191: Card Games

The next day.

The weather was clear.

News of the upcoming competition had already spread among the students.

Everyone was very interested.

By noon, no one was taking their nap; they gathered in twos and threes at the competition venue.

Initially, the competition was planned for a classroom, but due to the large number of attendees, it was moved to the training ground.

Although it was nap time, with such an exciting event to watch, who could possibly sleep?

As a result, almost everyone from the training camp gathered on the training ground.

The judges for the competition were all the teachers from the training camp, but to avoid any perception of unfairness, Teacher Bai was not allowed to be a judge.

Xu Bai and Bai Shan had no objections to this.

The two sides of the competition were Ji Jingping as one party, and Gao Wenhan and Xie Yongchao as the other.

The cards-making time was one hour.

To avoid delays, Li Xuangan, Teacher Li directly announced the start of the competition.

Xu Bai and Xu Le were just there to watch today; although Xu Bai couldn't be a judge, he still came to see the excitement and what kind of cardss the students could create now.

As he walked, he met up with his three apprentices.

Actually, while they were making cardss, the onlookers were quite bored, but even so, no one wanted to leave.

Everyone watched respectfully, occasionally whispering guesses about whether the two sides had encountered difficulties, based on their expressions.

10 minutes passed... 30 minutes passed... an hour passed... Finally, the cards-making time ended, and now both sides needed to insert their cardss into the cards reader.

At this point, it would be seen if the cardss they made could be read.

A cards's function could only be tested after it was read by a cards reader; if it couldn't be read, it meant the cards was a 廢卡 (discarded cards).

Everyone held their breath, waiting.

However, they didn't have to wait long; the results were in, and the cards products from both sides were successfully read.

Now, both sides had to introduce their self-made cards products.

Gao Wenhan stepped forward first to introduce their product.

“What we made is an elevator cards—”

"An elevator!"

Before he could finish, the students gasped in surprise.

Hearing the students' exclamations, Gao Wenhan's face radiated a confident smile.

Xu Bai also looked on with interest at the object in front of him, which resembled a lift.

This was an elevator?

...Once the students quieted down, Gao Wenhan continued to introduce the product next to him.

"Just as Teacher Bai taught in class, we just press the button, and the elevator door opens."

As Gao Wenhan spoke, he pressed the button in front of the elevator; the button lit up, and at the same time, the elevator door opened, then he walked into the elevator.

Because this required a demonstration, the other three sides temporarily had no walls, so even when he entered the elevator, everyone could still see him.

He pressed an 'up' button, and the elevator truly ascended; simultaneously, the light went out, and the door opened.

Then he pressed a 'down' button, the door closed, the light came back on, and the elevator swayed as it descended.

After the test, he stepped out of the elevator and looked at the students.

"This is the elevator cards we made; we've already demonstrated it, would you like to try it?"

"Yes, yes."

The students excitedly raised their hands, eagerly volunteering.

However, it was impossible for them to go up and try it; instead, the teachers came forward to inspect and score it.

"Teacher Bai, would you like to come forward and take a look too?"

Xu Bai pointed to himself, his eyes asking Xie Yongchao for confirmation.

He knew he was just an observer today and had planned to go check it out after the competition, but he didn't expect the participants to call him over themselves.

After the other party nodded, confirming they were indeed calling him, Xu Bai unceremoniously pulled Xu Le along to examine it.

Xu Le was very happy and wanted to press the elevator button and step into the elevator like the older brother just now.

Xu Bai quickly held him back to prevent him from running around; he knew this thing didn't seem to have any safety devices, and it would be disastrous if Xu Le went up and fell down.

So, it was better for him to stay by his side.

The child was growing bigger and becoming more active... First, this elevator could ascend and descend, and the elevator buttons could light up; these two things were intuitively visible to everyone.

However, since this elevator seemed to only go up one floor, it was impossible to determine what would happen if it were a three-story building and both the 2nd and 3rd-floor buttons were pressed, or if it simply couldn't ascend to the 3rd floor at all.

Also, even though the elevator button lights would illuminate, it wasn't certain whether the elevator's up and down movement was based on this.

All of this would need to be determined after a complete inspection to ascertain whether this elevator was a real elevator or a fake one.

Xu Bai began to examine the surrounding components of the elevator, and the other teachers followed suit.

Suddenly, he saw a box.

"Can this box be opened for a look?"

Hearing this question, Xie Yongchao looked at Gao Wenhan, letting him decide whether to open the box.

Gao Wenhan thought for a moment, then nodded in agreement.

After the box was opened, Xu Bai saw its contents and understood the operating principle of this elevator.

This was actually a hydraulic lift; the principle of hydraulics is that pressure is transmitted equally in a confined liquid, and this pressure can make the elevator rise.

Its operating method was actually that after the water pump was started, water was pumped from the water tank into the pressure cylinder, and the piston slowly rose under the action of blood pressure, driving this "elevator" upwards; when it needed to descend, it only needed to open the drain valve, the water flowed out, and the "elevator" could then descend.

Just now, everyone's attention was on the elevator, so they overlooked the person controlling it below.

After examining the device, Xu Bai looked at the elevator buttons again.

He found that the buttons were actually just small lights; pressing a button merely operated the light switch and had nothing to do with the elevator's ascent or descent, which was a clever trick.

In fact, if Xu Bai hadn't described how elevator buttons light up in the future world, they might not have included this design.

"Teacher Xu Bai, what do you think? Is this elevator the kind of elevator you envisioned?"

Xu Bai shook his head.

Seeing Xu Bai's action, Gao Wenhan and Xie Yongchao's expressions dimmed.

Their idea was based on Xu Bai's description; could they have misunderstood?

"Although it's not the kind of elevator I envisioned, your idea is excellent. This can be considered a hydraulic lift, and perhaps it can be used to move things upstairs.

However, it also has some drawbacks that you can note down and optimize later to avoid any accidents."

Hearing Xu Bai's words, the two brightened up again, pulling out paper and pen, ready to record Xu Bai's suggestions.