Holding the grass, rising up?

Chumo glances at the ground in panic and finds that he is hundreds of meters away from the ground. If he falls, he will become a meat pie?

Thinking of this, he glared at Zhang Feng again, but found that Zhang Feng on the ground was as big as an ant and was still running on the ground. It seemed that the bastard was also flustered.

He felt proud for a while and began to enjoy the scenery in the air. He didn't know it. He was shocked. He hadn't been to the sky before. Now, when he looked, the sky was full of marshmallows. Even the ground was green, as if he had been sprinkled with a large basin of textile factory paint. It was very beautiful.

Not only that, even the mountains in the distance seem to be closer to themselves. There is a piece of silver on it. You can vaguely see the proud plum in the snow, the roe deer foraging, the big insects hunting, etc., as if all these are displayed for yourself.

He stared at his round eyes, looking left and right. He was completely immersed in the beauty in front of him, as if he had forgotten the shame just now.

At the same time, on the ground, Zhang Feng is leading the people to look for the trace of the hot-air balloon. To be exact, it is Chumo's trace. Just now there was a strong wind. This guy swayed and rose a lot with the wind. Now people can't see the trace clearly when standing on the ground. In addition, there was some snow last night, which directly blocked everyone's sight.

"Big cake, insect, Ma Zhou, Hao Chujun, you four look in four directions, East, West, north, South."

Zhang Feng glanced around and told the people that there was only a faint trace of the hot-air balloon, which needed to be looked for separately, so it was easier.

They nodded and headed in four directions at the same time. They knew the importance of the matter and did not hesitate.

"Creak... Creak..."

As the snow had not melted yesterday, there was some noise on the ground, but it did not stop the people from looking for confidence.

Zhang Feng took out a cigarette from his waist, took out a torch to light it, slowly sucked it up and walked to the shadow of the hot-air balloon.

In fact, he is not very worried about the iron bull. The guy has rough skin and thick meat. There is nothing wrong with falling down. Moreover, the hot-air balloon is not vegetarian. The silk on it is covered with several layers. Although it is still breathable, it is much better than before, so the safety of the iron bull is not a problem.

But he was thinking about a question just now.

Iron Bull has some truth. People are not pigs. It's impossible to tie people up every time. However, if they are not tied up, God will inevitably panic for the first time. Under panic, there will be danger in case of disorderly movement. It seems to think of a way not to tie people.

Yes, Kong Mingdeng.

Under the Kongming lamp is something similar to a bamboo basket. Put the fire in the bamboo basket. If you put a bamboo basket under the brazier and expand and improve things such as silk and iron wire, maybe you can carry two people to heaven, or even more.

I'm a fucking genius. I'll give you a cigarette.

He takes a deep puff of cigarette proudly, enjoys it all over his face, and continues to walk towards Chumo's disappearance.

However, once there are more people, how to control the direction? The brazier is not very safe? What if there's a fire? And it's not a thing to always use the wind. What if there's no wind when you want to fly?

This series of problems made him a little confused. It is said that there is no need to worry about these. However, he is such a temperament that he either doesn't do it or wants to do his best. Suddenly, a bold idea came to his mind.

Hydrogen?

Future hot-air balloons are filled with gases lighter than air, such as hydrogen and helium. If these two gases are taken out and poured into hot-air balloons, won't they be able to solve the problem just now like future hot-air balloons?

Thinking of this, he kept recalling the methods of making hydrogen taught by school teachers in later generations.

At that time, he personally did this experiment. He added half of the water into a glass. When adding water, a large amount of gas had entered the glass, including hydrogen, and then added a little salt into the glass, because salt can help conduct electricity, and then covered the glass with a cardboard, Then insert two 30 cm to 60 cm long wires at an interval of about 5 cm between the cardboard, and let the 5-7 cm long part of the wire submerge into the water.

Then connect the other end of the wire to the positive and negative poles of the power supply respectively. You will soon see that bubbles will be generated near the wires in the water, hydrogen will be generated at the negative electrode, and oxygen will be generated at the positive electrode. Find a container, invert and fix the container, sink into the glass, and slowly pull the glass up, but do not leave the water surface. The final effect is that the glass protrudes from the water and is filled with water, so that hydrogen can be obtained.

Most of the things in this experiment can be replaced by things. You can use bowls for glasses, salt itself, not to mention paper. Wires can be made of copper wire in the forging workshop, but where does the electricity come from?