After chatting with Zhang Xinda and discussing the details, the next step is to start the space-time teleportation.

The process of teleportation is very simple, Zhang Xinda first stored the items into his own space-time tablet, and then packed and sent them, so that the things would be stored in the storage space of the space-time tablet on Li Yongji's side first.

When the time comes, when Li Yongji needs it, he only needs to put the tablet against an open space, and then the tablet can emit a light, and then, like the magic pocket of the machine, he can spit out things from small to large, and the same is true when storing items.

For the time being, I haven't found any volume or quality limitations in this space, it seems that it can be infinitely large, but just when Li Yongji thought so, he found that Zhang Xinda suddenly fell to the ground with a poof.

"Tatsuko? What happened to you? Get up! Wake up! Li Yongji immediately yelled.

After shouting for about ten seconds, Zhang Xinda got up in a flicker.

"How are you? Are you alright? Seeing him stand up, Li Yongji immediately asked with concern.

"It's fine." Zhang Xinda on the screen grinned: "It's just a sudden dizziness, a little hypoglycemia." ”

"Damn, you're still bleeding!" Li Yongji yelled!

"Oh?" was reminded by Li Yongji, Zhang Xinda wiped his nose, and after finding that there was a nosebleed, he immediately pulled out a piece of toilet paper and blocked it, and said while blocking his nose, "Maybe I haven't slept well recently and I'm on fire." ”

"Hey, there's obviously something wrong with that, right?" Li Yongji said, "Are you an idiot for me?" ”

"I can see it, then there is no way, I am really not good at lying in front of you. Actually, I was in shock just now, and it wasn't too strict, it should be a reminder of the limit, and I feel that if I send more things, it can really be fatal. Speaking of this, Zhang Xinda clenched his hands into fists and put them on his chin and said pitifully, "Oba, what should I do, what should I do, will I die?" ”

"Hey, don't make it so a**, okay? Disgusting to death! Li Yongji immediately shouted, "Besides, Oba is called a man by a woman, and a man is called a man is not like this, don't be blind if you don't understand!" If you want to call me Oba, you go transgender first! ”

"Hahaha, just kidding, just kidding. Well, it's actually nothing, don't worry too much, the reason why I'm like this should indeed be related to your time travel system, but it shouldn't be a big problem, on the contrary, after this discomfort, I was relieved. ”

"Oh? What does this say? ”

"I've been suspicious for a long time." Zhang Xinda said with a solemn face, "Look, you and I always need to have an energy source when we teleport back and forth across time and space, right?" But this thing doesn't use electricity, it's still in our body, so nine times out of ten, it will consume our own energy. Of course, rationally speaking, the bioelectricity in our body is definitely not enough energy for time and space travel, therefore, I suspect that the bioelectric energy of our body should be like the battery of the remote control, our body is the remote control, and then it can communicate with some mysterious energy in the universe, as long as it ......"

"Hey, you're a liberal arts student at Pheasant University, don't act like you know a lot. If you want me to say, even such an unscientific thing as time travel has happened, what is space-time teleportation? ”

"That's just as well. However, what I mean by this is that as a remote control, we have to be aware of the remote control and know where our capabilities are. For example, while your system doesn't limit the maximum number of things you can transfer at one time, or the size of your storage space, it's clear that all of this takes our own energy. In the past, I used to use the storage space frequently, and I often felt that it was easy to get sleepy and tired, and I thought that I was busy recently, and I didn't rest well, and my body was poor, but now it seems that this is not the case."

"What the hell are you trying to say?"

"What I'm trying to say is that this system should be that the more things you can teleport at once, the more energy you consume, and the same goes for storage space, the more things you store, the more energy you consume per unit of time. Do you feel it over there? Do you feel like you're losing power? ”

"Huh? Really? Li Yongji felt it carefully, and sure enough, he felt that the strength of his body was obviously draining, and he felt more and more lazy, and he couldn't lift his spirits more and more, as if he was about to doze off.

Waiting for Li Yongji to say his feelings, Zhang Xinda immediately said: "That's right!" I've felt this before, but I thought it was my mental breakdown that used to stay up late to guide zhì, but now it doesn't seem to be the case, it's the system that is absorbing our energy. If you look at it this way, it is easy to understand that space-time sending things is not infinite, but limited, and cannot be uncontrolled. At present, it seems that my current physique probably does not send you more than ten tons of items at a time, and the transmission of this intensity, no more than twice a day, will not be too much of a problem. That is, I can now send you up to twenty tons of cargo a day. If you're optimistic, maybe you can lose weight because of this, and you won't have to avoid it in the future. ”

"Hmph, don't be so optimistic, it's all your guess." Li Yongji shook his head, "In short, we should be restrained in sending things in the future, twenty tons and the like are too much, we don't need it at the beginning, you can follow the maximum amount of ten tons a day, five times, no more than two hundred kilograms at a time, give it a try, safety point." ”

"That's right, just like exercise, high-intensity burst exercise is looking for death, and low-intensity aerobic exercise is king." Zhang Xinda nodded and said, "Then listen to you, less diligent transmission, no more than ten tons a day, no more than two hundred kilograms at a time." ”

"Well, good, so be it." Li Yongji nodded solemnly.

