Chapter 1827

"Tie these green bricks with hemp rope. Remember to connect them together and don't scatter them."

Zhang Feng turned to Hao Chujun and said seriously.

"Yes, teacher."

Hao Chujun nodded and began to move in his hand.

Zhang Feng turned his head, glanced at the crowd and said, "now we start to let go in turn, but we can't all let go. Now I'm going to tie a rope on the silk and connect the green bricks later, otherwise everyone can't let go, okay?"

"Yes, teacher."

Ma Zhou nodded and said solemnly.

Others are full of agreement. This is their sacred thing in heaven. They dare not neglect it, otherwise there is no place to cry.

Zhang Feng nodded with satisfaction and gently let go of his right hand. The silk shook a little and didn't float up. Seeing this, he took a rope from the table and began to wind it around the silk opening.

"Iron bull, gently send his right hand. After the rope goes around, he grabs it again."

Zhang Feng wraps the rope around Chumo's right hand, telling Chumo with a serious face that this guy is playful and must be serious.

"OK, just come."

Chumo nodded. He knew the importance of the matter and dared not neglect it. He gently let go of his right hand. The silk shook violently, and everyone pulled it off with concerted efforts.

Seeing this, Zhang Feng did not hesitate. He slowly stretched out the rope. After everything was completed, he said again: "now hold the silk with his right hand and lift it with his left hand."

Chumo nodded and did it again according to the action just now. Except for the violent shaking of the silk, there was no accident. Then the rope successfully bypassed Chang sun Chong, Du Gou, Ma Zhou and others. Zhang Feng grabbed the rope in his hand again and tied a knot. Everything was done.

"Don't let go until you tie green bricks."

Zhang Feng glanced at the crowd and then fixed his eyes on Hao Chujun: "Hao Chujun, tie the rope on the silk and the rope on the green brick. Remember, don't kill the knot."

With that, he threw the hemp rope in his hand to Hao Chujun and motioned for the other party to tie a knot.

Hao Chujun reached out and took the hemp rope. He moved very quickly and soon tied a knot.

"Teacher, it's ready."

He looked up at Zhang Feng with respect on his face.

Zhang Feng nodded and glanced at the rope. After confirming that there was no problem, he took the lead in loosening his hand. Seeing that the silk showed no sign of floating, he then looked at the people: "you can let go now. Remember, loosen one by one."

When the voice fell, the people began to let go. First, Chumo, the silk shook a little, and then Chang sun Chong let go one after another. The silk began to float up, and the hemp rope began to tighten. Du Gou and Ma Zhou both let go. The silk suddenly floated up, and the hemp rope became more and more tight. Until the whole hemp rope was straight, the silk stopped floating and floated in the air.

"Feng Zi, is this thing finally finished?"

Chumo claps his hands and looks at the silk on his head.

"Well, it's basically done. I'll wait for the experiment."

Zhang Feng narrowed his eyes slightly and looked at the silk. He was happy. With this thing, a hot-air balloon can really be called a hot-air balloon.

"Can we experiment now?"

The eldest sun rushes to Zhang Feng with a happy face. He can't wait. Chumo has already gone to heaven once. It's a little unfair to watch him and Du Gou. If you think about the benefits Fengzi owes himself, you can't just forget it.

"The experiment must be done. What's your hurry?"

Zhang Fengbai glanced at Chang sun Chong. He didn't have a good way: "I'm worried that I'll pit you."

"That's not true. I'm in a hurry."

The eldest son scratched his head and smiled.

Zhang Feng ignored the guy, but stared at the silk and thought.

Now there is no problem with hydrogen, but how to control the direction and height?

Future hot-air balloons control the direction and height through the gas in the sphere, but now there is not so much hydrogen and can not afford to be consumed.

However, the height is often linked to the weight. The weight should be able to control the height. Once the height is controlled, the direction will be much easier.

He thought it over and over again in his heart and finally determined it. Then he looked at Ma Zhou: "Ma Zhou, you should immediately find ten pockets, each containing ten kilograms of sand and bring it to the playground."

Ma Zhou and Hao Chujun looked at each other with some doubts. It was not what the mentor wanted to do, but they both answered and walked out of the door.

"Iron ox, big cake, insect, do you want to go to heaven?"

Zhang Feng turns his head and glances at Chumo and others, smiling rather than smiling.

"Of course, Fengzi, will you let us go to heaven?"

Chumo comes forward and shakes Zhang Feng's shoulder violently.

"Stop, shake again and you'll die."

Zhang Feng waved to try to stop this guy's things.

"Hey, Feng Zi, I'm sorry."

Chumo smiles, takes back his hands and rubs them. He looks forward to Zhang Feng.

Chang sun Chong and Du Gou also gathered around and looked forward to Zhang Feng. They were more eager to heaven than anyone else.