After Yuan Jing finished the snail oil matter, she hung the glow-in-the-dark ball on her hot air balloon. At night, it's more comfortable to do what you want to do under the warm lights.

A few cubs have also hung glow-in-the-dark balls on their hot air balloons.

The two small hot air balloons that control them are very close to each other, they are both flying beasts, and it is very simple to control the direction of their hot air balloons, and brute force control is enough. The black and white brushes were very close to each other, and they didn't know what they were talking about, anyway, Yuan Jing heard the sound of the two little ones giggling from time to time.

When Huang Cancan didn't come, the flying pythons were very close to the two little ones that were black and white, and the three little ones were all together, so it was not lively.

After Huang Cancan joined the team of the autumn tour, the flying python seemed to join Huang Cancan's team, and it didn't seem to be, anyway, the flying python was separated from the team of two small ones, black and white.

Yuan Jing only regarded Huang Cancan as another little fan brother of the Flying Python. Or maybe the Flying Python is studying something again.

Anyway, these little cubs are all in the big army, and they don't have to break away from the direction of the big army. Just let them handle the matter between the cubs themselves.

Yuan Jing also started her own research. Yuan Jing hadn't researched the hydrogen balloon all day, and she was also a little discouraged. But research is not an easy thing to do.

In the previous life, Yuan Jing's failure rate in research was even higher. Because in the previous life, she didn't have the assistance of an anti-heaven artifact like the Bright God Ding.

Now with the assistance of the Bright Divine Ding, the failure rate of Yuan Jing's experiment is not low.

Yuan Jing felt that she might have been too smooth sailing recently, so she was a little impetuous. After sorting out her feelings, Yuan Jing devoted herself to her own research again.

In fact, it's good to have something to study, there are so few entertainment projects in this beast world. If you eat and sleep every day, how boring life will be.

Therefore, Yuan Jing's research motivation is a little more sufficient.

But let's study this thing, you don't have to be motivated to succeed. Yuan Jing studied for an hour or two, but she still didn't have a clue.

So in order to relax herself, Yuan Jing went to Shending Space to count her small vault. A small vault is a great way to decompress and relax. No matter how bad the mood is, counting the small treasury with a huge amount of materials, the mood is instantly beautiful again.

Unconsciously, Yuan Jing walked to these fish ponds he had built.

The resources of various fish and shrimp in Yuan Jing's space are the most abundant, and the reproduction rate of fish and shrimp is also very fast. Yuan Jing felt that if she put her hand into the space, she could catch the fish and shrimp in the fish pond with her bare hands.

Looking at the various fatty fish and shrimp in the fish pond, Yuan Jing couldn't help but swallow her saliva. Yuan Jing only thought it was very interesting to watch other people fish at night in her previous life, but now that Yuan Jing finds it, it is also very interesting to quietly watch all kinds of fish and shrimp swimming happily in the fish pond.

Yuan Jing sat directly on the ground, watching these fish and shrimp swim happily by the fish pond. Yuan Jing's mood also became very happy.

For some reason, the fish and shrimp in the fish pond like to spit bubbles happily. Yuan Jing is also idle, she is quietly watching these fish and shrimp spit bubbles by the fish pond.

In the previous life, the fish spit bubbles are likely to be due to the lack of oxygen in the water, and the fish will float to the surface of the water to breathe oxygen from the air, and then spit out the air that has been inhaled into the mouth, forming a bubble.

The fish in Yuan Jing's fish pond do not float to the surface of the water to spit bubbles, they spit bubbles in the water by themselves, and then the bubbles spit out by these fish and shrimp will rise directly from the water to the surface of the water, and then burst.

This scene is a bit like the water is filled with an aeration pump, and a lot of bubbles grow in the fish tank. There's something special about the picture. This may be a unique function of the beastly fish, in order to speed up the flow of air in the water and increase the amount of dissolved oxygen in the water.

This is also the reason why the density of fish in Yuan Jing's fish pond is so large, and these fish can still live well.

The fish and shrimp in Yuan Jing's fish pond are not too big, so the bubbles spit out by these fish and shrimp are also relatively small. Yuan Jing thought that if she went to get some big fish, she could see Baotu Spring in her own fish pond. If you find a bigger fish and come back, you can see the fountain!

This is a good idea, Yuan Jing thought of catching all kinds of fish and shrimp in the big river or the sea that could make Baotu Spring and fountains.

Watching fish spit bubbles is the same as watching ants move, it seems boring, but it's actually fun.

Yuan Jingguang has been watching these fish and shrimp spit bubbles for an hour. However, Yuan Jing is not without gains. Not only did she relax, she also discovered an interesting phenomenon.

These fish are able to spit bubbles out of the water, but the bubbles spit out by each fish and shrimp rise at a different rate.

In other words, the bubbles spit out by some fish and shrimp rise very slowly, and the bubbles spit out by some fish and shrimp rise quickly.

This phenomenon is actually quite normal, because the rate at which the same gas rises in water is related to the volume of the bubbles. The larger the volume of the bubble, the faster it will definitely rise.

Yuan Jing found that there was a fish that looked like a puffer fish in the fish pond, so she called it a pufferfish. The bubbles spit out by the puffer fish in the pond are about 15 centimeters in diameter, and many other fish and shrimp spit out bubbles that are 15 centimeters in diameter.

