change their destiny.

They were willing to spend huge sums of money, or even sell their property, just to find a teacher with real talent and knowledge to teach and answer their children's questions.