"In addition, the storage space is also used as little as possible." Zhang Xinda said, "Since the storage space is very convenient, it will consume its own energy all the time, even if it consumes less than teleportation." If it's not necessary, it's better to save some energy and use all the power on teleportation, so as to minimize the time that items spend in the storage space. Especially you, you are still a minor, and your body should be even less energetic, especially pay attention! Don't be greedy and lose more than you lose when you lose your life, if I have ten tons of teleportation a day, you will have three hundred kilograms a day. ”

"Don't worry, I'll pay attention, I cherish myself more than you." Li Yongji nodded.

Speaking of this, Li Yongji felt that the feeling of being sleepy was becoming more and more obvious, and if he hadn't been strong, he would have fallen asleep immediately.

Li Yongji immediately thought that he didn't feel any discomfort when he teleported things before, probably because the gold bracelet and jade pendant occupied too small a volume and consumed too little energy, so he didn't notice it. From this point of view, in the future, you have to do what you can to transfer things, and the storage space should be used as little as possible.

Thinking of this, Li Yongji couldn't care about anything else, he just ran away, he planned to run back to his current home and spit out all his things.

As for truancy and items of unknown origin, how to explain to your family or something, hum, I can't take care of these, it's better to spit things at home than to spit outside, it's really not good, just pull the gods.

Just as Li Yongji was running fast, Zhang Xinda continued: "I don't know if I will continue to increase this upper limit in the future if I practice like this, normally speaking, the better the physique, the more energy I can use." Well, you also need to test more often, and try to find out where your safety limits are. ”

"Got it, you should have a good rest first, you have enough things for me." After Li Yongji finished speaking, he continued to run.

Fortunately, his home is not far from this school, so after running for about five minutes, Li Yongji ran back to his house, which was a shop along the street with the word "grain" curtain and a "Changfu Ji" plaque.

Ignoring the surprised gaze of the guy in the shop, Li Yongji ran directly into the shop, and then ran to the backyard.

Speaking of which, Changfu Ji is the name of the Li family's grain shop, and like many other small businesses at this time, it is also a commercial shop in front, and a warehouse and residence in the backyard.

In this way, Li Yongji ran directly to his room, then closed the doors and windows, and quickly spit out the contents of the storage space.

There were a lot of things, especially the ten tons of grain, which were piled up into a small mountain directly in front of him. Fortunately, Zhang Xinda is very cautious, everything has been packed in advance, all of them are sacks or rattan boxes, from the outside, at least there are not many advanced things that are unacceptable in the Qing Dynasty.

After spitting out the things, Li Yongji sat on the ground, leaning against the wall and panting, feeling that he had no strength at all, and his whole body was about to fall apart.

There was another burst of dripping sounds, which meant that Zhang Xinda was going to talk to him again.

When I pulled out the tablet, I saw Zhang Xinda's gloating face with sanitary napkins stuffed in both nostrils: "Yo, that's it for a total of seven minutes?" It's just storage, right? Even if you are only thirteen years old now, your physique is too poor. ”

"Hmph." Li Yongji said angrily, "Why don't you rest at ease and come to talk to me again?" ”

"There's no way, I want to too, but I suddenly think of something important, and it's not nice not to tell you."

"What's important?"

"It's our scalping plan." Zhang Xinda said sternly, "We used to fall into a misunderstanding, always thinking about reselling gold and silver, but in fact, buying silver and gold is not only troublesome, but also not cost-effective." ”

"What do you mean?"

"I mean, there's a better business than reselling gold and silver." Zhang Xinda smiled, "That's reselling silver and copper!" ”

"Reselling silver and copper?"

"That's right!" Zhang Xinda said, "How much copper can you exchange for a tael of silver over there?" ”

"Well, I really know this, recently it's been a tael of silver for 1,400 wen here."

"That's it! A penny in the Qing Dynasty, no matter what kind of treasure, even the most inferior copper coin, generally at least 2.5 grams of weight, at least half of the copper content, then I count one gram. In this way, a penny can be exchanged for at least 1 gram of copper. Do you know how much the scrap copper purchase price is here? Generally, it is about 43,000 yuan per ton, and I count it as 40,000 yuan per ton! In this way, one gram of copper is worth 0.04 yuan. And I calculate that a gram of silver is worth 4 yuan, so that the ratio between silver and copper coins will reach 1 to 100, and the actual ratio is much higher than this!

Then, one tael of silver on your side is exchanged for 1,400 yuan, which is equivalent to 36 grams of silver for 1,400 grams of copper, and the ratio of silver to copper money is 1 to 38.8! , just look at the comparison between the two exchange rates, you can know that in the Qing Dynasty, you can make more money by changing copper coins than by changing gold! And copper goods are not only larger, but also more stable, safer, less eye-catching, and easier to shoot, both for you and me.

