Stargirl's guide to life in the 70s

Everyone here was divided into two groups, and they took up the gadgets on the table and started tinkering with them.

Seeing this, Yu Jiang did not interfere too much. He went to his own laboratory table, took out the report on the two gadgets and began to continue improving them.

That thing was actually a portable phone that Yu Jiang had started making when he was in the army.

Compared to Yu Jiang's light screen, the only function of this phone is to make calls.

However, due to its single function, Yu Jiang tried to make the phone as small as possible after solving the wireless communication technology of the phone.

The phones they see now are not even as big as a human fist, but are only as thick as an adult's palm.

It’s not that Yu Jiang doesn’t want to add some other things, the main reason is that the current function of the phone is to make calls. After solving this most important problem, it will be very convenient to contact your family members.

Moreover, being able to accomplish all of them at once really demonstrates strength.

But how can I make money from new products afterwards?

Anyway, the computer project is the focus now, so Yu Jiang still plans to get the computer done first and then worry about the rest.

Now that the phone has been made, Yu Jiang only needs the last part of information to submit it and wait for review.

To be honest, considering the various restrictions of this era, it is not easy for Yu Jiang to make the current phone.

For example, the battery part of a phone.

Yu Jiang went to find a professional in the laboratory who was researching this field and asked him to customize a battery for him.

In this way, the battery life problem of portable mobile phones is solved.

After all, due to technological influences, although the battery problem has been solved, the shortcomings are still very obvious, that is, the battery's power storage function is insufficient.

Today’s batteries can only power phones for two days at most, which is naturally incomparable to Interstellar’s ​​technology.

But it’s not a big problem. Even if you are on a business trip or on a mission like Lu Beiyuan and the others, there is no condition to charge the phone.

Just bring a few extra charged batteries.

How big of a deal?

Therefore, Yu Jiang was not in a hurry at all and planned to discuss improving the battery when he had time later.

Back to the present, when Yu Jiang took out two phones, he was already setting a trap for his men.

If I had known this, there would be no numbers or answering symbols on her phone.

If she didn't tell me, who would know what those buttons meant?

If they studied the two phones together, Yu Jiang felt that they might be able to discover the secret, but this group of people simply split into two groups and tinkered with only one phone.

Ugh……

She just needs to see if this group of people can give her any surprises!

It took more than two hours for these twenty-odd people to finish reading it, and they wrote down their thoughts and handed them to Yu Jiang.

Yu Jiang looked at the more than 20 answer sheets in her hand, her expression did not change at all, as if no matter what they wrote, it would not cause any emotional fluctuations in her.

However, there were a few people who actually answered the question correctly, and even if they didn't guess what the idea was, they were leaning towards the phone call.

This really made Yu Jiang's eyes light up!

Then she randomly called on a new member who had answered the question: "Can you tell me why you think so?"

The man was also surprised that Yu Jiang would point to him, mainly because he had hesitated again and again when writing the answer. Although he was guessing in that direction, he regretted it after writing such a wild answer!

"for this I……"

Seeing his hesitation, Yu Jiang comforted him, "It's okay, just answer whatever you think. I don't require a correct answer."

The man then reorganized his words: "When I first saw it, I really didn't know what it was. Even after seeing the internal structure, I had no idea. Not to mention that the little thing didn't respond at all when I pressed the button.

And after the lid was opened, the empty space was obviously used to store something.

So I guess it is in a state where it cannot be started.

This is my observation, and I believe many people share the same opinion as me.

To be honest, before I started writing, I had no idea what this thing was used for..."

Seeing that Yu Jiang's expression remained unchanged, the man continued, "But you took out two identical ones before.

This thing looks expensive. If there is no rigid demand, I don't think you would go to the trouble of making a second one. So there must be some connection between these two identical things.

So I would hazard a guess that these are two devices sending signals to each other.”

Yu Jiang was quite satisfied with the answer. This guy still had a brain and knew how to think.

For such people, it should be much easier to take care of them by yourself in the future.

Afterwards, Yu Jiang picked some people with unique ideas and asked them to share their opinions.

Finally, a preliminary evaluation of these new members is fresh out of the box.

Yu Jiang faced everyone's gaze and put the evaluation form back into his drawer.

Yu Jiang then picked up the two small things in his hand and took two batteries from the drawer to install them.

“This thing is a telephone.”

Yu Jiang's light words shocked everyone present!

It's not like they haven't used the telephone before. Everyone knows what a phone looks like. But now I tell them that this iron box that doesn't appear to have any wires on it from the outside is actually a phone!

The kind that can make phone calls?!

Yu Jiang didn't care about their surprised expressions: "What's so strange about it? I just removed some unnecessary parts and added some new things so that the phone can be carried with you."

Everyone:...

You call it just that?!

"The one I gave you just now didn't have batteries installed, so it really couldn't be used. Now it can be used. Let me show you how."

Yu Jiang turned on two phones and handed one to Su Jing, pointing to a button. "Take a few people out to answer the phone later. Press this button to get through. Then just talk normally."

Su Jing was arranged to be the first to answer the phone, and he was so happy that he went to the outside of the laboratory with a few people who wanted to see the phone call, and even closed the door considerately.

After Yu Jiang waited for Su Jing to go outside, he picked up his cell phone and pressed two buttons. Then everyone heard the beeping sound they would hear on the phone.

After three beeps, the beeping stopped abruptly. After a pause, a few exclamations came from the other side.

Yu Jiang ignored the people around him who were also jumping with excitement: "Su Jing, can you hear me?"

Su Jing's usually calm voice trembled a little: "Sister Yu! I... I can hear it!"

"Okay, you can walk around with the phone now, even to other buildings. I'll see if the phone communication is stable."

Su Jing heard this and ran towards the cafeteria which was further away. The cafeteria was undoubtedly the most suitable place, as it was far away and inside a building.

But he was also worried about Yu Jiang. What if the phone couldn't be used because it was too far away, or the communication quality deteriorated? Then Sister Yu would be very sad!

"Sister Yu, I'm in the cafeteria now. Can you still hear me?"

Yu Jiang was still somewhat confident in his skills: "No problem, you can come back now."

Although Su Jing still wanted to play, he knew that now was not the time to talk about these things. He said hello and waited for Yu Jiang to hang up the phone first. Then he called a few people who were still eager to try and walked towards the laboratory.