The ancients actually had a concept of temperature and humidity for a long time.

As early as the Western Han Dynasty, there were written records about this aspect, but at that time only this concept was proposed, and most of them were about the latter.

There was a proverb in the Eastern Han Dynasty, called: The drum is sounding when the sun is dry, and the bell is ringing when the rain falls.

Drums and bells here refer to the phenomenon that when it is hot and dry on a sunny day, the surface of the drum is sometimes affected and the vibration makes a sound, and when it rains, the bell will sound slightly due to the humidity.

There are temperature and humidity measuring devices in modern times, and there were similar things in ancient times.

This effect can be achieved through the strings, if the strings are loose and the sound quality is not good, it means that the humidity in the air has increased, and vice versa.

In the Later Qing Dynasty, some people even through this phenomenon, made a damp detector, there is a square garden outside, a built-in needle, can rotate left and right, the temperature is high will be dry, the needle to the left, the humidity is high to the right, between the millimeters is not much worse than the accuracy of modern instruments.

It's a pity that with the changes of history, this kind of thing has been lost in the long river of time and can no longer be seen.

And in the 5,000-year history of China, there are many things that have disappeared in this way.

Du Shen had the intention to instill some ideas in this area to the apprentices, so he told everything he knew, and even explained the principle of the drying and humidifier of the Houqing Dynasty.

For a while, after listening to this, the three apprentices all showed thoughtful expressions.

Especially Zhang Hao, his brows were furrowed, as if he was thinking about something, which made Du Shen take a second look.

In the end, he is his eldest apprentice, and his personality is different from Zhao Xiu and Xu Pengju, and he is really interested in the knowledge involving mathematics, physics and chemistry, if nothing else, I am afraid that he will be the one who can achieve achievements in this area in the future.

Thinking of this, Du Shen smiled, clapped his hands and said, "Everything that should be said is finished, but there is something to be left to you to do as a teacher." ”

Zhang Hao and the others were slightly stunned, and said in unison: "Please give instructions from the master." ”

Du Shen pointed to the large green shoots in the greenhouse and said: "Remove some of these newly sprouted seedlings, try not to be too crowded, it is best to have two buds and three buds in one inch." ”

Zhao Xiu was puzzled: "Dare to ask Master, why is this?" In vain, these germinated seeds are growing very well, so why should they be eliminated without disease or disaster? ”

The Chinese cabbage was planted by their own hands, carefully cared for, and carried water to water, but now they have to remove most of it, which is really distressing.

Xu Pengju also said: "Yes, Master, why do you need to be like this. ”

Zhang Hao was the only one, he thought about it for a while and thought of the purpose of his master.

Zhang Hao said tentatively: "I think it should be the environment in the greenhouse, and it can't support their growth!" ”

Du Shen nodded with a smile and said: "That's right, the so-called way of heaven is more than enough to make up for the deficiency, and the same is true for growing vegetables, which is a great test of land fertility, and some must be eliminated, otherwise, I'm afraid that none of this half an acre of cabbage can grow." ”

Zhao Xiu and Xu Pengju suddenly realized this, revealing a look of shame.

These are all disciples of Shizun, how can the senior brother know so much, it seems that he has to work harder.

Now that it is clear, there is no reason for hesitation.

At that moment, Zhang Hao and others worked hard.

When they do it, they are very careful, and their hearts are also painful, and when they are eliminated, they all choose those that are slightly worse, leaving only the strongest ones.

Even when Xu Pengju removed the seedlings, he left some left, wrapped the roots in soil, and it was not too dirty, and he stuffed it directly into his arms.

He was still reluctant to take out the cabbage seedlings he planted by himself, and planned to leave some to take home, and even thought about getting a small vegetable greenhouse, which didn't need to be big, just half a house.

Seeing this, Zhang Hao and Zhao Xiu also carried some into their arms.

Today they really experienced it, who knows the truth that Chinese food is hard work.

