Reincarnation of the powerful minister

After the affairs in hand finally came to an end and everything that should be done was done, Su Yan embarked on the journey back to Beijing.

This day is the fourth day of the twelfth lunar month, which is later than he expected.The cold road is difficult, even with the escort of Jin Yiwei, it will take fifteen or six days to travel, and it would be good to reach the capital on the [-]th of the twelfth lunar month.

Fortunately, when they returned to Beijing, they changed to a fairly spacious carriage. The interior of the carriage was covered with felt blankets and a burning charcoal basin, which kept the wind and snow out of the thick curtains.

When Su Yan came to Shaanxi, he was bumped by a carriage and turned into fried chestnuts.On the way back, I didn't feel much comfortable, bumping or bumping, slow or slow.

After walking in the wind and snow for more than ten days, the attendant Jin Yiwei reported that it was only a few tens of miles away from the capital, and it would take half a day to arrive.

Su Yan breathed a sigh of relief, and leaned limply on the cushion.

Horse-drawn carriages in this era run slowly, mainly because the axles of wooden wheels use two iron rings, one large and one small, with a large amount of grease injected into the middle for lubrication. When the wheels are running, the friction is relatively large, and the speed of the vehicle naturally cannot be increased.

The bump is because there is no shock absorber on the wooden wheel.

For the sake of his suffering butt and his skeleton that was about to fall apart, Su Yan thought all the way how to improve it and make it into a rolling wheel axle for future generations.

In fact, the principle is very simple, that is, between the original two iron rings, spherical iron balls are placed to reduce the friction force during the power transmission process by rolling, and improve the transmission efficiency of mechanical power.

In fact, the prototype of this technology appeared in the Yuan Dynasty. Guo Shoujing used the roller support structure in the astronomical instrument "armillary sphere" he invented, but no one has applied it to the wheel.

Speaking of it, many scientific inventions are actually the matter of piercing a piece of window paper.If it is pierced, it will suddenly become clear, and you will know everything after hearing it; if it is not pierced, you will not see an inch for hundreds of years.

Su Yan planned to speed up the establishment of the Tiangong Institute after returning to Beijing, and then throw the idea of ​​"rolling bearings" to those science and technology savages who are hidden in the folk, and let them study it.

——After all, he is not a science student, and he only knows a general principle for many things. As for how to make it specifically, how to proofread and improve it over and over again, it is natural for professionals to worry about it.Even if the process is a bit tortuous and the effect of the finished product is slightly worse, it is still a huge progress, isn't it?

As for wheel shock absorption, it is best to use rubber tires.

Although Daming did not produce rubber, Southeast Asia, which was called "Jiaozhi" in this era, was also a vassal state of Daming, and rubber trees grew all over the mountains and plains.

Tell Emperor Jinglong the usefulness of this rubber, and it shouldn't be too difficult for Jiaozhi to pay a tribute to a batch of raw rubber every year, right?

As for how to make mature rubber from raw rubber, Su Yan once saw a word in the Internet browsing, "vulcanized rubber". It seems that sulfur was used earlier?

There is no shortage of large sulfur inscriptions, and there is a lot of soil, which is used by Taoists to make alchemy, folks use it to make firecrackers, and Chinese medicine uses it to kill insects and treat scabies.

As for the amount of sulfur to be added to the raw rubber, the temperature and time of vulcanization, Su Yan had no idea.Then let the technicians try it bit by bit.

As long as vulcanized rubber can be produced and made into rubber tires, regardless of whether its elasticity, heat resistance, and tensile strength meet the standards of later generations, it can surpass the West by 200 years.

This is much more feasible than medical penicillin, and it is widely used, not only for civilian use, but also for military development.Just imagine if rolling bearings and rubber tires can be installed on the vehicles transporting baggage for the army, how many times will the efficiency of transporting grain and grass be higher?

To what extent will the speed of the vehicle determine the victory or defeat of a war when the soldiers and horses are not moved, and the food and grass go first?