In the future, I will give you food, you will give me copper coins, and so on...... Tsk, get rich, make a fortune! Hey, why didn't I think of that? Failure! Pouring silver is weak, and pouring copper is the king! ”

"Isn't that right?" Li Yongji suddenly shook his head, "I don't have your algorithm for price differences, but from the perspective of making RMB, reselling silver is cost-effective, right?" ”

Speaking of this, Li Yongji snapped his fingers and counted to himself: "You see, one tael of silver here is exchanged for 1,400 yuan, according to one penny and one gram of copper, it is 1,400 grams of copper, and one gram of copper is 0.04 yuan, which is 56 yuan." However, if one tael of silver is directly exchanged for RMB, according to one tael of 36 grams and one gram of silver of 3.5 yuan, it will be 126 yuan. 126 to 56, that's a bit of a big difference, right? Even if the copper content is a little higher, it can't be much higher, right? ”

"No, you miscalculated!" Zhang Xinda said, "In modern society, one gram of silver is 4 yuan, and one gram of copper is 0.04 yuan, that is, one gram of silver can be exchanged for 100 grams of copper, and in the Qing Dynasty, one tael, that is, 36 grams of silver can be exchanged for 1400 grams of copper, that is, one gram of silver can only be exchanged for 38.8 grams of copper, which is much worse!" ”

"It's a lot worse." Li Yongji spread his hands, "Doesn't this mean that copper in modern society is even less valuable." ”

"It's a bit of a mess." Zhang Xinda scratched his head, "I'll count it again, this ......"

"Don't forget it!" Li Yongji smiled, "The thing is clear, in terms of RMB, copper in modern society is cheaper, while copper in the Qing Dynasty is more expensive." Of course, from the perspective of simply making RMB, if you have to pour copper, it is not impossible, then you have to buy copper from modern society to the Qing Dynasty, from the Qing Dynasty to exchange gold, silver and grain to modern society, instead of pouring grain from modern times to the Qing Dynasty, and then buy copper from the Qing Dynasty back to modern times, do you say this reason? ”

"Well, that's right!" Zhang Xinda finally thought about it, "In other words, I should buy copper in the modern society, and then give it to the Qing Dynasty over there, and then you go and exchange the copper for silver, gold, and grain for me, and I will take your gold, silver, and grain to sell in the modern society?" ”

"Hehe, that's right." Li Yongji nodded, "You buy a kilogram of rice for 2.68 yuan in modern society, and if you buy grain with copper money here, it is equivalent to 1.97 yuan a kilogram, so it is still cheaper in the Qing Dynasty." ”

"Got it!" Zhang Xinda nodded, with a look of sudden realization, "So it's best for me to buy copper from modern society and send it to the Qing Dynasty, and then exchange copper for silver or gold to ship it to modern society?" If it is grain, it is better to purchase grain from the Qing Dynasty with copper to sell in modern society, right? ”

"That's right!" Li Yongji smiled and nodded, "So what you said earlier is right, pouring copper is the king's way, but it should be the other way around, get copper from modern society and go to me." From the perspective of pouring gold, it is more profitable to exchange copper for gold than to pour silver for gold. ”

"That's clear." Zhang Xinda said, "In the future, I will not give you silver, but give you copper, how much copper is needed, scrap copper, the quality is poor, more than 30,000 a ton, then the price difference will be more!" ”

"What about the grain?"

"Of course, food is important, but considering the economic problems and the cost-effectiveness ratio of the transmission tonnage, I will still provide you with rice pesticides and fertilizers in the future, and you can grow your own food over there." Zhang Xinda said, "I planted grain for me, I sold it for copper in modern society, and then gave it to you, quack, I got rich, I got rich, I was going to get rich!" ”

"I'm not asking you this!" Li Yongji was speechless for a while, "I'm asking what to do with the food you sent me?" And send it back to you? ”

"Not really." Zhang Xinda said, "It's too much of a waste of energy to come and go, and besides, if I send you food, you sell it, and just collect money or gold, if you collect money and gold, you still make money, we have analyzed it before." ”

"Well, well, that's it." Li Yongji nodded.

"Oh, by the way, I almost forgot one more thing just by talking about this." Zhang Xinda suddenly said, "Red label, cardboard box with red label paper, you hurry up." ”

"Red label?" With doubts, Li Yongji took a look, and sure enough, he found a cardboard box with a red label.

Gritting his teeth, Li Yongji used the little strength he had just recovered to slowly walk over, unfastened the rope, and found that there were some animals inside.

Inside are a meowing cat, a dying chick, a gecko in a sealed small glass tank, and a closed glass ecological ball, which contains a small fish and some algae and aquatic plants.

"What's going on?" Li Yongji asked immediately.

"Obviously, it's to be a living body." Zhang Xinda said over there, "You said earlier that you can't transmit humans, but you didn't say that you can't transmit other animals, so I want to see if you can transmit living creatures through guò this kind of transmission." As you can see, kittens represent mammals, chicks represent birds, fish are fish, and chameleons are reptiles. Hey, is everything over there alive? ”

Glancing at those animals, Li Yongji nodded: "They are all still alive, but they all look a little sluggish." ”

"Haha, that means live animals can teleport." Zhang Xinda smiled and nodded, "Not bad, it's safe now, okay, I'm tired, I want to sleep immediately, you can play by yourself first, that's it, hang up." ”