scientific popularization
Popular science knowledge is written knowledge that explains various scientific phenomena and theories in easy-to-understand language.
For the purpose of popularizing scientific knowledge.
Popularization of science and technology refers to the activities of popularizing knowledge of natural science and social science, spreading scientific ideas, carrying forward scientific spirit, advocating scientific methods and popularizing the application of science and technology in a way that is easy for the public to understand, accept and participate.
Popular science covers a wide range, including life science, marine science, environmental science, cosmology science, information science, earth science, energy science, biological exposition, transportation, military science, aerospace and so on.
Popular science venues and facilities are important places for the public to popularize education.
In order to enable people to better cope with popular science, China has also set up special popular science venues, such as China Science and Technology Museum, Beijing Planetarium, Chengdu Giant Panda Museum, Dalian Forest Zoo, Guangxi Science and Technology Planetarium, Henan Museum, Shanxi Science and Technology Department, Shanghai Natural Museum, Shenyang Science Palace, China Ancient Animal Museum, geological museum, China Science and Technology Museum, china agricultural museum and so on.
By the end of 200 1, there were more than 240 science and technology museums in Chinese mainland, including 2 1, 8 comprehensive nature museums, 6 museums established in nature reserves, 5 professional natural history museums1/kloc-0, agriculture, aviation, aerospace, post and telecommunications, railways, Chinese medicine and so on.
The history of human progress eloquently proves that science and technology are the great historical driving force of human progress and social development.
As a bridge between science and technology and human society, popular science is an eternal theme in human history.
From the perspective of sociology of science, the popularization of science is a universal social phenomenon, which must have its own? Growth point? .
The growing point of popular science lies in the intersection of nature and man, science and society.
That is to say, the interaction between natural science and human society has produced the popularization of science, and both science and technology and society are regarded as the popularization of science? Earth? Feed it to grow.
Scientific and technological progress and social development have provided new growth points for popular science work, which has a fresh vitality, strong sociality and the times.
Figuratively speaking, popular science is a platform with the times as the background, society as the stage, people as the protagonist, science and technology as the content and facing the general public? Modern civilized drama? There are no traditional reserved programs on this stage.
China characteristic popularization of science
Due to China's large population, backward education infrastructure and low per capita education level, the overall scientific literacy level of the public is relatively low.
In addition, China is currently a country with unbalanced economic and social development.
There are great differences in public scientific literacy between urban and rural areas, regions and occupations.
Therefore, the popularization of science in China is a multi-level three-dimensional project, which is richer than the western public's understanding of science, including popularizing scientific knowledge, advocating scientific methods, spreading scientific ideas and carrying forward scientific spirit.
Since the founding of New China, the popularization of science has been regarded as a public welfare undertaking, which has been highly valued by the government and all walks of life. A coordination body for popular science management has been established, a large number of popular science venues and facilities have been built, and a variety of popular science activities have been carried out.
China science popularization legislation
In June 2002, China promulgated the Law on Popularization of Science and Technology in People's Republic of China (PRC), which is the first law on popularization of science in the world.
Outline of the State Council's National Action Plan for Scientific Literacy in 2006
In 2009, Nanjing promulgated the Regulations on Science and Technology Popularization in Nanjing.
Article 2: Broadcast Draft of Popular Science Knowledge
Red Scarf Radio Talent Show (Week 3)
(Yin): Good morning, teachers and students. The red scarf broadcast will meet you on time again.
I am XXX from Class 6 (1), the announcer of this issue.
(Lu): I'm XXX from Class 5 (2). The theme of this red scarf broadcast is the propaganda of popular science knowledge.
Yin: Why do the stars twinkle? We see the stars shining, not because the luminosity of the stars has changed, but because of the occlusion of the atmosphere.
The atmosphere is between us and the stars. When starlight passes through the atmosphere, it will be affected by the density and thickness of the atmosphere.
The atmosphere is not absolutely transparent, and its transparency will change according to its density.
So when we look at the stars through it on the ground, we will see that the stars seem to be flashing.
(Lu): Why do sunflowers always bloom towards the sun? There is a substance called "auxin" in the stem under the sunflower disk.
This substance has the function of accelerating replication, but it is anti-optical, and it will run to the backlight side whenever it encounters light.
