Subsequently, Lin Feng took a group of surprised and excited bigwigs to the Department of Scientific Research, focusing on introducing them to the pattern of building around the library ring, and pointed out the direction of future astronomy, geography, mathematics and physics research, including the establishment of fine weights and measures standards.

In particular, Lin Feng talked about preparing to make a large clock that expresses time more finely, and finally developed into a clock that can be carried on the body and worn on the wrist, and at the same time divides an hour into two hours, each hour is divided into sixty minutes, and each minute is subdivided into sixty seconds, including Li Yu, who has never heard Lin Feng explain, a group of people are all stunned.

It was Chen Jun, the secretary of the Ministry of War, who was the first to think of what this kind of instrument would look like if it was applied to war.

Chen Jun's remark immediately resonated with others, who complained about the inconvenience of the twelve-hour clock.

A group of people walked and talked, and soon came to the large building of the War Research Department, where another set of palace walls was built, like a fort within a fort.

Lin Feng led these people along the corridor room on the left, visited the sample library of weapons of the past dynasties all the way, and then walked straight to the back of the ledge.

Turning around, more than two meters behind the wall is the mountain, just when a group of people were stunned, Lin Feng and Li Jingsui looked at each other and smiled, reached out to the grass next to the stone wall and groped for a while, "click", the stone door opened, revealing a long stone cave.

Li Jing naturally knew that this was the site of the old Li family's secret collection, and Da Lu laughed and took the lead in walking forward. Chen Jun, the secretary of the military department, and Tao Qian, the secretary of the household department, were all surprised and followed behind curiously.

Through a long hole made of roots and stones, a group of people came to a large valley in the mountains. Seeing someone coming, three people who were busy in a nearby cave ran over, and under the introduction of Li Yu, shouted long live.

Li Jing and Li Jingsui turned their heads to look at Lin Feng together, indicating that they were all waiting for his surprise.

Lin Feng smiled, took a bamboo tube from Lu Jiang in front of him, demonstrated a squinting action in front of him, and then handed it directly to Li Jing.

The emperor took it with some hesitation, put the appearance of Lin Feng in front of him, and immediately said "Huh", took the bamboo tube away from his eyes, carefully examined the structure of the bamboo tube, and came to the front of him again, aiming at the distance and slowly turning.

After reading it, Li Jing handed the telescope to Li Jingsui, who was stunned, and Li Jingsui was also startled.

passed it down one by one, and the most lucrative was passed to Chen Jun, the secretary of the Ministry of War. He was more frightened than the people in front of him, and immediately said loudly: "Detecting the enemy from a distance is really a sharp weapon of battle!" ”

Lin Feng immediately followed Chen Jun's train of thought and said: "The key to winning the war is to grasp the timing, and the timing is actually the grasp of time. With binoculars, we can definitely anticipate the enemy first, which is equivalent to grasping the initiative in the war, and the enemy wants to sneak attack us, but I am afraid that there will be no chance again! ”

"Good! Good! The invention of this Academy of Sciences has far exceeded my expectations, and I am very relieved! Li Jing thought that the telescope was the most embarrassing surprise, and sighed with his palms, ready to comment on the most embarrassing future.

At this time, Lin Feng stepped forward and reported softly: "Holy Lord, there is still the last finale weapon waiting for you to appreciate!" ”

"And?" Li Jing was a little surprised, what kind of invention could Lin Feng put to the bottom?

Lin Feng signaled to Lu Jiang, this old comrade took two other assistants, quickly ran to a cave on the left, first took out three pigs and tied them to a wooden stake, then took out a small clay pot, lit a thin rope stretched out of the jar with fire, threw it near the stake, and ran desperately behind with his hands covering his ears.

When Lu Jiang took out the clay pot, Lin Feng began to signal the bigwigs present to cover their ears with their hands, Rao is this, an earth-shattering loud bang erupted, scaring everyone into changing color. Six personal guards immediately protected Li Jing's front and back.

Looking at the three pigs again, they had all been blown up to a blur of flesh and blood, and a fist-sized red piece of flesh even flew down about three meters in front of the group, reminding them of how terrifying the explosion was just now.

