Without a carriage, Song Che could only call it a day early and return to Suzhou City on foot.

After returning to the city, Song Che disassembled the spear into parts, went to the most famous blacksmith shop in the city, and ordered twenty pieces at the price of ten taels each.

"No matter what method you use, the workmanship must be fine, if the acceptance does not meet my requirements, I will not settle the final payment."

"Uncle, rest assured, my Wang blacksmith has been beating iron for more than 20 years, and he has never disappointed the guests, and he guarantees that within half a month, the twenty pieces of iron you ordered will be exactly the same."

"If so, there is a reward!"

……

The next day, Song Che changed to a new carriage, and by the way, he also went to the tavern to buy twenty small wine gourds.

In the morning, he successfully detonated the first fire gourd, which was several times stronger than the previous earth explosives, and he imitated the style of the grenade, and installed a ring pulling device at the mouth of the gourd, just pull the buckle, and the flint can be rubbed to produce sparks, thereby igniting the lead, so that the throwing time can be controlled, and the safety and accuracy can be improved.

Drawing the same scoop, with 14 catties of explosives, 19 fire gourds were made.

Gunpowder was very susceptible to moisture, so Song Che put gunpowder into the jar like pickled vegetables and sealed it tightly.

In the afternoon, work began on making generators -

First, four small coils are made with copper wire, each coil is wound around 500 turns, and then the coils are fixed on the wooden board in turn at four corners, and the copper wire is connected end to end, and then a round hole is dug in the center of the wooden board, and a round rod is inserted as a bearing, and two magnets are fixed at the end of the bearing.

Although the principle is simple, the production details are extremely complex, and it took Song Che two full days to complete the prototype.

Put two copper wires on the mobile phone charging head, plug the data cable into the mobile phone electrical appliances, and then turn the generator bearing like a "hand-cranked tractor".

Shake the coil, with the magnet to do the cutting magnetic inductance line movement, as the hand speed is getting faster and faster, the mobile phone suddenly "buzzes", showing that it is charging.

It worked.

As soon as Song Che stopped shaking, the phone would lose power.

In just a few moments, he was already sweating profusely.

It's not hard to make a simple generator, but it's how to get long-lasting power that is the biggest challenge.

Even modern power generation is the use of natural energy sources such as wind, hydropower, tides, and thermal power, among which hydropower is the most common - the use of flowing water potential energy, impact the spiral device, thereby converting into kinetic energy, driving the coil to rotate.

There happened to be a trickling stream in front of me.

On the third day, Song Che made a simple water windmill out of wood chips, installed the water windmill on the generator bearing, and then found a place in the valley where there was a relatively turbulent water, and set the generator on the creek.

The water rushes into the water windmill, causing the coil to rotate rapidly, and the generator starts to operate.

After Song Che charged his mobile phone, he sat by the stream for an afternoon, but when he picked up the battery and looked at it, it was less than one-fifth of the charge.

With such an output voltage, charging the mobile phone is acceptable, and it is definitely not enough to want a charging stick.

According to the principle, four 500-turn electric circles, even if they can't generate the rated voltage, it will not be much worse, and the biggest problem should be the speed of the electric circle.

The faster it rotates, the faster the magnetic inductance line will be cut, and the higher the voltage emitted, but the bearing is wooden, and the iron rotor technology is too high, and it cannot be reproduced in ancient times.

In order to solve the problem, one is to find a way to improve the lubrication of the bearing, and the other is to find a stronger hydraulic potential energy.

But in any case, the generator is done.

While it was still dark, Song Che picked some resin in the valley, which is a good insulator and can be used as a wire pack after drying. Leather can also be used as a socket.

"Huh" Song Che shook off a handful ......of sweat, looked up at the sky, and the sunset was already in the mountains.

It has been six days since I moved into the cottage, I go out early and return late every day, and I have never asked about business, and I have neglected my wife at home, so it is time to end this seclusion and return to normal life.

Song Che loaded all the finished products and materials into the carriage, locked the gate of the grass house, and returned to Suzhou City at sunset.

……

After returning home, Song Che borrowed the axle technique of the carriage, ran the round wooden stick through hot oil to make it smoother and tougher, and then applied a layer of lubricating grease to the bearing mouth, and now the coil can rotate more than ten times with a slight flick.

