The contents of the popular science world manuscript 1 1) vigorously implement the strategy of rejuvenating the country through science and education and the strategy of sustainable development!
2) Relying on scientific and technological progress to promote economic development by leaps and bounds.
3) Knowledge changes life, and technology creates the future!
4) Establish Scientific Outlook on Development and build a conservation-oriented society!
5) Pay attention to science and technology and create legends.
6) Technology-the wings of young eagles.
7) Arm your mind with knowledge and realize your dreams with science!
8) Technological innovation-a world that stimulates creativity!
9) The light of science and technology creates the future!
10) learn, love, talk and use science!
When it comes to "technology", perhaps the first thing you think of is cutting-edge technology such as rocket ascending into the sky, submarine entering the water, suspended train, Shenzhou-8 and Tiangong-1. In fact, technology is not far away from us: when the hot summer comes, we can enjoy the cool in a comfortable air-conditioned room; When we are hungry, my mother cooks a delicious meal for us with an induction cooker, a rice cooker and a microwave oven. When we are too busy studying or working to take care of a lot of clothes to change, the washing machine solves the problem for us … Look, technology is around us.
Going home from school on Friday, sitting in front of the TV, listening to pop songs and watching Chinese and foreign news anecdotes broadened my horizons, enriched my knowledge and made me happy. It's really "knowing what's going on in the world without leaving home."
When visiting relatives and friends, electric cars, motorcycles and even more and more popular cars have shown infinite charm. It won't be long before we can get together with our relatives and friends under the breeze.
When we go out to travel, or get on the train and fly in the mountains, we can see the beauty of nature at a glance; Or fly in the vast sky, accompanied by blue sky and white clouds; Even sitting on the maglev train, you can feel the comfort of lightning speed. Technology is really amazing and brings people a lot of convenience.
The emergence of telephones and mobile phones has made us bid farewell to the era of flying pigeons delivering books and enhanced the communication between people. The popularization and use of computers not only brings people a way to get rich, solves many problems in people's lives, but also eliminates the pain of missing distant relatives. This summer vacation, my family bought a computer. Through the video, grandma met her father who worked in Guangzhou. This made grandma very happy, changed her old malaise, and she was happy all day, and never nagged her father to come back to chat with her again.
Even in our rural schools, computers and multimedia devices are used in classrooms, which greatly improves our interest in learning.
……
Watt invented the steam engine, Edison invented the incandescent lamp, Franklin invented the lightning rod, and Bell invented the telephone ... It is the development of science and technology that leads the continuous progress of human society. Our great ancestors, after numerous experiments, have created many miracles for us. Nowadays, the development of science and technology is in full swing, and great achievements have been made in military, medical, aviation and daily life. Cloning technology and nanotechnology are no longer strangers.
We live in the age of science and technology, and we grow up in the life of science and technology. As the founders of the new century, we should set up lofty aspirations and bravely climb the peak of science and technology. Looking forward to the future, the motherland will be a great landscape, and in the near future, our life will be better by science and technology.
Technology is not only around me, but also in my heart, in my swaying dream.
Catalogue of popular science world manuscripts 3 1. Why are most seawater blue and green?
Looking at the sea, it is often found that the sea water is blue-green. However, when you pick up the sea water, you can only see it as transparent and colorless as old water. It turns out that the seawater itself is not much different from the water we touch every day, and it is also transparent. The green we see is actually a phenomenon caused by the ability of seawater to absorb light. Only green light can be absorbed and reflected by seawater; When the seawater is deep, the green light is also absorbed, and the seawater looks blue.
2. Why do you get goose bumps?
Hair grows on the surface of our skin, and there is a vertical hair muscle under each pore. When stimulated by nerve (such as anger, fear, cold, etc. ), the body temperature will drop, the vertical hair muscles will contract, making the hair stand up and form goose bumps. In addition to keeping warm, this physiological system can make animals look bigger than they really are, thus scaring off enemies.
3. The seahorse was born in dad's belly?
Almost all animals are females, but the hippocampus is different. It's male. On the belly of the male hippocampus, there is an incubator similar to a kangaroo "pouch", and the female hippocampus will discharge the eggs into the incubator of the male hippocampus. Since then, the male hippocampus has assumed the responsibility of pregnancy. In about three weeks, the little sea horse will pop out of his father's body.
4. Why do leaves change color?
The reason why leaves change color is related to the chemical substance chlorophyll. When autumn comes, the days are shorter and the temperature is lower than that in summer, so the leaves stop producing chlorophyll and the remaining nutrients are transported to the trunk and roots for storage. Leaves lack green chlorophyll and other chemical pigments appear at the same time, so we often see yellow and brown leaves.
