My main world is in Naruto

Chahan Temul, king of Ruyang, the marshal of the world's soldiers and horses, personally came to the Yellow River to supervise the battle.Xu Shouhui's Red Scarf Army was able to control the Yellow River ferry because they copied the Mongolian catapults.

Chahantemuir tried using scarecrows to pretend to be soldiers to cross the river in the fog.This is also learned from the arrows borrowed from the straw boats of the Three Kingdoms.Xu Shouhui's men didn't know any straw boat plan.But Extinction gave the order.In heavy fog, enemy troops crossing the river can use kerosene to burn the river.It is a special earthen jar with a small mouth.The jar was filled with oil, the cork at the mouth of the jar was unplugged, the jar was sealed with explosives and then driven into the river with a catapult.The explosive exploded and ignited the kerosene in the tank.There is almost no solution to the problem of noodles catching fire in this era when all boats are made of wood.

Although there are no major oil and gas producing areas in the south.But the location of the extinction of the Luoyang Mawa Oilfield is still known.It can be said that no matter which province in China Xu Dali (the protagonist, male) is reborn.gold, silver and copper mines in this province.He remembered the oil fields and everything.These things are essential knowledge for time travellers.And it’s the kind of thing I wear four times a year.

If you can't use tactics, you can't attack by force.Someone suggested that the king of Ruyang build a larger catapult.Northern wood is hard.Catapults can be made larger.This way the boulder can be thrown towards the south bank.The southern catapults could not reach the north shore.This really troubles the Red Scarf Army.Xu Shouhui asked for advice on extinction.Extinction: "We don't expect the stone to hit the north bank? We just want it to hit the middle of the Yellow River. This will make the catapult retreat. Build earth slopes along the Yellow River. This way the catapult will gain an advantage from height. This way our catapult will The car can still hit the middle of the river." After thinking for a while, Miejie said: "Ask Fu Youde to find Ding Minjun. Let her men see if they can increase the arm length of the catapult by wrapping the wood with iron. In this way, our bombs can also hit the other side. Come. In addition, make more mobile catapults with horse-drawn carriages. It is difficult to make large catapults that must go through, and the time interval between each stone throw is relatively long. We win with numbers. Wait for him to swarm up during the interval between stone throws, and use white-haired bombs to believe what else. The boat can cross the shore.”

The Red Turban Army continued to build fortifications on the south bank of the Yellow River.In order to speed up construction, an asphalt plant was built in the oil mining area.Asphalt can be produced wherever there is oil.First, roads can be built, and asphalt roads can be made by mixing in gravel.This way the carriage runs very steadily.Cheaper than cement road.

Second, asphalt can be applied to the bottom of the ship.This resists underwater erosion.Asphalt is very effective in waterproofing and moisture-proofing.Before there was a new type of anti-corrosion paint, various countries had been using asphalt to coat the bottom of ships to prevent corrosion.There are even holes in some wooden boats (boats) that can be filled directly with asphalt mixed with twine.

Third, you can waterproof the roof.Some officers and soldiers had leaking roofs, so they heated some asphalt from the construction site and poured it directly on the roof.The roof can be repaired by smoothing it with small tiles.There are even some adobe houses where the bottom half of the wall is covered with asphalt to make it waterproof.In this era, only a few people could afford brick or stone houses.Most of them are still adobe houses.As long as the roof and bottom of the walls are coated with asphalt, it can prevent moisture and water seepage.An adobe house can last for hundreds of years.

Not to mention that the private school established by Xu Shouhui could use asphalt on one wall as a blackboard.You can make anything from chalk by yourself.

The Mawa Oilfield in Luoyang has stimulated several industries at once.People from all walks of life do not care about anything else.Even if you build a blackboard to educate people, you still need to buy some asphalt.Some people even coated Curry's sword with asphalt for protection.The swords that get rusty every year are a huge expense for the sect.