So when the sun rises, the stem of the sunflower immediately hides to the side of the backlight, as if the whole plant is bent in the direction of the sun.
(Yin): Why do fireflies glow? Fireflies emit light because there is a luminous body at the end of their abdomen, which is filled with a lot of phosphorus-containing luminescent substances and luminescent enzymes, so that fireflies can emit flashing light.
The purpose of fireflies is not only lighting, but also courtship, vigilance and trapping.
This is also a communication tool for them. Different kinds of fireflies emit light in different ways, frequencies and colors, so they can convey different information.
(Lu): Why can't a person have one or three thumbs? The average person has five fingers, each with a different length.
However, does anyone realize that besides the thumb, other fingers also have three sections, while the thumb alone has only two sections? It turns out that the number of joints is just the same as the other four fingers.
If it is three knots, the thumb will appear weak, so that it can't lift heavy objects; If there is only one section, it can't grasp things freely with the other four fingers!
Yin: Why is the sea mostly 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.
(Lu): Why do leaves change color? What is the cause of leaf discoloration and what are the chemicals it contains? 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.
Yin: Is there the Great Wall of Wan Li in China among the Seven Wonders of the World? Thousands of years ago, traffic was still backward and culture was underdeveloped, so the ancient Greeks didn't know how big the world was and how many countries there were.
In the eyes of the ancient Greeks, the Mediterranean Sea where they lived was the only ocean in the world. The countries along the Mediterranean are all countries in the world.
(Lu):? Seven Wonders of the World? Which seven wonders do you mean? People have always said different things, but at present, people often say that the seven wonders of the world are: 1. Egyptian pyramids.
The pyramids are the tombs of ancient Egyptian kings. It is tall and magnificent, showing the superb wisdom and technology of the ancient Egyptian people.
2. Hanging Gardens in Babylon.
Babylon is an ancient civilization, a hanging garden; It was built by a king of Babylon to ease his wife's homesickness.
3. The Faroes Lighthouse in Alexandria.
Alexandria is an important port in Egypt. Near the harbor, there is an island called Faross.
The Faroes Lighthouse was built on a big rock reef near the island.
The lighthouse is 135 meters high, and the torch on it has been burning day and night for nearly a thousand years.
(Yin): 4. Temple of Artemis.
Artemis is the name of the moon god in Greek mythology. The Greeks believed in her, so this temple was built for her.
The temple was built in 120 years, and its scale is extremely large.
5. Mao Solas Mausoleum.
More than 0/00 kilometers away from Al themis Temple/Kloc-,a luxurious mausoleum was built for a king named Mao Solas.
This mausoleum is the famous Mausoleum of Mao Solas.
6. Statue of Zeus.
On the famous Mount Olympia in southern Greece, stands a huge statue of Zeus.
Zeus was the most worshipped god in ancient Greece.
The statue of Zeus is15m high and is decorated with gold, silver and jewels.
It took people eight years to carve it.
7. The Colossus of the Sun God.
On the island of Rhodes in Greece, there is a 30-meter-high colossus of the sun god.
To commemorate Rhode Island getting rid of the long-term siege of the enemy, people built this colossus of the sun god.
(l): Among the seven wonders of the world, there is no Great Wall in Wan Li, China.
Why is this? Because? Seven Wonders of the World? This title was first named by the ancient Greeks.
Thousands of years ago, traffic was still backward and culture was underdeveloped, so the ancient Greeks didn't know how big the world was and how many countries there were.
In the eyes of the ancient Greeks, the Mediterranean Sea where they lived was the only ocean in the world. The countries along the Mediterranean are all countries in the world.
More than 2000 years ago, some magnificent buildings and statues appeared along the Mediterranean coast.
The ancient Greeks chose seven of the most magnificent buildings and named them? Seven Wonders of the World? .
Yin: The ancient Greeks didn't know that there was a civilized ancient China in the east of the world. What they don't know is that China people also built the most magnificent wall in the world, the Great Wall.
Of course, China people didn't know there were Greeks in the world at that time.
Therefore, among the seven wonders of the world, the Great Wall of China is not among them.
(Lu): Looking back at the course of civilization, it was the light of science and technology that swept away the darkness of ignorance in human history, and it was the fire of science that ignited the burning hope in human hearts; Science and technology support civilization, science and technology create the future, and the future is in our hands.
