The weather is so hot that I happened to come across a video about transforming an electric fan into an air conditioner. You are so talented! In the video, a fan with eight plastic bottles on top was blowing loudly. The man in science and engineering, enjoying the cool breeze, kept saying: No, it's too cold. Can you turn it down one degree? Is
really so awesome? !
Netizens are also knowledgeable and educated people, and they expressed their opinions one after another:
Some said: Ah, for example, if you put your hand in front of your mouth, if you open your mouth wide and breathe, then what your hand will feel is hot air. If you blow with a smaller mouth, gas. Then it feels very cold.
Some people said: I have seen reports before, saying that the walls of houses in Africa are built with bottles like this, with the mouth facing inward. I never understood the principle.
Some also said: This is the "Coke bottle air conditioner" imitating the slums of Pakistan . It was developed by the United Nations for poverty alleviation.
Others said: How did they know that poor people in Africa have long been using this method to cool down. It’s great to be able to use the knowledge you have learned to come up with this method to cool everyone down. [Like China]
There are also netizens who object: First, it was not developed by them. This thing has been used in Africa and India for a long time. Second, there is no heat and cold exchange. Even in the same space, the cold air obtained after compressing the gas will be mixed with the surrounding hot air, which makes it feel lonely!
@A Cui, college students are very good at applying the knowledge they have learned in school, no matter how cold it is, great!
Do you think this method is useful? Want to give it a try?
#头头#I want to be on micro-toutiao##