The more Su Yan thought about it, the more his blood boiled, he punched his palm, and shouted excitedly: "It's decided, the first project after the establishment of Tiangong Institute is this!"

Jing Hong chased and rode a horse outside the carriage, and asked through the curtain after hearing the sound, "What orders does your lord have?"

Su Yan opened the curtains, his face was baked pink and white by the charcoal fire, and now he was shivered by the cold wind, "It's nothing, I was talking to myself... Well, what does it smell like?"

Jing Hong chased and turned to look at the sparse wild plum grove beside the road, "Smell of wintersweet."

Su Yan sniffed hard, "There seems to be something mixed in the fragrance of the flowers, which is a little pungent..." He suddenly had a flash of inspiration, "It's sulfur. I was thinking about sulfur just now, and now I smell it, even better than Cao Cao. spirit."

Jing Hongzhui nodded: "It smells like sulfur, there seems to be a hot spring near here."

Gao Shuo came over and said, "That's right, this place is called 'Relong Valley'. The old man said that there is a hot dragon at the bottom, and it will come out of the hot spring as soon as you turn over, and it will not freeze even in severe cold. Master Su, look at the wintersweet in the valley, It's very good to open, but it's smoked by the heat."

Now Su Yan became a bit interested and asked, "How's the temperature? Can I take a bath?"

Gao Shuo seemed to be quite familiar with Shuntian Prefecture, where the capital is located, and immediately replied: "Most of them are boiling springs, which can boil eggs, and have a strong sulfur smell. But there are also a few waters with moderate water temperature, and one of them has no peculiar smell, which is suitable for soaking. Take a bath. The people nearby call it 'Meixian Tang', saying that it is the spiritual spring where Meixian bathed, and they occasionally bring tributes to worship on weekdays, but no one dares to go into the water, fearing that Meixian will show her spirit and punish her."

Su Yan smiled and said, "I'm not afraid. If the plum fairy appears, I'll follow the example of the cowherd and hide her feather clothes first. Let's go and see the plum fairy soup."

It was evening, and I couldn't reach Wuliyi Station at night, so I could only stay in the wild for one night, and I could enter the border of Gyeonggi at noon the next day.Commander Longquan gave an order, and the Jinyi guards set up camp on the spot one after another, burying pots and cooking.

Su Yan led Jing Hong to chase Gao Shuo, Chu Yuan and other ten Jinyi guards, and said hello to Long Quan, saying that he was going to the nearby valley to bathe.

Longquan was worried, and sent dozens of capable guards to follow and protect.

Gao Shuo led the way, and after walking for more than two quarters of an hour on the narrow and winding wild road, he saw the "Meixian Tang" embedded in the mountain depression.

This natural hot spring is not too big. According to Su Yan's visual inspection, it is less than [-] square meters, and there are two smaller auxiliary pools next to the main pool.There are large and small gray rocks around the spring, and there are traces of smoke left by villagers burning incense.The vegetation on the outside of the rock is lush, and there are a few old plum trees with at least a hundred years old, sticking their branches above the mouth of the spring, and the tender yellow petals fall on the steaming water from time to time.

Su Yan liked this hot spring very much when he saw it.

He has always had the habit of soaking in hot springs in central Fujian.After all, Fuzhou is the ancient capital of hot springs. There are more than 200 hot springs in the city, which have been famous all over the country since the Jin Dynasty. Countless literati came here to write poems and songs praising hot springs. It can be said that half of the city is full of tea and half of springs.

He reached out to test the water temperature, then turned to look at Chu Yuan and the others.

The brocade guards immediately understood what he meant.Chu Yuan smiled and said: "My lord, don't worry about it, the humble staff and others will pull up the curtain outside the pool to keep out the wind."

Su Yan waved his hand: "You don't know the fun of soaking in wild springs. When the curtain is drawn, all the scenery is covered. What's the point?"

"Why don't we retreat a hundred paces away and guard this area so that the villagers or wild animals who stray into the place won't disturb your lord?" Gao Shuo suggested.

