Douluo Continent: The Supreme Science

"Dang! Dang! Dang!" After purchasing the materials, Yan Xu came to the blacksmith shop and saw a familiar figure forging iron.It was a child with blue hair like him, and his hammering skills were extremely fierce.

Yan Xu's eyes lit up. This hammering technique was a good thing. It would be of great benefit to him to build equipment if he learned it.

In the name of making money from blacksmithing, Yan Xu steals Tang San's cloak hammering technique every day. Unfortunately, Tang San doesn't seem to have a very good grasp of the hammering technique, so he makes many mistakes and may not be able to finish the hammering technique in one go.

Otherwise, it would only take Yanxu one day to complete the job. However, he has been doing other things in the past few days, and the money from his part-time job is just a drop in the bucket for his father.

Practicing the Hammer Technique is the real thing. Even though Yan Xu's evaluation of Tang San was full of flaws, he wasn't much better when he practiced it himself.

The most important thing in science is practice, and truth comes from practice. But what Yan Xu currently lacks most in the hammer method is practice.

Over the past few days, he also shot some necessary equipment, large and small, such as arrows that he would definitely use. He shot a total of eighty.

Of course, this is all because you need to practice the hammering method. It would be much faster if you use the pouring method.

Speaking of which, this is a strange thing about the people on earth. As early as the Bronze Age, people on earth had figured out a way to use beeswax to shape the shape, wrap it around with cement, and then pour molten metal into it.

However, there are still some problems with this method, that is, it is a bit of a waste of beeswax.

Of course, in addition to bows and arrows, Yan Xu also made many knives, all made of those snake scales. The knives are blue and quite beautiful.

However, these equipments are only temporarily overused. Once the Luan Cloak Hammer Technique is completed, his professional production line will be coming. By then, all the ten thousand year soul beasts will be his younger brothers.

......

Two weeks later, Star Dou Forest.

Yan Xu wore an upgraded version of the optical camouflage uniform and came to a bat cave. He came to collect bat guano. Nitric acid can be easily extracted from bat guano.

The first thing to use is a pipette, a typical measuring instrument. It is first rinsed with chromic acid washing solution to remove the oil on the inner wall of the pipe, then the remaining washing liquid is rinsed with water, and then washed with distilled water.There should be no water droplets hanging on the inner wall of the cleaned pipette, otherwise the measured solution will become dilute.

Before pipetting the solution, use filter paper to absorb the water inside and outside the end of the pipette, and then rinse the wall of the pipe 2 to 3 times with the solution to be pipetted to ensure that the concentration of the pipetted solution remains unchanged, that is, use The liquid wets the glass.

Then hold the pipette and insert it not too shallowly or too deeply. If it is too shallow, it will cause a suction. The solution will be sucked into the ear cleaning ball and contaminate the solution. If it is too deep, too much solution will stick to the outside of the tube.

Hold the ear cleaning ball in your left hand. First press out the air in the ball, then connect the tip of the ball to the top of the pipette. Slowly loosen the flat ear cleaning ball to allow the solution to be sucked into the tube. Press the tube with the index finger of your right hand. mouth.

Then just twist or loosen your fingers slightly to control the liquid level. After controlling the liquid level, you have to blow, because the calibrated volume of the pipette includes this part of the residual solution, and vice versa.

Finally move it to where you want it to go, basically hold the pipette upright and run the urea nitrate, which is urea nitrate, along the wall of the container.Slightly soluble in water, soluble in ethanol, insoluble in nitric acid.Used in the manufacture of explosives and organic synthesis intermediates.

Next, a mixed acid prepared from nitric acid and sulfuric acid is used, which is mainly used for the nitrification reaction of organic compounds.Especially the manufacture of nitroaromatic compounds and nitroglycerin.

Not all acids can be mixed. Mixing nitric acid and hydrogen sulfuric acid will instantly result in nothing.

...(omitting a bunch of words here)

After synthesizing nitroglycerin, Yan Xu slowly poured it into a huge bucket, which weighed a ton after sealing.

There should be no problem in dealing with the ten thousand year soul beast now, Yan Xu thought to himself.The main reason for synthesizing such a large amount of nitroglycerine is to worry that the energy layer on the soul beast is too strong.

However, Yan Xu didn't believe that the Ten Thousand Year Soul Beast could stop the one-ton nitroglycerine.

After putting the nitroglycerine into the soul guide, Yan Xu continued deep into the hinterland of the Star Forest. Because he had restrained the aura of soul power and put on optical camouflage uniforms.

There were almost no soul beasts that would confront him head-on along the way, and even if there were, he would try his best to escape with his first soul skill.He has a goal!

Soon, a huge ice dragon came into his sight. The 30-meter-long earth dragon was covered with ice picks with traces of ice.

"If you want me to have a good meal, it's you." Yan Xu quickly focused on the ice dragon, and then followed the ice dragon to its lair.

In the middle of the night, Yan Xu quietly placed the one-ton nitroglycerine next to the ice dragon, and then aimed at the one-ton nitroglycerine with a pre-prepared arrow from a distance of 800 meters.

If an ordinary person is eighty percent unable to shoot a barrel of nitroglycerine with one arrow from 800 meters.But it can be done easily in the fantasy world, and you only need to continuously inject soul power into the arrows.

The originally silent night was broken by a deafening explosion.The surrounding soul beasts were either implicated to death by the aftermath of the explosion or were shocked to death, and soul rings were everywhere for a while.

"The effect is not bad." Yan Xu watched as the three-layer explosion-proof door he had made long ago was ruthlessly destroyed. The heat wave directly rubbed against his snake scales, and white smoke was emitted.

"It's a pity that the soul beast should have been blown to ashes, otherwise it could have been used for research." Yan Xu said with some pity as he looked at the messy center of the explosion.

A dark soul ring rose slowly. Yan Xu was not going to absorb it yet. He first went to see if the soul ring could be broken up into energy and absorbed.

After all, he clearly remembered that the soul ring age could be increased during the divine examination later, so some method must have been used.

After trying several conjectures, Yan Xu finally figured out how to absorb the soul rings. There was exactly half an hour before the soul rings would dissipate. He planned to absorb all the affected soul beast soul rings to the first soul. ring.

After another 15 minutes, the first soul ring was approximately raised to the 4000-year level, and the defense and speed increase provided to Yan Xu were also greatly improved.

"Absorb the ten thousand year soul ring!" Yan Xu's mind moved and he immediately entered a meditative state.

After about four hours, the soul ring was completely absorbed.

"The second soul skill, Ice Prison!" A huge ice cage trapped a thousand-year-level flaming lion.Then it was horrified to find that the flames on its body were constantly extinguished, and a blue figure rushed in front of him.

"Boom!" The flame lion's body was pierced, and a purple soul ring slowly rose.

"Very good, I'm quite satisfied with this second soul ring." Yan Xu looked at his black soul ring and smiled happily for the first time.

"The next step is to upgrade the first soul ring to ten thousand years!"