helium
What gas (except hydrogen) can make balloons fly? All rare gases with molecular weight less than 29, such as nitrogen, helium, neon and argon, can be used if they are too close.
Besides hydrogen, what other gas can make balloons fly? Helium can be used. To be precise, all gases whose density is lower than air can be composed of air, mainly oxygen and nitrogen. Other gases with lower density than these two gases can make balloons fly.
What kind of gas can make balloons fly? The density is less than that of air. Such as hydrogen, helium, etc. . . .
What makes the balloon fly is the impermanence of life. In life, we often encounter unpleasant things. Some people will think that they have no talent, play the lute to a cow, and blindly sigh the injustice of fate. In fact, there is nothing to make up for. Only by constantly enriching ourselves can we get out of the misunderstanding of life and glow with new vitality. Ten years ago, after I graduated from junior college, I entered a rural junior high school, which was very remote. At that time, I was youthful and always felt a little "wasted". Although I am doing my work methodically, I am always complaining. The headmaster is very dissatisfied with this and always tries to make things difficult for me. Therefore, it is always difficult for me to get the reward I deserve for a lot of work. Even so, I am not discouraged, but more strict. Keep learning in teaching, never give up, and show outstanding performance in all aspects. A few years later, I transferred from that school. In fact, I was able to maintain a strong fighting spirit in the face of difficulties, thanks to a story I saw when I was a teenager: a man made a living by selling hydrogen balloons, and when his business was bad, he released several balloons. Colorful balloons flying in the air will naturally attract the attention of many tourists, so this person's business will become better. One day, when the man was about to start flying some balloons in his hand, he suddenly found someone pulling his clothes behind him. He looked back and found it was a little black boy. The little black boy asked timidly, "Uncle, if the balloons in your hand are black, will they fly?" The balloon seller patted the little boy on the head and said, "Of course! A balloon can fly not because of its color, but because of the gas in it. " The little boy nodded and loosened his clothes. "?" It's not the appearance, it's the inner qi. But some people in our life only pay attention to their appearance, power and other external things, ignoring the internal cultivation. As we all know, appearance and power are fleeting. Even if some people climb to a certain height by virtue of their appearance and power, can they "fly" once these things are gone? This reminds me of another story: a young man who thinks he is a "great talent" committed suicide in despair. After many unsuccessful job searches, he happened to meet an old man, thinking that the world didn't know him as a "Bole". After listening to the young man's story, the old man asked the young man to pick up a grain of sand and throw it on the ground. He also asked the young people to look for the particles he had just thrown. The young man searched for a long time and found nothing. Then the old man took out a piece of gold and threw it on the ground for the young man to find. "If it is gold, it will shine." In life, we should sigh less and take more concrete actions. Maybe fate is unfair to you, maybe we don't have a good "birth", but as long as we dare to challenge and constantly increase our memory power, one day the dark clouds will disperse and the dragon will eventually take off.
What can be put in a balloon to make it fly? It can be filled with hydrogen. But hydrogen is not safe.
So now it is usually filled with helium.
What is a flying balloon? The only gases that can fly are hydrogen and helium. Hydrogen is unsafe and explosive, so it is very important to be safe at the wedding. The other is helium. Helium is not dangerous. If you want the helium balloon to fly for a long time, you need to use balloon protective liquid. First put the protective liquid into the balloon, knead it evenly, and then inflate it to fly for a long time. Or you can glue the balloon to the ceiling.
The structure of hot air balloon is very special. Even if it suddenly turns off, the hot air balloon will not descend quickly, but will land on the ground very slowly. In this case, the descent speed of the hot air balloon will not exceed 5.5m/s, which is slower than the normal descent speed of the parachute.
The volume of a standard hot air balloon is divided into several levels, which are seven levels, and the volume of the ball is 2000-. 2400 cubic meters; The volume of the eight-level ball is 2400-3000 cubic meters; The volume of the nine-level ball is 3000-4000 cubic meters; The volume of the ten-stage ball is 4000-6000 cubic meters; The alien ball, the only panda hot air balloon in China at present, has a volume of 2,300 cubic meters.
What tools are used to make balloons fly? Hydrogen bottle+blowpipe+thin wire+fire extinguisher. It's best to use two sandbags as bunkers just in case.
What kind of pump can make balloons fly? Is it expensive? Can a bicycle pump make balloons fly? It's not the pump that makes the balloon fly.
That's the gas itself.
Flying balloons are not filled with ordinary air.
It is filled with gases lighter than air.
That's why I fly.
Such as hydrogen.
What kind of gas can a balloon be filled with to float hydrogen?