What language do you use to communicate with aliens?

Modern astronomy has confirmed that the appearance of earthlings is the result of the evolution of the universe. Because the laws of nature are universal in the universe, the factors that lead to the birth of people on earth will also appear somewhere in the vast universe. Therefore, many scientists firmly believe that aliens exist in the universe. For half a century, people on earth have not only adopted passive methods to monitor the signals sent by aliens (such as the "extraterrestrial civilization search plan"), but also actively contacted them through various means. How to contact them? The mainstream of the scientific community thinks it is necessary to communicate with aliens in the universe. To carry out this activity. The first problem we encounter is undoubtedly the language problem. Sagan, an American astronomer and popular science writer, believes that no matter how different the scientific and technological civilizations in the universe are, there is a language with the same meaning-mathematical language. Zhou Haizhong, a mathematician and linguist in China, pointed out in the article Cosmic Linguistics published in 1999 that mathematical language has the characteristics of accuracy, conciseness, abstraction, logicality, universality and formalization, and is an ideal tool for cosmic communication. Canadian astronomers Datie and Du Masi designed a mathematical language and sent it into space in 1999 and 2003 respectively. Last August, Australia's National Science Week launched an activity called "Greetings from the Earth" to send short messages to aliens. By the end of the activity, 25,878 people from nearly 200 countries and regions in Australia, the United States and China had written short messages. These short messages are converted into mathematical language and sent to Gliese 58 1d, a terrestrial planet about 20.3 light years away from the Earth. Some scientists also believe that image language can be used as the same language for cosmic communication. Image language uses digital dualism (i.e. 0 and 1) as coding, and divides an image into many small squares (i.e. many pixels), with the brighter squares represented by "0" and the darker squares represented by "1", thus turning an image into a digital signal and transmitting it by radio waves. When aliens receive this signal, they can change the signal "0" into a white square and the signal "1" into a black square, so that the content can be transformed into an image, and the meaning can be known according to the image. 1974165438+1October16th, American astronomer drake and others used the arecibo radio telescope of Puerto Rico, which is the largest in the world (with a diameter of 305 meters), to fly to M/kloc-,a globular cluster in Perseus, which is about 100 light years away from the earth. This "telecommunication" consists of 1679 binary codes 0 and 1, including the number of atoms in chemical molecules, the figure of people on the earth and the composition of the solar system. Some scientists believe that music language can also be used as the same language for communication in the universe. For example, Russian psychologist and astronomer Lefevere believes that music language is the unified language of the whole universe; When two civilizations are in the non-trafficking stage technically and intellectually, and there is no basis for exchanging knowledge, they can communicate with the same emotions, and one way to communicate emotions is to transmit music information. In March, 20001,the first concert dedicated to an alien audience was held at the Yevpatoria Observatory in Ukraine. What was played at the concert were all some classic music works. Music works are sent by the radio telescope of this station to a planet around Ursa Ursa 47. The planet is 42.4 light years away from the earth and has a "greenhouse" environment similar to the earth. Scientists believe that it is likely to have aliens. In order to communicate with aliens, people on earth do not use radio waves to send language information to aliens, but also use the method of "letters in a bottle" to send physical information to aliens. For example, from March to September, 1972, the United States launched four spaceships into space, namely Pioneer 10, Pioneer 1, Voyager1and Voyager 2, each with physical information. Two of the "Pioneer" spacecraft are equipped with a metal plate, which can be described as a "business card" given by the earth people to aliens. The left side of the metal plate is engraved with the pattern of the solar system; On the right is the image of a man and a woman, and the man is waving. The codes of the sun and the nine planets in the solar system are engraved below. Each of the two Voyager spaceships is equipped with a "postal parcel" for aliens: a round aluminum box with a gold-plated audio-visual CD containing 1 15 pictures, which introduces some of the most important information of earth civilization (such as the majestic appearance of the Great Wall in Wan Li, China, the molecular formula of DNA, etc.). ), and recorded the brief greetings from the earth people to aliens in 55 languages. Scientists believe that once aliens intercept these physical information, they can decipher its meaning into their own language information with their own wisdom, so as to achieve the purpose of understanding the people on earth. It is worth mentioning that some people think that the contact between people on earth and aliens may expose the earth to the danger of being attacked by aliens; But most scientists think this kind of worry is completely unnecessary. As long as they are advanced intelligent life, their rationality determines that they must treat all intelligent life in the universe in a measured way. Therefore, aliens and earthlings can live in harmony, cooperate in friendship and develop together in the future.