5. Why are there fallen leaves?
It's fall here. Leaves evaporate more water than in summer, but roots absorb less water than in summer. In order to reduce the water loss of trees, stem cells began to form separation layers. When the nutrients leave the leaves completely, the separation layer separates the leaves from the trunk and leaves fall off.
The Milky Way is a celestial system with hundreds of billions of stars and a lot of interstellar matter, and the sun is an extremely ordinary medium-sized star in the Milky Way. The silvery white band we see in the clear sky on a summer night is the projection of the Milky Way on the celestial sphere, and the shining white is the brilliance of dense stars.
If you look at the Milky Way from the outside, it should be a discus-shaped galaxy with a spiral structure. The diameter of the disk of the Milky Way is about 654.38+ million light years, the diameter of the nuclear sphere is about 654.38+ million light years, and the diameter of the silver core is about 3 light years. Our sun is on a spiral arm of the Milky Way, about 40,000 light years away from the center of the Milky Way. So when you look at the Milky Way on the earth, the side facing the silver heart is dense and bright, and the other side is sparse and dim. There are relatively dense stars in the silver disk, especially some relatively young or even forming stars, open clusters, interstellar media and gas nebulae on spiral arms; Old globular clusters are distributed in silver halos; There is a huge black hole in the center of the huge silver core. The total mass of the Milky Way is 65.438+04 billion solar mass, of which 90% are stars and 654.38+00% are interstellar media composed of gas and dust. The whole galaxy rotates around an axis perpendicular to the silver disk, and the sun rotates at a speed of 220 kilometers per second.
1. What are the ways of drug residues in meat, eggs and fish? Feed livestock, poultry and fish with contaminated feed, and use antibiotics and other drugs to prevent diseases. )
2. What is a green community? (A green community refers to a community that has certain hardware facilities that meet the requirements of environmental protection and has established a relatively complete environmental management system and public participation mechanism. )
3. What is a green hotel? What does a green hotel (hotel) contain? Green hotel (hotel) refers to a hotel (hotel) that takes sustainable development as its concept, integrates environmental management into hotel management, applies the concepts of environmental protection, health and safety, adheres to green management and cleaner production, advocates green consumption, protects the ecological environment and makes rational use of resources. Its core is to provide customers with green rooms and green restaurants that meet the requirements of environmental protection and human health, and to strengthen environmental protection and rational use of resources in the production process.
4. Why refuse to eat wild animals? Because eating wild animals destroys the ecological environment, many wild animal species in China are on the verge of extinction; The second is to eat wild animals, which is easy to infect germs)
5. What does green consumption include? (It can be summarized as: saving consumption and reducing pollution; Green life, environmental protection procurement; Reuse, multi-layer utilization; Classified recycling, recycling; Protect species, everything is born)
6. In order to reduce air pollution and traffic congestion, what mode of transportation should be advocated when traveling? (Bicycles, buses, trams, subways and other public transport)
7. How much recycled paper can be produced by recycling one ton of waste paper? (800 kg)
8. What is the function of the forest? Absorb carbon dioxide, generate oxygen, prevent climate change, conserve water, prevent wind and sand, and maintain ecological balance. )
9. wok, aluminum pot or stainless steel pot, which wok is most beneficial to health? (iron pot)
10. What are the main environmental problems of the city? Air pollution, water pollution, solid waste and noise pollution. )
1 1. What are the five major human problems in the world today? Population, food, energy, resources and environment. )
12. What are the main things in pollution-free energy? Solar energy, ocean energy, wind energy, geothermal energy and hydropower. )
13. What are the China tree species known as "living fossils"? (Silver fir, ginkgo, Davidia involucrata, fragrant fruit tree. )
14. The biggest desert in the world is the Sahara desert. The largest desert in China is (Taklimakan Desert).
15. Bird Love Week in China is the last week of April every year.
16. What are the top ten scenic spots in China?
17. Guilin Landscape, Beijing Forbidden City, Suzhou Gardens, Three Gorges of the Yangtze River, Sun Moon Lake in Taiwan, Terracotta Warriors and Horses in Qinling Mountains, West Lake in Hangzhou, Huangshan Mountain in Anhui, chengde mountain resort.
18. The South-to-North Water Diversion Project is to introduce the abundant water resources of the Yangtze River into the Yellow River and alleviate the water shortage in the central and western regions.