"Student, you are right. This sand table is indeed printed with 4D technology and is indeed programmable material, but it is much more complicated than you think." After Jin Shiyun said that, he blew a breath at the horse running on the road. The horse immediately left the ground with both front legs and made a loud neighing sound.

The group of students immediately surrounded him with surprise, and even the old professor showed a surprised expression on his face.

"Although these things are indeed controlled by us using programs, our control programs are much more complicated than you think. In addition to having programs, these materials also integrate some of the most basic sensors, which can respond accordingly through perceptions from the outside world."

After saying that, Jin Shiyun picked up the mineral water bottle in his hand and poured it on the bench in the park. Then, everyone could see that the bench automatically folded and flipped his body to form an umbrella to shelter from the rain.

"Wow, so magical, will the physical objects in the future react like this?" said the academic master in shock.

"Of course, in addition to showing its shape, the sand table also needs to show its spirit. We will not make any functions that it does not actually exist." Jin Shiyun said with a serious face.

"So, can those buildings change their own situation in time by sensing the situation outside?" said the academic master with an excited look.

"It is indeed possible in theory, but considering the cost of programmable materials, we definitely cannot achieve such a function for the entire building. However, in some small infrastructure facilities, we have fully realized it. For example, garbage cans, they can automatically change the shape according to their own situation. When the garbage cans are full, they will automatically send the garbage to the garbage station, and all garbage cans are linked. If an emergency occurs, they can turn into robots and provide strong protection for their area."

After Jin Shiyun reminded everyone to focus on the trash cans. Those trash cans look no different from ordinary trash cans, and they squatted in the corner and remained motionless.

"When the power is insufficient, they will find a corner and use light energy to charge. When charging, they are the shape of a trash can. Once charged, they are patrolling security guards. People here can litter at will, but they can still ensure that the garbage does not have to land."

After Jin Shiyun finished speaking, a little bread crumbs slowly spread out from the air. When the bread crumbs were about to land, the trash can that was originally squatting there to charge suddenly turned into a cute robot, and ran towards the bread crumbs in small steps, and before the bread crumbs landed, biting the bread crumbs in one bite.

"Wow, it's so amazing, it's simply amazing!" A group of college students with higher education showed that they had never seen the world at this moment.

Most of the people who came here on the first day were students. After all, those in power knew that students were the future of this country, especially those countries with relatively backward technology. They were more willing to spend money to send these students here to broaden their horizons. After all, such an opportunity is rare in a century.

Those in power know the importance of technology to a country. Of course, they want to use this rare opportunity to stimulate students' interest in technology, because for most young people in this era, their ideal is to be a celebrity, make a lot of money, or be a businessman who spends money like money. No matter how bad it is, they must be an internet celebrity who makes money every day.

"Jingwei, what are you looking for? The exhibition hall of Tiantong Company is ahead. Wow, there are so many people, let's take a look. Tiantong Company ranks first in the world and has been engaged in the high-tech field before. This time it will definitely showcase a lot of incredible things."

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Chapter completed!