Tian Yan's composition

In daily study, work or life, everyone will be exposed to composition to some extent. With the help of composition, you can vent your emotions and adjust your mood. Do you know how to write a standardized composition? The following is my collection of Tian Yan's essays for your reference, hoping to help friends in need.

Composed by Tian Yan 1 Tian Yan, also known as Broadcasting. It is the eyes of the earth to explore space, just like the corsage of the motherland.

Deep in the mountains of Guizhou Province, there is a huge and mysterious "eye". It is a spherical radio telescope with a diameter of 500 meters, which is the quick eye of the sky. Sky Eye is the largest single aperture and the most sensitive radio telescope in the world. Speaking of Eye of Heaven, I have to mention the "father of Eye of Heaven" in South Ren Dong. The general manager of FAST is Nan. For China's career, he personally climbed mountains and compared thousands of potholes, and finally built a large radio station with karst potholes as the address. South Ren Dong knows how difficult it is to build the best big radio, which can be called the Long March of modern scientific and technological research. From 1994 to 20xx, for 22 years, Tian Yan exhausted all the efforts of South Ren Dong. On September 15, 20xx, Nan Rendong went to heaven with his honor. Later, the big radio FAST was rated as "the first of the top ten human projects in the 20th century"! The behavior of South Ren Dong makes me curious. Why do humans make great efforts to explore space? What is the significance of human exploration of space?

With a curious heart, it opened my infinite leisure? Idea 1: The fresh water on the earth is limited. What if there is no fresh water on the earth one day? What if other planets collide? Don't say I think too much, "I'm not afraid of 10 thousand, just in case" Now many people know that global warming has become the biggest problem. What if one day, the earth "has a high fever"? You will say, "Find a No.2 Earth!" Yes, Eye of the Sky is to find a new home in the universe where human beings can live. Isn't this the exploration of space? Idea 2: In space, all kinds of planets and stars are very beautiful. Humans are born to like beautiful things very much. You should explore them! Xiangfa 3: Will there be life on other planets? Do the aliens in our hearts really live in space? Will they get along with us or attack the earth?

In the final analysis, the significance of human exploration of space lies in the innate instinct-curiosity! Because of curiosity, we boarded the moon that we often see in articles from ancient times to the present; Because of curiosity, we explore the earth's brother star-Mars; Because of curiosity, we create technology and explore the depths of the universe; Because of curiosity, we paid bit by bit ... why are humans advanced animals? We make tools and think. We have feelings and can express them; The most important thing is that we can think and express our curiosity! We are close to space and live in space; We are also far away from space and are very strange to it. Can't we explore like this?

Eye of the sky, it is the most important tool for us to explore space. Curiosity is the source of human exploration of space!

Seeing "I love inventing" is one of my great hobbies. I like inventions, such as automatic walnut peeler, oil slicer, barbecue machine, automatic slicer ... Numerous inventions have left a deep impression on me and often give me a lot of whimsy: for example, inventing an automatic garbage disposal machine, which can automatically divide garbage into organic and non-organic semi-finished products; A glass is invented, which can diffuse and decompose light automatically, and is installed on the front window of the car, so that all cars are not disturbed by the opposite light when driving at night, and the driving safety is improved. ...

I also like animals very much. I like watching some movies about animals. I have several excellent world animal films, such as Antarctic Adventure, Mr. Pope's Penguin and Eight Dogs. I saw the guide dog Xiao Q the other day and was deeply shocked by the loyalty, meekness and tragic fate of the blind. After reading it, I think the number of guide dogs is always limited, and how many blind people live in boundless darkness? Now it's in the car, and even the driverless car is being tested. Why can't these technologies be applied to guide rods?

The idea suddenly cheered me up. I've been thinking it over and over again, and I've also looked up some relevant information. On the basis of learning from others' strengths and making up for others' shortcomings, I imagine that this kind of blind guide rod is like this: its main body is composed of wireless Bluetooth headset and metal rod. The metal walking stick is simple in appearance, and one of the biggest differences from the general long walking stick is that the bottom of the walking stick is equipped with a small wheel, which can control the walking direction; Secondly, the stick can be shrunk, and when not in use, it can be harvested into the size of a pen and inserted into your pocket to take it at will.

Of course, this is not its biggest function. A miniature electronic eye and a microchip are installed at the upper end of this stick, and the "navigation information of the blind in Gaode" is stored in the chip. When the blind man turns on the "start" mode, he puts on the wireless Bluetooth headset and the voice navigation system starts at the same time. All the departure, route and road safety are in the voice prompt-just like putting a pair of talking eyes on the blind. When blind people travel, they no longer have to worry about vehicles, bends, stones and ditches on the road. Of course, blind roads can also fade out from the ground. Even indoors, this electronic system can accurately convert image information into voice information and guide the daily life of the blind.

When navigation is not needed, wireless Bluetooth is still a leisure for the blind. You can enjoy music, read books and listen to the news at an appropriate volume without disturbing others at all.

I hope that in this ever-changing digital age, this product will appear as soon as possible, so that all blind people can enjoy this pair of "Eye of the Sky" from the digital age as soon as possible.