Su Yan nodded, and said, "Two hundred... no, three hundred steps." It's about 200 meters away, and the lush forest must not be seen, so you don't have to worry about running out while soaking.Although they are all men, he does not have exhibitionism, so there is no need for people to visit.

Chu Yuan took the order, and retreated in all directions with dozens of Jin Yiwei, and his figure quickly disappeared among the trees.

Before Gao Shuo left, he saw Jing Hongzhui standing by the rock, and he didn't seem to intend to leave. He felt very upset, and deliberately asked, "Why is Jing Hong's guard still standing here? Didn't you hear Master Su's order?"

Jing Hong chased her sword and turned her back to the hot spring, expressionless: "I'm different."

"What's the difference?"

"I am your lord's bodyguard."

Gao Shuo taunted in a low voice: "It's really strange. I haven't heard of anyone's personal guards, who even stick to the master when he takes a bath. When your lord is going to bridal chamber in the future, will you stick to the bed and hang clothes for the couple? use?"

Jing Hongzhui didn't bother to argue with others, and gave him an extremely sharp look, forcing the other party back half a step with an invisible evil spirit.Gao Shuo's chest was filled with qi and blood, his face turned pale, but he gritted his teeth and refused to leave.

In that room, Su Yan had already taken off his outer robe, and was leaning on the largest rock. Turning his head, he saw the two confronting each other like cockfights, and raised his voice and asked, "You two are still not leaving, do you want to come down to have sex? Come on, anyway. There are two small pools next to it, why don't you each occupy one?"

Gao Shuo was a little embarrassed by his frank question, and shouted at Jing Hong, "Go! Do you know how to avoid suspicion? Dozens of eyes are watching. If you still refuse to leave, what will others think of you?" The relationship with Mr. Su?"

Love how to see how to see, what to do with me.Jing Hongzhui really wanted to answer this way, but considering Master Su's reputation, she had to leave for now.

Before he left, he said to Su Yan: "My lord calls me for something, I can hear you." The distance of three hundred steps was nothing to him, and he could even hear the rustling of cloth rubbing under his concentration.

As soon as the two left, the world was finally quiet. Su Yan took off all his clothes, even untied his bun, slipped into the warm spring water, and let out a comfortable breath.

Jing Hong walked [-] steps in the opposite direction to Gao Shuo, stopped, jumped onto a snow-covered black pine, and meditated with her eyes closed while holding her sword.

Not long after, a vague flute sound was mixed in the cold wind and blew to his ears.

Compared with the ordinary flute sound, this sound is clearer and sharper, like a crane, playing a strange tune intermittently.

This special tone...is the bone flute "Jiugao"!Jing Hongzhui opened her eyes suddenly, a trace of surprise flashed in her eyes: Is it him?Why did he suddenly appear here and what did he come for?

Jing Hongzhui frowned, suspecting that the other party was after her.If he avoids seeing him, there is a high probability that he will approach without giving up, and if there is a conflict at that time, I am afraid that he will really disturb Mr. Su.

It's better to strike first and send the opponent away.Anyway, there are dozens of Jinyi Guards nearby, all of whom are elites with good skills, and there are more than enough guards.

The sound of the bone flute was getting closer and closer, Jing Hongzhui's expression was cold, pointing her toes, holding the sword and flying towards the mountain peak.

His figure flickered like a ghost in the twilight, like a wisp of smoke and a remnant soul, and after a while, he left the mountain where "Meixian Tang" was located, and appeared on the fan-shaped boulder protruding halfway up the mountain.

The boulder soared into the sky, and below was a dark valley, with a man in gray standing on the edge, playing a slender brown bone flute made of crane bones with his back facing him.

The man in gray had ordinary clothes and an ordinary figure. Even his long hair was tied up with a very ordinary thin hemp rope and tied into a neat and slightly youthful high ponytail.

Sensing the breath behind him, he stopped whimpering the flute, turned to look at Jing Hongzhui, and said softly: "Brother."