But the bubbles spit out by pufferfish-like fish rise the fastest in the water.

In this case, it is likely that the gas density in the bubbles exhaled by the pufferfish-like is very small.

Of course, it is also possible that pufferfish-like pufferfish use more force to spit out bubbles. With a strong push, the pufferfish-like bubbles must have risen the fastest.

Yuan Jing hopes that the gas contained in the bubbles will be similar to hydrogen, so that her hydrogen will be lost. As long as you find a way to collect the pufferfish-like gas to spit out, it's fine.

Test whether the gas emitted by a pufferfish-like fish is hydrogen or not.

With the idea of experimenting, Yuan Jing immediately walked out of the Shending space. Out of the Shending space, Yuan Jing returned directly to the hot air balloon. It's not the first time that Yuan Jing has been in and out of space in a hot air balloon.

When Yuan Jing first took the hot air balloon, she didn't dare to enter and leave the Shending space. After she saw that the flying python kept entering and leaving the Shending space, Yuan Jing dared to enter and exit the space on the hot air balloon.

Every time she enters and exits the space from the hot air balloon, she feels that the Shending space is very magical.

Yuan Jing used to enter and exit the Shending space at home or at a fixed location, because the home and fixed location would not move, it seemed that there was nothing special about entering the Shending space at home, and then going directly to the house when leaving the Shending space, it was normal.

But the hot air balloon has been moving, according to the reason, if the Shending space is spoken, the person should appear in the original position, the hot air balloon is no longer in the original place, Yuan Jing is not going to fall from a high altitude.

But this is not the case, after Yuan Jing got out of the space, she returned to the hot air balloon. Why this is so, Yuan Jing is not clear.

Yuan Jing didn't know that she could enter and exit the Shending space on a hot air balloon before, so she always cooked on the ground. Yuan Jing also began to cook in the Shending space after confirming that the hot air balloon could also enter and exit the Shending space.

After Yuan Jing praised the magic of the Shending space, Yuan Jing directly took out his Bright Shending and started to make balloons.

The main body of the entire balloon is bag-shaped, about the size of a garbage bag from a previous life. The bag balloon has an air infill on the top. The injector is like a round tube, which is 5 centimeters long and 10 centimeters wide. The balloon made by Yuan Jing is in the same shape as the water filling hot water bottle in the previous life.

Such a balloon is not small. How to spit out bubbles and fill the balloon is also a problem.

It is said that fish, like humans, can also suffer from indigestion. When fish are indigestion or stimulated by differences in water temperature, they will also produce exhaust gases in their own digestive system, and when the exhaust gases run and accumulate to a certain extent, the exhaust gases will emerge from the mouth to adjust the balance of internal and external air pressure.

In other words, if Yuan Jing can complete the pufferfish-like to the point of indigestion, it is still possible to collect enough pufferfish-like dolphins to spit out bubbles.

It's a bit more difficult and inhumane. However, Yuan Jing wanted to give it a try by easing it.

Yuan Jing had made a lot of bait before. Yuan Jing hadn't used those fishing bait. You can try it.

So Yuan Jing took the balloon she made and entered the Shending space.

Yuan Jing caught a pufferfish-like fish and stunned it, and then she shoved a large handful of bait into the pufferfish-like mouth.

Yuan Jing has the strength of the five-patterned beast, and it is still possible to make the unconscious pufferfish-like swallow a large amount of bait.

Yuan Jing put the bait-swallowed pufferfish-like fish into a large stone bucket filled with water. Look at this unconscious, stupid pufferfish-like pufferfish.

Yuan Jing's heart moved, and then caught a pufferfish-like fish by the fish pond, and Yuan Jing poured sweet pale green juice into this pufferfish-like pufferfish.

The one that had swallowed the pale green juice was placed in another large stone bucket filled with water.

Seeing these two chubby and somewhat stupid pufferfish in a coma in a stone bucket, Yuan Jing felt a little guilty. Experiment with these silly creatures and hopefully they'll be bouncing around happily for a while.

Ten minutes later, the pufferfish, which had swallowed the pale green juice, woke up first, shaking its chubby body and starting to play in the bucket.

Yuan Jing could feel that the pufferfish-like fish that had drunk the pale green juice seemed to be in a good mood, and it was swimming much happier than usual in the water. After a while, the pale green sap of the pufferfish-like began to spit bubbles out, and it seemed to be really indigestion, and it spit out a lot of bubbles.

Yuan Jing hurriedly took out this happy pufferfish that spit bubbles. There is an air injection port above the pufferfish-like balloon with its mouth aimed at it, and more than ten seconds have passed, and the bag-shaped balloon is actually filled with gas spit out by the pufferfish.

Yuan Jing pinched the air injection port of the bag-shaped balloon with one hand to prevent the balloon from leaking. Yuan Jing threw the pufferfish-like into a stone bucket with the other hand.

After taking an animal leather belt and tying the air injection port of the bag-shaped balloon, Yuan Jing was pleasantly surprised to find that this bag-shaped balloon really had a tendency to fly upward, which was really similar to a hydrogen balloon. Yuan Jing didn't expect her luck to be so good, although she really found a gas to replace hydrogen.

Small hydrogen balloons have been made, and it seems that it is still feasible to make a large hydrogen balloon.