Seeing Sun Simiao's melancholy old face, Zhang Yi knew that their experiment might not even be completed at the most basic level. Pen, fun, pavilion www. biquge。 info

After all, he sighed in his heart, and saw Sun Simiao dragging his tired body towards him.

Now Sun Simiao is no longer half human, his white hair is scattered like straw, his eyes are blank, and the eye bags the size of two copper bells in his eye sockets are high and bulging, showing that this old man with a loving mind has not had a good rest for a long time.

The footsteps were a little staggering, but he still walked over, and it was not until he got close that he heard Sun Simiao open his mouth and let out a shriveled voice: "Go to the Taoist temple with the old Tao!" After saying that, he turned around and walked towards the back mountain with difficulty.

In the Tang Dynasty, where there was almost no industrial base, it was an impossible luxury to want to rely on a group of old Chinese medicine practitioners to create a hundred insect spirits.

It wasn't until he walked out of the distance that Sun Simiao's footsteps slowed down, and he only heard him say: "We failed!" ”

The voice was very flat, as if there was no emotion, but Zhang Yi could hear it, and the seemingly emotionless words were actually filled with a sense of shame and self-blame.

There is no doubt that the locust plague is terrible, although it has long been known that it is impossible to develop pesticides, but Sun Simiao still did it. Not only did he do it himself, but he even pulled a group of imperial doctors to do it together, and after more than a month, when the locusts began to emerge, he still did not succeed.

Sun Simiao has never even slept soundly for more than 30 days and nights, and he will wake up from his dream in the middle of the night, because the scenes of the locust plague in the early years are like pictures constantly echoing in his mind. He was afraid, he was afraid that the scene would be staged again, so he tried his best to hope that the pesticide could be successfully developed.

Whether it was the formula given by Zhang Yi or his idea of using arsenic as the main ingredient, they all failed......

"What did you fail to do?" Zhang Yi asked.

"We only made formaldehyde, or read the wood dry distillation method you wrote, and tried dozens of times before it succeeded!" Sun Simiao simply sat on the ground and said with a wry smile: "As for the trichloroacetaldehyde written on your recipe, we can't get it at all!" ”

Zhang Yi not only brightened his eyes, but he didn't expect that these old Chinese medicine doctors could actually make formaldehyde with just a hastily written wood dry distillation method, this result really surprised him.

According to Zhang Yi's memory, the production of formaldehyde by wood dry distillation can be said to have a long history, and it was not until 1920 that this method was gradually replaced by other more advanced methods. Although the concentration of formaldehyde produced in this way is slightly lower, in fact, it is very suitable for the manufacture of parafen.

As for trichloroacetaldehyde, although it is difficult, it is not impossible to do, thinking of this, Zhang Yi asked curiously: "Since the Taoist has already made formaldehyde, although trichloroacetaldehyde is difficult, it should not be difficult?" ”

"Old man, beat you lazy to death!"

Sun Simiao burst into tears, then stood up angrily, slapped Zhang Yi's arm, and said angrily: "Since you know how to do it, why do you want the old man and others to waste time?" Do you know that there are signs of locust plague in the whole Guanzhong, and even in many other places, if there is a man-made disaster because of pesticides, you are the culprit! ”

Being slapped is nothing serious, but why did he suddenly become the culprit?

Zhang Yi felt that it was necessary for him to explain this issue clearly to Sun Simiao, so he said: "Daochang Sun, it's a little abrupt for you to say this, right?" As far as your prescription is concerned, the younger generation racked their brains to come up with it, and it was thankless to work with me, but it became an intoxicating person for the ages? ”

"Are you embarrassed? I ask you, can you do it? Sun Simiao still has to be unforgiving.

"No!" Zhang Yi shook his head resolutely, he has become a sinner for the ages, even if it will be a little bit, it will not be anymore!

Besides, as a great theorist, he must have theoretical knowledge, but his hands-on ability is far behind, and if he lets himself do experiments, Zhang Yi feels that the sky has turned gray. It's too late to hide from this troubled water, and drill into it when you're full?

"Really?" Sun Simiao was a little unconvinced.

In his opinion, since the person who can tell the method actually says that he can't, isn't this clearly a lie? But when I think about it, this method is like a prescription, it may not be difficult to remember a prescription, but what about the principle of medicine? If you don't study medicine, you don't know at all.

Thinking of this, Sun Simiao sighed, and then said weakly: "It seems that this locust plague is really unavoidable!" ”

.......

In the end, I still relented!

After tossing and turning in the Taoist temple for two days and three nights, Zhang Yi finally dragged his tired body back to the Viscount's Mansion. He can swear that even if he rode a horse all the way from Haifeng to Panyu in Lingnan, he had never had such a hard time.

In the past three days and two nights, Sun Simiao and Twelve, one kept urging, and the other always had a dead face, not to mention how uncomfortable it was. Fortunately, trichloroacetaldehyde was finally found in the end, otherwise I don't know how long I would have been tossed by these two masters.

As soon as he was lying on the bed, Zhang Yi found that something seemed to be wrong, Sun Simiao was also a person who had lived for nearly a hundred years, wiping his tears in front of him, and he was tired of looking for death.... He's just playing a bitter love scene!

I never thought that such a seemingly honest and harmless old man would deceive people to the point of perfection.

As soon as he thought of this, Zhang Yi was full of resentment towards Sun Simiao, and of course, he was also full of a sense of crisis from this society.

The science of chemistry is not something that Datang should have, and even its ancestors are still guarding the elixir furnace and playing alchemy one by one, will the hand he exposed be regarded as an outlier? Thinking about it carefully, Zhang Yi felt that this was definitely not a good sign!

When he tried his best to control himself from thinking about those things, a pair of gentle little hands appeared on his head, and at the same time, there was a rather nervous breathing sound.

Then the little hand is very gentle and keeps tapping back and forth on the head, the technique is a little jerky, but it is indeed very comfortable, and the brain cells begin to become active in an instant, and then as time goes by, the little hand becomes a little tired, and the movement becomes slower and slower.... Getting slower and slower!

It's comfortably tight, will Zhang Yi be willing to stop? As soon as the rewind was stretched, he was about to turn his head back and encourage the man for a few words, but his head had just raised two balls of tenderness and put it on his head.

"Yikes! ~~" Yunren exclaimed, and just as he spoke, he stopped dumbly.

"What's wrong?" Zhang Yi squinted his eyes, and the moment his eyelashes expanded slightly, he saw Yunren's little face that was already red and about to drip water.

"Young Master, you.... You just... Just now...".....

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