Rebuild Dinosaur Island

Chapter 106 Try Lao Tzu's Second Kick (Favorites)

After eating the jellyfish meat, Li Yan soon went to sleep in the wooden house.

After all, I was tired all day.

Especially after swimming back and forth in the sea so many times in the afternoon, the physical exertion is of course very serious.

slept through the night.

Day [-].

Li Yan got up early, stretched his waist, and walked out of the wooden house.

As soon as he met him, Baozi immediately rushed up, hugged his leg, and gnawed on him.

Now, almost half a month has passed, and the bun has grown to a size of more than 70 centimeters, and it seems that it is about to catch up with Xiaopi.

And its back began to grow all kinds of rough hard skin, as well as the hard bones on its head, which were also small in size. In terms of defense, it had already begun to show signs of improvement.

Maybe it was because the Shinjuku camp was too small, and Baozi couldn't stand the loneliness.

Unable to keep pestering the little guy, Li Yan arranged for him to join the search team, together with the pangolin and Buu, to search for rare plants in the jungle near the campsite.

Played for a while.

Li Yan opened the bun and came to the catalyst room.

As soon as you open the door.

Hey!
A bad smell immediately came to the nostrils.

Fortunately, he hadn't eaten yet, so he could only retch while leaning against the door, otherwise, he would have to spit out all the food he just ate.

"No, it's best to use the feces of herbivorous animals next time. The feces of these carnivorous creatures are just like humans. It's so smelly!"

It's like the difference between cow dung and dog poop.

Plant feces, after all, still taste less.

Li Yan shook his head, went out and walked around, took a piece of soaked thatch cloth, covered his mouth and nose, and then returned to the catalyst room again.

I see.

The five or six catalytic boxes inside were all covered with a layer of faint hoarfrost crystals, especially the first box he made the day before yesterday, which was already covered with a thick layer.

"I guess it's almost..."

Li Yan nodded, took out the box of catalyzed soil salt, put it on the open space, and then used a woodworking table to make a thin wooden board, and gently scraped out the white crystals from the box.

Maybe it’s because of the strong fermentation of dinosaur feces; maybe it’s because the plants in the origin world contain more organic components; maybe it’s because the origin energy provides help.

In short.

He got a lot of soil nitrate, according to the division amount required by the alchemy unit, he got a full four!
The material is back aligned.

Li Yan immediately couldn't hold back the excitement in his heart.

That's right, he's going to start making black powder!

Immediately, he hurriedly took out the charcoal and sulfur that had been refined in the refining furnace, piled them with the saltpetre, and placed them on a huge fern leaf.

Then, he put his left hand against these alchemy materials and thought.

A blue light flashes.

Materials began to be decomposed and disappeared.

There was a delay of about three to five seconds, and when the blue light dissipated, two piles of black particle powder appeared on the leaves, which were black powder!
Li Yan squeezed it with his fingers. Compared with the modern silver gunpowder, the black gunpowder in front of him is obviously rougher and has a large graininess, but the fusion of charcoal, sulfur, and nitrate is very even.

This is one of the reasons why he uses the system to synthesize black powder instead of making it himself.

As we all know, when I was studying chemistry in high school, my teacher told me that the formula ratio of black gunpowder is "nitrate, disulfide and charcoal".

But in fact, the ratio of this formula can be changed continuously.

Different proportions determine the different deflagration properties of black powder, which needs to be carefully calculated.

Otherwise, when you ignite it, you yourself cannot predict its deflagration time and power, and it is easy to cause accidental injury.

The black powder blueprints of the system all have fixed synthesis formulas and uniformly planned ratios, so there will be no mistakes, and naturally it will be easier to master.

Subsequently.

Li Yan separated the two pieces of gunpowder, and one of them was evenly sprinkled on the ground, connecting it into a fuse nearly three meters long.

As for the other part, he put it away, found a piece of bamboo, and used a carpentry bench to cut out a sealed bamboo tube that was three fingers thick and nearly twenty centimeters high. Then he used a one-handed sword to poke a hole in one end and put the black gunpowder into it. Fell in through the hole.

That's right.

He was going to do two experiments, one to test the flammability of black powder, and the other to test the detonation of black powder.

Afterwards, Li Yan found a burning charcoal from the fire, pointed it at the black powder fuse in the open space, and lit it.

next moment.

There was only a "chi" sound.

A few sparks sputtered out immediately, and the black powder started to burn instantly and moved along the fuse.

And with the burning process, a lot of black smoke came out.

Li Yan has been staring at its burning speed, which is obviously much slower than modern smokeless gunpowder, but much faster than the "turtle speed" black gunpowder in ancient film and television dramas in my impression.

The lead wire, which is nearly three meters long, burns out in about a second or so.

He is quite satisfied with this burning speed.

Next came the explosion power test that he was most looking forward to.

"Try Lao Tzu's second kick!"

Li Yan grinned and laughed, found a few weeds, dipped a lot of black gunpowder powder, twisted them together, and stuffed them into the gunpowder along the holes in the bamboo tube.

Compared to pure black gunpowder.

The grass fuse mixed with gunpowder will burn much slower.

There was a delay of about two or three seconds.

I saw a "pop" sound, accompanied by a dazzling white light, just like firecrackers on the earth.

Immediately afterwards, a large amount of thick smoke came out.

Standing ten meters away from the explosion point, Li Yan watched as many tree branches were blown away, and even nearly collapsed by a tree branch.

"This explosive power is not bad!"

Before the thick smoke completely dissipated, he couldn't wait to run to the scene of the explosion, and he could still feel the residual heat of the explosion.

The maximum heat release per kilogram of black gunpowder can reach at least more than 34000 joules, and the instantaneous temperature can exceed 1200 degrees Celsius. This is very scary!

Sweep away the smoke.

Li Yan saw that the bushes under his feet had become unrecognizable now. All the branches in the center were blown out, and even the branches next to them were blown off one by one and burned to black.

There is a relatively obvious explosion impact mark on the ground.

He estimated that this power is enough to blow off a human hand.

In the bamboo tube, only less than half a catty of black powder was put.

According to this data, a black gunpowder the size of a wooden box can completely blow up a small and medium-sized dinosaur about four meters in length, seriously injuring it, or even killing it on the spot!

　The second update, please recommend for favorites, please!

　　


(End of this chapter)