Tibet

Dynamite is much safer than nitroglycerine and does not explode easily unless detonated with gunpowder.

However, the power of explosives mixed with diatomaceous earth is lower than that of nitroglycerin, but safety is more important. The power of explosives is sufficient for this era. How to improve it in the future is a matter for later generations.

Li Ye made a new iron fire thunder and mixed half of the explosives into it.

He asked everyone to retreat three hundred steps away and stare at the stone house. For a moment, "Boom!" There was an earth-shattering explosion. Thick smoke rose into the sky and gravel flew. Everyone was stunned. They had seen it countless times. The Iron Fire Thunder exploded, but its power was far from comparable to the current explosion.

This was just three pounds of iron fire thunder, but it blew the stone house to the ground. Everyone's heart was pounding. What kind of new gunpowder was this? It was simply terrifying.

Li Ye narrowed his eyes. With the yellow explosives and the exquisite craftsmanship of the Tang Dynasty craftsmen, he could completely sweep the world.

"Your Highness, is this new gunpowder?" Several gunpowder makers asked in shock.

"This is made of gunpowder. It can be called explosives or strong explosives. In the future, it can be made of bamboo tubes or wooden tubes. It does not have to be an iron shell."

"Is the gunpowder useless?"

Li Ye shook his head, "This kind of yellow explosive must be detonated with gunpowder. In addition, yellow oil is very dangerous. It is afraid of heat and vibration, and it is easy to explode. It is safer when mixed with sand and soil. You can continue to study, such as soaking it with cotton wool. After adding nitre and green vitriol, you will get another more powerful gunpowder cotton, which can be studied slowly. "

Li Ye said to Hu Jiuling again: "The safety system is the most important. You draft it immediately. Everyone must act in accordance with the regulations."

"I humbly obey my orders!"

Hu Jiuling hesitated and then said: "Beizhi once served as the director of the Smelting Department of Shaofu Temple, and he knows a lot about copper and silver smelting. I feel that green vitriol oil seems to be very useful for smelting gold, silver and copper. I suggest you make it on a large scale? "

Li Ye nodded. An important role of sulfuric acid is in metal smelting. Hu Jiuling is very professional and can be seen at a glance.

Li Ye smiled slightly and said: "That's right. The Persians also use green vitriol oil. They use it to refine gold. They will set up an Oil Production Department under the Firearms and Gunpowder Bureau to specialize in the production of green vitriol oil and nitre. You will give the order. Come and recommend, if you are willing to take on a concurrent role, I will give special approval for the required manpower, material and financial resources. In a word, we will establish it as soon as possible. "

Hu Jiuling was overjoyed. He did his best to serve as the director of the Oil Production Department.

"The humble job will start to be formed today!"

Entering February, Chang'an became obviously lively. Scholars from all over the country came to Chang'an one after another to prepare to participate in the imperial examination next month.

The Department of Rites originally planned that 20,000 scholars would come for reference, but unexpectedly the number of applicants exceeded 30,000, and more people were arriving one after another.

Accommodation in the city was obviously tight. All the inns were full, even outside the city. It was hard to find inns in the city. The government began to mobilize monasteries to house scholars, and many houses also rented out a few rooms temporarily to make a little money. .

With the addition of B\u0026Bs, the accommodation problem began to be alleviated.

The Pingan Inn in Xishi was also fully occupied. Wei Gao and his two friends Guo Jun and Su Hui returned to their respective ancestral homes in Chang'an during the New Year to celebrate the New Year. When they came back after the New Year, their rooms were no longer available, and the shopkeeper only reserved them for them. Got a room.

There was no other way, so the three of them had to share an upper room.

"Hurry up, you two, it's too late!" Wei Gao stood at the door and urged.

Guo Jun and Su Hui hurriedly put on their gauze hats, each equipped with a sword, and went out with Wei Gao. The three of them looked like rich young men. Not to mention the gorgeous swords, each of them also wore a piece of beautiful jade around his waist.

The three of them rushed out of the inn like a gust of wind.

A hundred steps away from the inn is the West Market Pier. There is a passenger ship to Han Chang'an City every half hour, and it does not stop running until midnight.

By this time, the river had thawed, and the temporary carriage buses between old and new Chang'an had stopped running, replaced by boat buses.

Boats are indeed much more comfortable than large carriages. First of all, they are not bumpy, have good ventilation, and can carry a large number of passengers.

There are two types of passenger ship buses. The first one sails at 3:30 every day. The main ship is a 500-stone car and ship with paddle wheels on both sides. It is driven by four strong men and can drive 30 long passenger ships. To transport thousands of people, the six fleets make three trips every day before dawn, and can transport more than 20,000 people to Chang'an.

Every evening these six fleets would make the same three trips to transport the lower class people back to Han Chang'an City after a hard day's work.

Another type of passenger bus is a 300-stone car and boat sailing with five boats. It runs every half an hour and is dedicated to picking up individual passengers.

Wei Gao and the three of them all grew up in Chang'an, and this was the first time they heard about the "public transportation boat". It was really new to them, and of course they wanted to try it.

The three of them rushed to the dock and saw that the fleet was about to set sail. The three of them shouted anxiously: "Wait for us!"

The ship slowed down for a moment, giving them a chance. The three of them jumped on board and got into the cabin. An old woman glared at them fiercely, "This is the women's cabin. Are you blind?"

The carriages had carriages exclusively for women, and the fleet also followed this tradition. The red painted boat was the cabin exclusively for women.

Only then did the three of them realize that there were more than twenty women sitting in the cabin. They all looked at them with pursed lips and smiles. There was no man. The three of them turned red and quickly jumped to the next cabin. Fortunately, they saw a few women in the back cabin. businessmen, and several young men.

The three of them breathed a sigh of relief and quickly found a seat to sit down.

At this time, a boatman came over to sell tickets. "How much is it?" Wei Gao asked.

"Three cents per person, extra for bringing luggage, and one cent for each piece of luggage."

"Three cents!" Guo Jun exclaimed.

The boatman thought they were too expensive, so he glared at them, "If you think it's too expensive, you can take the long boat in the morning. That one only costs a penny."

"no!"

Guo Jun quickly explained: "I didn't expect it to be so cheap!"

The boatman chuckled, "Of course it's cheap. This boat doesn't make a penny, and sometimes it even loses money. It all depends on government subsidies. Otherwise, how can we call it public transportation?"

Su Hui quickly took out nine coins and gave it to the boatman. The boatman took the money and left.

Wei Gao whispered: "I understand, this is actually a boat for the people at the bottom, so it is very cheap."

Guo Jun nodded, "Rich people already ride in horse-drawn carriages. Who cares about taking this kind of boat? But it seems to be very empty and more comfortable!"

A dark-faced young man next to him sneered and said: "You will know if you try it in the morning. It is crowded, and only thirty people can fit in the cabin. Fifty people squeezed in, and the stench is overwhelming. Fortunately, women have to be alone." cabin, otherwise it will be miserable.”

"That's it, thank you! Thank you!"

At this time, a boatman shouted: "Sail!"

The hull of the ship swayed, and then there was the rumble of the waterwheel in front, and the fleet set sail.