It has to be said that this is a too difficult task to finalize the mine shooting and put it into mass production in ten days, even if there is a prototype of the mine in the arsenal diagram and Zhu Jie's improvement drawings, it is definitely not an easy task.

Zhu Jie threw the task to the Military Engineering Academy, and he didn't pay attention to it, there were many affairs in the DPRK and China, where could he keep his energy on a small mine.

Song Yingxing and Bi Maokang took more than ten students and two firearms experts to tackle key problems, worked day and night, and worked for ten days.

In 10 days, no less than 50 experiments were carried out, no less than 20 mines of various shapes and properties were designed and tested, and more than 70 people were mobilized.

"Your Majesty, this mine, net weight of eight catties, of which the latest picric acid explosives are installed more than five catties, more than one-third more than the charge of flowering bombs, and the explosive power of picric acid explosives is more than twice as strong as black gunpowder, if ten flowering bombs can sink a capital battleship, then only three to five mines can be able to severely damage or even sink a capital battleship, the power is definitely enough. As for the detonation, we use the most advanced trigger detonator, the initiator is nitrocellulose, very sensitive, and special treatment has been done, no matter which angle the battleship collides with the mine can trigger the explosion of the mine, when deployed, we can use the hemp rope to connect the mines in series and deploy them on the sea surface, so as not to be swept away by the waves, as for the hemp rope above the sea, it is not conspicuous at all, no one will notice this inconspicuous mine, as for the components, we have streamlined it as much as possible, and it is very convenient to produce! ”

Bi Maokang stood beside Zhu Jie and said in a deep voice.

Zhu Jie looked at Song Yingxing on the side, Song Yingxing's face was a little depressed now, sitting on a tiger skin chair, after all, he was close to eighty years old, his energy was not as good as before, he was busy for ten days in a row, and he was indeed exhausted.

"Your Majesty!"

Song Yingxing said with a smile: "Please rest assured, what Master Bi said is not bad at all, this newly finalized mine is far more powerful than the flowering bomb, as long as it is touched by the battleship, it will explode directly, three mines are enough to hit a battleship with a volume of 1,500 materials to hit a heavy damage, if it is not repaired in time, the battleship will definitely have only one way to sink into the sea." We have already developed five, today please come over, is to test on the canal, two mines have been deployed on the canal, the boat has a weight of nearly a thousand materials, after touching, it explodes instantly, let's see the power of the explosion......"

"Okay, let's get started!"

Zhu Jie shouted in a deep voice.

Bi Maokang turned around and shouted to the messenger on the side: "Pass the word, immediately fill the boat with coal, light the fire, and prepare the boat to sail!" ”

Zhu Jie was stunned and said, "Fill coal? ”

Bi Maokang said with a smile: "This time it is a bloody investment, Your Majesty, our Ministry of Science and Technology has paid 20,000 taels of silver, and the latest steam ship specially bought from the Cao Gang, thousands of materials, and only the new ship can test the power of this mine explosion......"

Zhu Jie was speechless for a while, what the hell, as for such a loser? The steamship, and the latest 500-ton boat, 20,000 taels of silver, was used for experiments......

The boat was started and sailed into the distance, and just after sailing out for more than a mile, the bottom of the ship had already touched the mine, and the two mines exploded one after another, with a difference of only ten seconds!

Rumble!

Rumble!

Two violent explosions sounded from the canal, the mine just exploded on the ribs of the boat, the violent explosion made the vicious waves on the canal monstrous, straight to a height of more than ten meters, surging monstrous waves at the same time, pieces of broken wood rushed to the sky, huge mules and horses like wood was even thrown directly hundreds of meters away, debris splashed,!

The power is too great, this is a new ship, a new ship that has just been launched for only two months, it is extremely solid, and it was directly scrapped in the sound of explosions!

In the violent explosion, the entire bow of the ship was blown up by the mines, and the boat had begun to slowly plunge towards the bottom of the river!

It was too ruthless, although the middle and stern of the boat did not receive any damage, but the two mines all exploded at the bow of the ship, which made the bow damage too serious, and the river water poured into the cabin, and it was difficult not to sink!

"Bi Gong, you did a good thing!"

Zhu Jie's face turned dark, and he said angrily: "The power of this mine is enough, but such a large boat sank into the canal, how can this canal pass other boats?" Don't you want to hurry up and prepare for salvage? ”

Forehead......

Bi Maokang's old face turned red, and he patronized his work, but he forgot about this stubble, such a big boat sank to the bottom of the canal, not to mention a large boat, even a small boat is difficult to pass, a big ship with thousands of materials......

"Quick, immediately ask the Governor of Caoyun Yamen to send someone to salvage the ship, especially the steam engine, you must get it, maybe it can still be used!"

Bi Maokang shouted.

"That's it!"

Zhu Jie replied: "Might, I have seen it, in ten days, I can improve the mine to this extent, it is really difficult for you, yes, it can be mass-produced, but it is best for the Military Engineering Academy to send some people for guidance, otherwise, just start production, and there will be problems in the south......"

Bi Maokang said with a smile: "This is certain, the minister has already discussed with Brother Chang Geng, and the dozen or so students who followed us to improve the stereotype, one did not leave all of them to be sent to the three arsenals, with physical objects and drawings, to supervise the work, now all the problems have been solved, although the picric acid explosives are difficult to get, but the arsenal still has a reserve of several thousand catties......"

"Hard work, Bi Gong, Chang Gung Gong, Chang Gung Gong?"

Zhu Jie smiled approvingly, and his eyes fell back to Song Yingxing.

"Chang Gung Gong, Chang Gung Gong?"

Zhu Jie screamed softly, and Song Yingxing on the tiger skin chair smiled, but there was no reaction.

Zhu Jie was shocked, the explosion just now was so violent, it was impossible to fall asleep, even if he was tired, he had to be woken up......

"Chang Gung Gong!"

Zhu Jie shouted.

Song Yingxing still didn't react, still smiling, but his eyes were slightly closed in shock......

Zhu Jie put his hand on Song Yingxing's shoulder and shook it gently, but there was still no response, Zhu Jie put his hand under Song Yingxing's nose, but he was already snorting......

Song Yingxing, a science and technology giant of the Ming Dynasty, passed away suddenly in the summer of the ninth year of the founding of the Ming Dynasty!

(End of chapter)