The Shen family is a big family, there are three landscape ponds alone, Song Che asked his subordinates to dig a small ditch, introduce the pond water into the channel from top to bottom, and then jam the generator on both sides of the channel, so that the water flow continues to hit the windmill, and the voltage emitted is obviously much higher.

With the battery capacity of Song Che's mobile phone, the conventional voltage can be fully charged in an hour, and it is not much slower to use this self-made generator.

After the generator was completed, Song Che charged the electric baton in the middle of the night, and got up the next morning to check that it was already full of power.

"Husband, are you going to become a drunkard? Why do you always hang a wine gourd around your waist? ”

"It's a beast whip wine, and I'll take a sip when I'm thirsty."

"That'...... Give me a taste too! ”

"Hey, this can't be easily tasted, this wine is very strong, and it will explode when you drink it!"

With silver in your pocket, an electric baton in your sleeve, a musket in your arms, and a gourd in your waist, that's called a sense of security!

……

In the days that followed, the people of Daliang were immersed in panic.

The Hu people in the northwest broke Xiliang, and every time they occupied a city, they slaughtered a city, and all the men were killed, and the women were used as cattle, which was simply miserable.

Xiliang is the elite of the Northwest Army, but it was defeated and retreated, Dongliang and Beiliang are difficult to be the gateway, Yongzhou is in danger, and Chang'an is also in danger.

Dirong in the north, all the way to Humen Pass, everywhere you go, there is not a single grass. The Jingzhou army fought a bloody battle with the enemy and suffered heavy casualties.

Humen Pass, Aoki Pass, Shanhaiguan, is the three major fortresses in the north, break one of them will be in danger in the north, if the sixteen states fall into the hands of Dijon again, the Central Plains is flat, there are no mountains and rivers to resist, with the heavy cavalry of Dijon, long drive straight into, the east is difficult to protect!

In the official history, the Northern Song Dynasty was so extinct, which caused the most unspeakable "Jingkang shame".

It is not difficult to find that the Great Liang and the Great Song Dynasty are almost mirrored by each other, and what happens in the parallel world may be slightly different, but the general direction is definitely the same.

In the past few years of the Great Liang Dynasty, it will definitely be difficult.

"In my opinion, either all the people are soldiers fighting with them, or they are wronged and pay tribute and protect themselves, they can't fight and can't fight, and they don't want to accompany them! It's all us ordinary people who are suffering! ”

At the daily dinner, as long as the old man has two glasses of wine, he will slap the table, blow his beard and stare at him, and talk about important national affairs.

Who wants to be a slave to the country?

"Are you burned to the eyebrows by the war? Still can't eat enough and can't afford to wear clothes? Oh...... You are so worried about the country and the people, if the army runs out, arrest you to fill the army, will you go? "The mother-in-law has always had a different opinion, she always thinks that if the family is good, the man is good, the children are good, then everything is fine.

"A woman's opinion!" The old man retorted: "I'm old, what battlefield do I still go to?" I'm going to go to war, who will give them money? Who pays them high taxes? The most annoying thing is that I donated so much money, but it didn't work at all, in my opinion, eighty percent of them were filled by those corrupt officials in the DPRK and China! ”

He said, and looked at Song Che again: "Virtuous son-in-law, do you think I am right?" ”

"Ahh Song Che spit out the chicken bones and nodded again and again: "Yes, yes, yes...... right"

The mother-in-law immediately retorted: "Yes, what's right? You men are all drunk and have a brain fever, after a battle, how many doors are hung with white silk, and how many women have to be widowed? ”

Song Che nodded: "What my mother said is not unreasonable......

"Humph!" The old man slapped the table: "If a man has no blood to protect his family and defend the country, where is your woman's birthday?" You're just widows, and we're losing our lives! ”

"Ouch, but don't say 'you', you were so scared that you couldn't get out of bed for three days when you were robbed by a bandit, so if you go to the battlefield, the first person to raise your hand and surrender is someone like you!"

"You...... You, you, you......"

"Daddy, we're full, you use ...... slowly"

Shen Wenjun saw that the situation was not good, and pulled Song Che's sleeve.

Song Che said in a low voice: "I haven't finished eating it in the bowl yet......"

Shen Wenjun whispered: "Eat again, there is no war at the border pass, our family will start the war first, which side are you standing on when you see it." ”

"Uh...... I'm also full, and my father and mother use it slowly. ”

The two joined hands, smeared oil on the soles of their feet, and slipped out of the dining room.