What is the Eye of the Sky? Are they the eyes in the sky? What does it see in the sky? Looking at the beautiful earth? Are you watching Chang 'e on the moon playing with rabbits? Or are you watching aliens say hello?

One day this summer, we came to Pingtang, Guizhou and stayed in a hotel in Astronomical Town. This is really a hotel in Astronomical Town! When I got to the floor where I lived and got out of the elevator, the light was very dark, as if I couldn't see anything. Did the hotel forget to turn on the light? So I became a "scout" and groped forward carefully. When I approached a sensor, the lights in the whole corridor suddenly lit up. Although we can see the road clearly, the light is not very bright and a little hazy, which makes us feel like walking in space. The room is also very scientific and modern, and there are astronomical telescopes on the balcony! In the evening, I observed the stars and the moon. I am very excited and looking forward to the next day's trip, because we are going to see the Eye of the Sky!

The next morning, I got up early and went to the Astronomical Experience Hall with excitement. I saw the model of the eye of the sky and learned a lot about space and astronomy. After visiting the Astronomical Experience Hall, we took a bus ferry, bypassed the mountains and walked all the way. I found a "strange" phenomenon, that is, there is no "low-headed family" on the ferry today. Oh, I forgot to tell you that in order to ensure that Tian Yan can see farther and more clearly, all tourists are not allowed to bring mobile phones and anything with metal. The five-kilometer radius of Tian Yan is a "silent zone" and there can be no interference from wireless signals, so these "low-headed people" are forced to look up.

The car ferry finally arrived at the gate of Tianyan Scenic Area. We climbed more than 700 steps along the way, and the hard climb finally paid off: I saw the "big bird's nest" and the "eye of the sky". The eye of heaven is much bigger than I thought before. Its caliber is 500 meters, which is equivalent to the size of 30 standard football fields. In the distance, the rolling mountains are like an endless ocean. In the center of this green ocean, there is a silver-gray "cauldron", which is the "500-meter spherical radio telescope (FAST)"-a 500-meter spherical radio telescope. This is the largest "pot" in the world! This cauldron is very useful. It can observe pulsars, search for extraterrestrial life and even let us know the origin of the universe.

The 500-meter spherical radio telescope (FAST) is the largest spherical radio telescope in the world at present, and it will still rank first in the world at least in the next twenty or thirty years. I am proud of our motherland. I believe that the 500-meter spherical radio telescope (FAST) will also make greater contributions to mankind and let us know more about the mysteries of the vast universe.

Tian Yan Composition 4 The world's largest spherical astronomical radio telescope, whose scientific name is FAST, is located in Guizhou, China. China people gave it a nice name-"Eye of the Sky".

I have always wanted to see the famous "500-meter spherical radio telescope (FAST)". Finally, my father decided to take me to see "Eye of the Sky" in Pingtang County, Guizhou Province.

After 800 kilometers of hardships, we came to Astronomy Town, Pingtang County, Guizhou Province. After a series of complicated procedures, we finally came to the "Eye of the Sky" scenic spot.

When my eyes fell into my eyes for the first time that day, the word "big" came to my mind, and it felt as big as 10 our school. But we don't know much about the Eye of the Sky, so my mother invited a tour guide aunt to explain it to us in detail. After my aunt's explanation, I learned a lot about Tian Yan:

The Eye of the Sky was conceived by the famous astronomer Nan Rendong in 1994. After 23 years' efforts, more than 300 candidate sites have been selected and many schemes have been designed. 20 13 started construction in Pingtang and was officially put into use on September 25th, 20 16.

When the guide aunt explained, I suddenly thought in my mind, why should the Eye of Heaven be built in the mountains of Guizhou? My aunt also saw my doubts. She told me with a smile: there are three reasons. 1 means that there are many mountains and depressions in Guizhou. Choosing this place can save a lot of manpower and financial resources. 2. In this place surrounded by mountains, the communication is very backward, and the electricity was turned on after 2000, so there is basically no interference to the work in Tian Yan. There are many caves in this pit, forming a natural drainage system, so that the rain will not corrode the precision equipment under the eye of the sky.

Sky Eye is the largest and most sensitive radio telescope in the world. Its comprehensive performance is ten times that of Arecibo, a world-famous radio telescope. It can receive all cosmic ray signals within a distance of 65.438+037 billion light years.

Tian Yan's main job is not to find alien monsters, but to find a mysterious planet-pulsar. Why look for pulsars? Pulsar is a relatively independent neutron star because it is a beacon in the universe. When the sun is about to die one day, we will start to escape from the solar system and find a new place to live, just like wandering the earth. Without pulsars, we will get lost in the universe and become a real wandering planet. Maybe we will meet a black hole or tear us to pieces or swallow us up as a terrible celestial body.

Hearing this, I think there are too many mysteries in the universe. We only have a small part. There are still many unknown mysteries waiting for us to explore in the endless universe. I believe that one day we will solve the mystery of the universe, and I will study hard to make myself a knowledgeable person, a person like Grandpa South Ren Dong.