Let's become explorers of knowledge, let's travel on unknown roads, and make the world we live in a better place with our creations.
This red scarf is finished. Teachers and students, I'll see you next time.
Article 3: Broadcast Draft of Popular Science Knowledge
First, the title song "Planting the Sun"
Opening remarks:
Hello, teacher (female) and classmate (male)!
M: With this cheerful opening song, the radio meets you again.
I'm the host? .
Woman: I'm the host? .
M: Today, the columns we arranged for you include campus news, our songs, world tips, teaching you a trick, and exhibitions at home and abroad.
First, campus news.
W: We are the owners of the school. We care about our campus.
Please listen to the campus news next.
Second, our songs.
W: Songs are our favorite.
Today, we arranged an episode of "White" in The Journey to the West comics for you.
(Playing songs)
Third, the world.
Qi: The world is big, and there are no wonders.
M: next, we have arranged a small column for you to understand the mysteries of the world? World change? .
Woman: The haircut is upside down.
Turkish hairdresser Demir's method of bowing his head to cut hair has attracted many customers.
Man: Strange fish can walk.
Fish? Legs? Come and walk, your mouth is full of teeth. Skin? Have you ever seen a fish that is slippery, hard and has fine bones? Zhang Zhonggang, a citizen of Zunyi City, Guizhou Province, recently caught a strange fish near a small pond in the lower reaches of Xiangjiang River not far from home.
This fish weighs about four times. Touch any part of the fish with your hand, and all the fins of the fish will spread out immediately, and the tail fin will start swinging from side to side in a small range, and the four fins under your body will slide forward in tandem.
Fourth, teach you a trick.
Qi: There are many good ways to get twice the result with half the effort or get out of trouble in life.
We have arranged a small column for you to teach you a trick.
M: Human resources are limited. We need to learn to save money in life. Today, I will teach you a few tips to save electricity.
Woman: Don't stand by for home appliances.
Television, air conditioning and other household appliances, when the power switch is not turned off, the internal infrared receiving remote control circuit is often in standby state and still consumes power.
M: The water dispenser is powered on almost all the year round, and it is rarely turned off even during working hours and rest hours. This will not only waste electricity, but also affect the normal use of water dispensers.
W: Under the same brightness, energy-saving lamps save 80% electricity compared with incandescent lamps and have a longer life.
When watching TV, only turn on 1 watt energy-saving fluorescent lamp, which not only saves electricity, but also has ideal viewing effect.
Do you still have to go out when people are gone? Ever-burning lamp? .
Five, popular science knowledge
M: Why should primary school students pay special attention to sitting posture?
W: Some pupils like to read or write on their desks, or stand there wriggling and leaning their shoulders. These postures are incorrect and harmful to the health.
Man: The correct sitting posture is: torso straight, shoulders straight, head held high, eyes straight, legs vertical to the ground, feet flat on the ground.
If you need to work at your desk, the bending part should be in your arm, not your waist or back.
Some pupils like to bend over and bury their heads on the table when reading or writing. For a long time, the spine will bend and deform.
The correct standing posture should be that the whole body is upright, the head is raised, the eyes are looking straight ahead, the chest is slightly forward, the abdomen is slightly retracted, the hands are drooping, the heels are close together, and the toes are separated; Viewed from the side, the ears, shoulders and the greater trochanter (where the upper thigh protrudes) are in a straight line; Seen from the back, the shoulders are balanced and the shoulder blades are symmetrical on both sides of the spine.
Female: Primary school students are in the stage of growth and development. Whether the posture is correct or not has the most significant influence on their bones.
Their bones are calcified, and they always grow in any posture.
If you often bend over (bend forward or lean left and right), it will cause various spinal deformity flexion (kyphosis or kyphosis) for a long time.
If the sitting posture is correct and the thorax develops normally, the lungs can breathe freely and the heart will not be oppressed, thus ensuring that the internal organs are in normal positions and the physiological processes of the whole body can be carried out normally.
It can be seen that it is very important for primary school students to develop correct posture.
M: Happy times are always so short. Let's end today's red scarf broadcast in a beautiful melody.
Thank you for listening.
M: Teacher.
Woman: Children.
H: goodbye!