The second one is sent.

I'm going to explode the juhua in front, whether it's a week or a week, everyone is crazy about topping!

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For the Carl and Casper brothers, the abacus was indeed not an unfinished work, and in less than a day, Meng Han got a sample of the abacus. There were three of them, one for Meng Han, one each for Grace and Alice. The orthodox abacus, with two beads on the top and five beads on the bottom, is a total of fifteen grids, presumably in a short period of time, the numbers used for accounting are enough.

"Alright, Grace, Alice, this is a very efficient calculation tool. Compared with calculators and computers that require electricity, the purely manual abacus can fully afford to be efficient in this magical world: "Now, let's learn how to use the abacus." ”

Five to four, three to five by two, a lot of formulas, Meng Han first took them out of his memory, and then piled them all up to Grace and Alice sisters. Their task is to memorize these mantras in a single day.

It didn't take too long for the unfamiliar fingers to go from the first contact with the abacus to the decent play, but after three or five days, the two women found that their calculation speed had greatly improved. Moreover, the numbers that can be calculated are getting bigger and bigger.

Especially when the Arabic numerals taught by the lord were combined with the abacus, the two women were surprised to find that it would not take long for a thick ledger to be taken, and all the results would be wiped out in the crackling sound of the abacus beads. This is used to settle accounts, and it is simply an artifact.

I don't know how the lord came up with this kind of thing, Alice has not seen how people outside calculate accounts, those primitive methods, the speed is incomparable. Unless you are an old man for many years, you can calculate the results quickly and accurately. Now with the artifact of abacus, the future accounting work can only be simpler and simpler.

"My lord, will such a thing be learned by others?" Alice couldn't hold a good thing in her hand, and as soon as she got it in her hand, she would wonder if others would come to grab it.

"Of course, as long as you take it out, someone will learn it very quickly. This is not difficult, you can just find a carpenter and make it. Meng Han replied without hesitation, this is not a high-tech thing, others only need to look at it, and they will know how to do it. It's just that the initial mantra is a bit troublesome, and ordinary people may not be able to grasp it quickly.

"What then?" Alice was immediately a little anxious when she heard Meng Han say that it was easy to imitate.

"What are you afraid of, they have to learn, let them learn. Meng Han didn't care: "It's a big deal, when they find out, we take the initiative to sell it to them, and we can make a little money." "Now there is no force, no matter what kind of idea, someone will plagiarize, I am used to seeing the copycat version of the original world, and Meng Han doesn't feel pity for this at all.

Even if it is a mercenary suit, there is now a replica version in the field, and the sales are very good, which Alice told Meng Han after she returned. There is no patent law in this world, so it is impossible to apply for protection. Fortunately, there is the core technology of making the base surface of the scroll, otherwise there are really no special products in Huangsha Town.

"Don't worry!" Seeing that the two girls were a little cautious, Meng Han was also secretly amused in his heart, he had not yet reached the point where he was so cautious because of an abacus: "When they learn, we will have better things." They can't finish learning. ”

After Meng Han's enlightenment, the two girls were relieved. However, I also made up my mind in my heart that these things must be placed in a hidden place, even when they are used, they must be used carefully, and they must not be exposed casually.

At this moment, Meng Han didn't care about thinking about this, and he received a notice from the elf brothers again, saying that the elf clan was invited, or it was at the edge of the forest.

No need to ask, it must be the two big names of the elf clan last time, Meng Han was not surprised, went around in a circle, took Louisa and Louise with them, and went to the elf forest together.

When he arrived in the forest, Meng Han hadn't seen anyone yet, anyway, he was used to it, the big people of the elf clan generally didn't meet Meng Han, and the last time they met was because they wanted to dissipate their anger. Meng Han would not dwell on this kind of side matter, he found a tree stump and sat down, and the accustomed surname pointed to his shoulder with his hand, and Louise and Louisa walked over with the same customary surname, one rubbing his shoulders and the other beating his legs.

"How dare you let our noble elves serve you?" While enjoying himself, Meng Han suddenly heard a voice full of furious rage. Suddenly, a powerful coercion descended again. The only thing to be thankful for is that this time, because of the presence of sisters Louisa and Louise, Meng Han was not subjected to the bad treatment of being pressed to the ground and unable to breathe.

"Oops!" Meng Han scolded secretly in his heart, these sons have been accustomed to this kind of personal service of the elf sisters, and what's even worse is that the two girls are actually used to this kind of relationship with themselves, and they have not changed and converged at all because of the change of environment, but now they have been caught by the big men of the elf clan, and they can't rely on it.

Louise and Louisa obviously heard the angry voice as well, but neither of them seemed to have much change in their expressions, only paused, and continued to move.

"Not bad, not bad!" Meng Han couldn't help nodding secretly when he saw the two girls behaving like this, and praised without hesitation: "The sky is not shocked, it should be like this." ”

"What the hell is going on?" The angry voice seemed to be even more enraged, and the anger in the voice was as real as substance. Meng Han saw the appearance of the two women, and felt a lot more fearless, so he didn't speak, and waited slowly.

"Luisa, you come with me!" Seeing that this side is still going its own way, the elf in the dark is a little overwhelmed, and immediately starts calling Luisa over, she needs to know everything.

"Go ahead and explain. Seeing that Louisa didn't answer first, Meng Han actually raised his head as if asking himself, and his heart was even more proud, and he nodded to her gently.

Louisa quickly disappeared into the darkness of the forest, and Louise was still calmly rubbing Meng Han's shoulders.

After a long time, when Meng Han felt a little tired, there was finally movement in the forest. However, this time it was not the same furious voice at the beginning, but the elf who had negotiated the final conditions with him last time.

"You taught the two sisters the Ice Heart Technique?" the female elf's words were full of disbelief, "Did you create it yourself?"

"I don't think I've heard that others will, right?" Meng Han shrugged his shoulders and replied casually.

"So, do you mind if Louisa tells us this Ice Heart Formula?" the female elf asked again, but this time, there was a hint of anticipation in her tone.

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