Lin Feng looked at the stunned group of people in front of him, and said loudly: "This is the latest weapon developed by our Academy of Sciences, using porcelain bottles to contain carefully refined explosives, the explosion power is amazing. If my Datang wants to swing his army north, I will have to face the cavalry galloping across the country, but with such a sharp weapon, those cavalry will be terrified! ”

Chen Jun shook his head a little bit, stepped forward to measure the distance from the explosion point, bent down and looked at the three pig carcasses that were already mutilated, ran back, looked at Lin Feng in a daze, and asked anxiously: "Lord Lin, how much does this kind of sharp weapon cost?" Is it easy to find raw materials? Can it be mass-produced? ”

Lin Feng immediately replied with a smile: "This kind of sharp weapon is composed of saltpeter, sulfur, and charcoal in proportion, among which saltpeter has very few sources, and it is relatively difficult to find. As long as the source of sentinel stone and sulfur is solved, mass production will not be a problem! As for the cost, just now, the cost is about 700 Wen, which is equivalent to a high-grade steel knife, but the lethality it brings is definitely not comparable to a steel knife! ”

According to Lin Feng's arrangement, Lu Jiang slowly rolled saltpeter, sulfur, and charcoal into powder, and mixed them together according to the ratio of 75:10:15, which was basically the same as modern standard military black powder, and then put it into a clay pot to compress the explosion space, and the power was naturally extraordinary.

Lin Feng turned to Li Jing and asked loudly: "This kind of divine soldier will also give the name of the saint!" ”

It was only at this time that Li Jing came back to his senses, glanced at Li Jingsui, and said loudly: "The sound is earth-shattering, and the explosion is like thunder, so it's called earth-shaking thunder!" If this kind of magic weapon can be used on a large scale, the cavalry in the north will no longer be fearful, and the Northern Expedition will no longer be a difficult thing! ”

To tell the truth, since the old Li family took charge of Yang Wu and the Southern Tang Dynasty, they have not succeeded in fighting the Huai River at the peak of their military power, and the fear of the northern and even the Khitan majestic force is deeply imprinted in their bones, and it is not until today that they can be regarded as seeing a little hope.

Lin Feng immediately added fuel to the fire and said, "Holy Wisdom! The weapon 'Shocking Thunder' generates heat and forms an extraordinary explosive force, and its lethality is far from being comparable to cold weapons such as knives, guns, bows and arrows.

Considering the close distance of the 'Earthquake Thunder' strike, Wechen is working hard to invent a hot weapon that can shoot from a distance, and the soldiers can hold it in their hands and fire small explosives and projectiles at any time, once the two are successfully combined, those cavalry will soon be swept into the pile of historical papers! ”

This sentence seems to be really exaggerated now, but it is the rise of guns and explosives that the cavalry that dominates the world has slowly declined, and the defeat of cold weapons by hot weapons is also an inevitable trend of historical development. Lin Feng didn't mind speeding up the process of historical evolution!

"Zhishan, you are equivalent to taking a shortcut and completely intercepting other people's cavalry, admire and admire!" Li Jingsui, as the marshal of the world's soldiers and horses, was naturally overjoyed when he saw such a divine soldier, stepped forward and punched Lin Feng fiercely, and praised loudly.

Chen Jun and Tao Qian were both excited, and kept admiring the power of the "earth-shaking thunder".

Li Jing stood outside the crowd, smiling and watching several people excitedly communicate loudly around Lin Feng, and a burst of remorse suddenly appeared in his heart.

Two days ago, because Lin Feng was a little unhappy that he did not immediately agree to the royal family's family affairs, Li Jing intended to suppress Lin Feng, so the title of official given to him was mainly civil and military officials, no matter how you say it, I am a little sorry for Lin Feng's great contribution to easily seeking a country. Now it seems that if such a talent is annoyed and walks away, it will be an incalculable loss for Datang!

On the one hand, he instructed Li Jingsui to increase the investment in the Academy of Sciences, and at the same time quickly selected the loyal forbidden army to supplement the Datang Academy of Sciences, especially to strengthen the vigilance of the Military Research Department, and on the other hand, he rewarded all the personnel of the Academy of Sciences, especially Lin Feng, with a special reward of 10,000 yuan and 200 pieces of silk as compensation for the emperor's psychological guilt.

Lin Feng, Shi Xubai and others hurriedly led the crowd to kneel down and thank them, and the inspection trip was now a successful end.