A hot air balloon does not have rudders, it must move in the direction of the wind. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

The wind direction is different at different heights, at different times, and in different places, so if you want to adjust the direction, you need to find different wind layers.

The rise and fall of the hot air balloon is related to the air temperature inside the balloon, the air temperature in the ball is high, the gravity of the balloon decreases, and when it is less than the buoyancy, the balloon rises, the air temperature in the ball drops, and the buoyancy generated by the ball is less than the weight and load of the ball itself, and the balloon begins to fall.

These most basic truths are naturally known to Wuhan University, as a high-achieving science student who has crossed over.

However, the words on paper are finally useless, and the actual operation is not as simple as the words.

Therefore, Zhang Liang's mouth flew directly into Yanjing and entered the palace, although Wuda was also excited, but this flight all the way was probably going through a lot of hardships.

However, once this is done, the benefits are clear.

Perhaps, Zhang Liang just wants to show off, but a person stands from a different angle, and the level of consideration of the problem is completely different.

Wuda created a hot air balloon, not to slaughter the world, but to give the enemy the most powerful deterrent on the battlefield, this kind of flying weapon, in the current year, is enough to bring an unstoppable and powerful impact to the mind of any enemy.

And since it is a deterrent, it does not have to be strong on the battlefield.

Perhaps, at this time, under the gaze of countless pairs of eyes, flying directly into Yanjing, the deterrent effect will be stronger.

After all, the imagination of the people is rich and colorful, and I believe that with their word of mouth, the news that King Wuzhi of Northern Yan has a sharp weapon that can fly will quickly spread throughout the world, and it will make the major forces in the world more and more afraid of Yan Yun.

This is what Wuhan University hopes to see the most.

After muttering for a long time, Wu Da grabbed the cotton clothes prepared in advance in the hanging basket, put them on his body, nodded, and said, "Okay, let's fly directly into the palace!" ”

Zhang Liang's face was full of excitement, but he looked at Wuda strangely, and said suspiciously:

"Boss, are you alright? Wearing cotton clothes on this hot day? ”

Wu Da rolled his eyes, and he didn't bother to explain so much.

This is the common sense of flying a hot air balloon, because the cotton clothing made of pure cotton can protect the safety of the pilot to the greatest extent, one is that after rising into the high clouds, the temperature will be very cold, and the other is that in case of fire, the flames will not stick to the body.

The hot air balloon rose rapidly, and Wu Gang and others on the ground were no longer visible, and it seemed that the invention of the telescope had to be put on the agenda.

The telescope can be used not only in hot air balloons, but also in the battle between the two armies.

Just as Wuda was pondering the telescope, the hot air balloon suddenly shook violently.

Wu Da's face changed greatly, and Zhang Liang's face was even more pale.

On land, Zhang Liang has already grown into a fierce general, charging into battle, no problem, but in the air, he is really powerless, he doesn't know what to do, and he is at a loss.

Wu Da knew very well in his heart that this was encountering the legendary chaotic airflow.

The mountain wind is howling on the top of the mountain, and in high school, it is natural.

In the scorching summer, the rainy season, the process of rain and dark clouds naturally formed a turbulent airflow to a certain extent.

The hot air balloon was too rudimentary, and Wu Da could only hold on to the hanging basket, trying to stabilize his body, and wait for the hot air balloon to quickly climb through the turbulence.

Zhang Liang's throat was a little dry, he swallowed his saliva, a little frightened, and asked, "Boss, how high is our height now, if we fall from here......"

His meaning is simple, is there a chance of survival if you fall from here?

Wu Da glanced at him amusedly, "If you don't let you come up, you have to follow you, now you know that it's amazing, right?" Don't think too much about it, just wait for the hot air balloon to pass through the clouds. Of course, if we really fall, let alone survive, we will inevitably die without a whole body, fall into a mess of flesh, and regret coming up with me? ”

Hearing Wu Da say this, Zhang Liang quickly calmed down when he heard this, and grinned, "Death is death, boss, you are not afraid of death, what am I afraid of?" ”

The people in the Wufu have always been such a virtue, as the saying goes, learn what to do with whom, Wuda is the king of Beiyan, but he is first of all the head of the Wufu family, Wuda does things, and has always been able to live and never seek death, but if he has fallen into death, then he will go to the special mother's, break the cauldron and sink the boat, put it to death and then live, dry, he, Ya, what is the love.

Since Wuda is such a virtuous person, the people in the Wufu are naturally like this.

The corners of Wu Da's mouth curled slightly, "Don't worry, my luck has always been very good, no matter how big it is, I can't die!" ”

That's right, Wuda crossed over, and was able to change Ximenqing, who had been spitted on in the history books for thousands of years, into his best brother, and he could get the first beautiful woman in history, Jin Lian, as his wife and unswervingly, and was framed by Song Huizong, and he could also have a group of brothers to support Wuda to become the king, all of this, in addition to Wuda's own efforts, to a certain extent, is naturally due to luck.

It didn't take long for the hot air balloon to pass through the chaotic airflow layer and continue to climb, directly through the clouds.

What appeared in front of Wuda and Zhang Liang was an extremely spectacular and magnificent picture.

Under the illumination of the sun, the clouds of various forms are layered on top of each other, decorating the blue sky.

The rolling sea of clouds is like an iceberg floating on the sea; Another example is the various palaces and pavilions carved from white marble, which are connected high and low into a long street new city that cannot be seen.

The golden sunlight outlines these silver mountains and towers in a distinct outline, and it is very appropriate to depict them with the words "wrapped in silver, extraordinarily enchanting".

The rolling clouds pass over the mountain, straight down the deep valley, like a waterfall of flowing water, magnificent, magnificent.

Faced with such a scene, Wuda was pondering and plagiarizing a poem of later generations in his abdomen, but Zhang Liang's words shattered all the poetry of Wuda.

"! Those dogs, the Taoist priests of the day, are lying to Lao Tzu! Where are the gods living in the sky? It's empty, there's nothing but clouds! When Lao Tzu returns to the ground, he will have to demolish all the Taoist temples on the Yanyun Realm! ”

The corners of Wu Da's mouth twitched, and he was silently speechless.

It's still the same sentence, I can't be friends happily, there is a generation gap, and it is a generation gap that has crossed thousands of years!

Are there immortals above the sea of clouds? This kind of ass is left in the future generations, and I am afraid that it can only deceive children under the age of 6.

……

The hot air balloon floated slowly, and Wu Da and Zhang Liang gradually lowered their altitude, found the direction of Yanjing, and rushed there.