The people of the world are really bitter!

It is shameful to be with them, and the behavior of myself and others before is simply shameful.

……

At this time!

Inside the Royal Palace.

The atmosphere was very solemn.

The officials were silent.

Emperor Hongzhi's face was tired, and his eyebrows were full of sorrow.

In front of the imperial case, a letter was unfolded.

Since he succeeded to the throne, natural disasters and man-made disasters have continued, and now there is a great flood in the south, and the people have no harvest, and the displaced people are everywhere.

This letter came from Zhili.

A group of homeless people from all over the world, about 10,000 people begging along the road, stealing grain and grain, doing all kinds of evil, have become a mob, wandering to Zhili, and even some people are nowhere to be found, guessing that they are coming to the capital.

"The secretaries have a good plan......

Emperor Hongzhi sighed, his straight back was a little stiff, he was in his thirties and was in the prime of life, but he showed his old state.

Xu Pu, the first assistant of the cabinet, sighed and said, "Your Majesty, these mobs have to be taken seriously, if they are not handled properly, they may cause turmoil." ”

Saying that, he looked at Liu Jian, he was old, he always felt that he had insufficient energy in the past two years, and he was powerless in many things, and only Liu Jian could replace him in the future, so he just said a few words and did work for Liu Jian.

Liu Jian will be careful, straighten his expression, and said: "The minister thinks that the mob is a bit too much, they are all the people of the Ming Dynasty, if it were not for natural disasters, how could they have traveled thousands of miles to evolve like this, so Your Majesty should cheer up, allocate funds for disaster relief, and quickly settle down these displaced people as the king." ”

Ma Dongyang and Xie Qian also followed: "Please Your Majesty quickly allocate funds for disaster relief." ”

It was rare for the civil and military officials to agree on this matter, whether it was the British Duke Zhang Mao, or the Duke of Wei Xu Gongfu, and other martial nobles, they all thought that it should be so.

How did Emperor Hongzhi not know the truth of allocating funds for disaster relief, but money was a problem, he sighed and said: "Where did the disaster relief silver come from?" ”

The household servant said: "The ministers think that it should be taken out from the inside." ”

Inner ......

Emperor Hongzhi frowned, the blessing of Tuo Dushen, with the spread of chalk and other things in the north, the inner money is now a thousand silver, and the disaster relief can be allocated, and he is a money-burning master, only relying on the little silver in the inner money, and when the relief of the victims is finished, it is estimated that there is not much left.

Moreover, it is one thing to allocate funds for disaster relief, and it is another thing to resettle displaced people.

It's not that he's stingy, it's just that he relies on internal money alone, and he's really overstretched.

At this time, it was Zhang Mao who made a quick decision, he glanced at the household servant, and then stood up and said lightly: "I am waiting for the king's fortune and loyalty to the king, but now that the displaced people are everywhere, how can we not share worries for Your Majesty?" ”

"Your Majesty loves the people like a son, and he is really a benevolent monarch, but how dare we teach Your Majesty to work hard for the relief of the victims, and half of the treasury will be paid for this matter, and the rest will be replenished by internal funds."

Although Zhang Mao's voice was not tough, the meaning revealed in his words was very clear, he represented the opinions of the martial artists and stood firmly on the side of Emperor Hongzhi.

Emperor Hongzhi nodded secretly, but on the surface, he still said gently: "Do you have any other opinions?" ”

The ministers looked at each other and shook their heads.

"Only Your Majesty's Sacred Heart is arbitrary!"

Emperor Hongzhi bowed his head, and then said: "Since this is the case, the household department will formulate countermeasures to quickly stabilize the displaced people, and they must not be taught to suffer anymore." ”

After saying that, he sighed in his heart, if it weren't for the lack of internal funds, how could I be like this!

The displaced people and victims are all my brothers and sisters, and now they are wandering thousands of miles, which is really my fault.