I thought I was still Long Aotian

There are many underground laboratories under the Radish Science and Technology Building, among which the high-tech product research and development laboratory with the highest technological content is the high-end product research and development laboratory [-] meters underground. All floors are equipped with life support systems and refuge floors, which can be used for emergency evacuation by scientific researchers in the event of laboratory accidents.

Yuen Long took the old couple down to the laboratory under [-] meters. The decoration here is mainly white with silver-gray embellishments. It looks simple and mysterious with a sense of the future. The long passages are lined with explosion-proof glass There are many small laboratories separated, and several researchers in white coats are busy inside.

Pointing to the newly developed equipment, Yuen Long introduced to the old man: "Grandpa, look. That one is a 3D printer. 3D printing technology has been around since the 80s, but we are the ones who really apply it to our lives. countrymen."

Yuen Long: "3D printing materials are diversified. They can not only be used in industrial manufacturing to print some precision products, but can also be used in jewelry making, human organ reconstruction and other fields. The development direction is very broad."

Yuen Long: "For example, the previous titanium alloy femoral heads were all processed by digital machine tools, and their shapes were basically the same. They were installed in the human body, but they did not conform to the bone connection structure of some patients. Now using 3D printers, it is completely possible to The patient’s own bone shape is used to print, and the materials used have also developed from titanium alloy, ceramics to vibrating gold, and the shape and size are seamless with the patient’s own, and the production time is much faster than before.”

Elderly people and alcoholics are prone to femoral head necrosis. Among the old man’s comrades in arms, some had undergone femoral head transplant surgery not long ago. After more than half a year after the operation, they still could not walk smoothly and kept complaining of hip pain.

The old man was interested in this, so he couldn't help asking a few more questions. Although the old lady didn't have much education, she also knew that the equipment here by her grandson could benefit mankind.

Yuen Long smiled and took them on a tour.

Among them, besides the gravity laboratory and the vacuum laboratory, the most important ones are the biological laboratory for bionic technology, and the robotics laboratory jointly established by Yuen Long and Academician Liu.

With the discovery of polonium silicide, zirconium silicide, and niobium silicide, the robot's power problem has been explained, and the internal transmission system of the robot is not a big deal for experts like Academician Liu. After passing the intelligent program, they can assemble a highly intelligent robot in minutes.

The old man looked at the semi-finished robot that looked like a Terminator through the glass, "Is this thing for home use or military use?" The robot resembled a human being, made of all metal, and looked cold and scary, not at all as cute as the Erwei at home.

Yuen Long: "This one is for home use. In addition to the nursing function, it can also do housework."

The old man shook his head and commented: "The appearance is too ugly, but it can deter the enemy in war."

The old lady thought the same way, "Well, it's too ugly, wouldn't it be better to be like Erwei?"

Yuen Long smiled helplessly, and pointed to the laboratory next door: "A combat robot does not need a human appearance, as long as it can hold its hole cards and can carry more ammunition on its body."

This direction is the laboratory of the Weapons Group. The war robots they developed range from a big iron block that walks upright on two legs, to a laser dog that runs fast at half a person's height on four legs, and then to a six-legged spider that can travel on multiple terrains. Its armored vehicles are comparable to the iron and steel monsters in sci-fi movies.

The old man and the old lady: ...

Yuen Long stepped forward to help the shocked elders: "Grandpa and grandma, come here, let's visit the last laboratory."

The last laboratory is the newly opened virtual imaging laboratory, which is based on three-dimensional imaging to realize the interactive experience between virtual and reality.Simulate the real environment through a powerful computer, turn the real data into an electronic signal, combine it with various devices, and transform it into a phenomenon that people can feel.

This is what people call virtual reality technology. In this simulated environment, it is difficult to distinguish between virtual reality and reality. People can hear, see, and touch everything in the virtual world, and travel around the world without leaving home.

The laboratory is small and fully enclosed. Shui Hua is holding two sets of wearable devices in her hand, waiting for their arrival.

Yuan Long looked at him and smiled unconsciously. He introduced to the old couple: "Grandpa and grandma, this is Shuihua. He prepared a birthday present for grandpa in advance."

The old couple didn't realize it at first, thinking that he was Yuen Long's colleague, and thanked Shuihua enthusiastically.After the two elders put on the induction equipment and sat on the sofa in the laboratory, they noticed that they were standing behind them holding hands.

The old man's face was pulled down at that time, but before he could speak, two hemispherical devices fell from the ceiling of the laboratory, covering his and his wife's heads.

With a flash of light and shadow, the hillside where he and the old lady met appeared in the picture, and the path that he had traveled so many times leading to the ancient tree in the middle of the mountain appeared in the picture.

The old man raised his foot unconsciously, the sensing device sensed his intention, and the picture began to move forward, as if he was walking forward.

The picture advances little by little, and the old man looks around at the same scenery as back then, feeling a lot of shock and emotion in his heart.

He knew that his grandson was really amazing. He grew from a rebellious boy to an outstanding young man, invented and created many good things that benefited the country and the people, and was appreciated and praised by the leaders above.

Although he didn't join the military and politics as he wanted, he earned the respect of others by himself, excelled in his industry, and made himself proud of him.

For him to find a man to be his wife, he couldn't accept it at first, which overturned his cognition, but neither the boss nor the boss's wife had any objection to being parents, so he couldn't say anything more.

He originally thought that Shuihua would be like the "Danjiao" raised in the old social theater gardens, talking babbling or soft-spoken, but he never thought that he was a normal person, standing with Yuen Long, only a little shorter .

"Old man!" The old lady suddenly exclaimed in his ear, the old man raised his eyes and saw that under the ancient tree not far away, the girl with big braids in a floral jacket was as beautiful as before.

The old man put aside distracting thoughts, and walked towards the young old lady with his legs.

"Haha, old man, you've become younger!" The old lady's old voice was next to her ears, but in front of her eyes was a girl with big braids who fascinated the whole village.

The old man raised his hand and waved in front of her, "Hey, old lady, it's really you, I don't even dare to recognize you."

"Oops!" The old lady habitually raised her hand to block it, but she didn't expect to touch it. There was an obvious touch feeling from her hand, which made the old lady very happy.

The old man was also taken aback by this, pulled the sensor glove on his hand, and tried to raise his hand to touch the big girl Shui Ling in front of him.

"Hey, what are you doing, don't pull my hair." The old lady shouted dissatisfied.

"Hehe, can you really feel me pulling your hair?" The old man became interested, and couldn't help but raised his hand to pull the big braid in front of him again.

Back then he liked it so much, he liked to hold it in his hand and play with it when he was free.

Seeing that the old couple were having fun, Yuan Long quietly pulled Shui Hua back to the door. He first turned his head and kissed him, and then said: "Your idea is really good, it seems that Grandpa likes it very much."

Water Birch blushed and avoided it.