1. Science story in 100 words Science
1. High heels
A Venetian businessman in the 15th century often had to go out to do business, and was worried that his wife would Go out and have fun. One rainy day, he was walking on the street. There was a lot of mud on the heels of his shoes, making it difficult to walk. The businessman was inspired by this, because Venice is a water city and boats are the main means of transportation. The businessman believed that his wife would be unable to walk on the springboard wearing high heels, so he could trap her at home.
Unexpectedly, his wife put on these shoes and felt very novel. Accompanied by the servant, she got on and off the boat and played around. High heels made her more graceful and graceful, and fashionable ladies rushed to imitate her, and high heels quickly became popular.
2. Raincoat
In 1747, French engineer Francois Freno made the world's earliest raincoat.
He used latex obtained from rubber wood, and after dipping the cloth shoes and coats in this latex solution, they could be waterproofed.
McIntosh, who works in a Scottish rubber factory, is living in poverty and cannot afford to buy rain gear. He has to commute to get off work in the rain every rainy day. One day, he accidentally stained his clothes with rubber juice and couldn't wipe it off, so he had to go home wearing the dirty clothes.
It was raining outside. When McIntosh returned home, he was pleasantly surprised to find that the clothes he was wearing were not wet at all. He simply smeared rubber juice all over his clothes. This is the world's first tape raincoat.
3. Phonograph
Edison is a famous American scientist and inventor. Because he has more than a thousand inventions such as electric lights, phonographs, movies and batteries, people call him "The King of Inventions" and "The Magician".
Edison’s greatest achievement was the invention of the electric light. However, among his inventions, the one that shocked society the most was the phonograph. In the fall of 1877, the phonograph invented by Edison caused a sensation throughout New York. News reporters from various newspapers came like a tide to report this big news.
4. Telephone
It was June 2, 1875. Bell and his assistant Watson were testing multiplex telegraph machines in two rooms respectively. An accident happened by chance. Inspired by Bell. There was a spring on the telegraph machine in Watson's room that was stuck to the magnet. When Watson pulled the spring open, it vibrated.
At the same time, Bell was surprised to find that the spring on the telegraph machine in his room vibrated and made a sound. It was the current that transmitted the vibration from one room to another.
Bell's mind suddenly opened up, and he thought: If a person speaks to a piece of iron, the sound will cause the iron piece to vibrate; if an electromagnet is placed behind the iron piece, the iron piece will vibrate. Vibration is bound to produce a current that is large and small in the electromagnet coil. This fluctuating current is transmitted to the distance along the wire, and the same vibration and sound will occur on similar devices in the distance.
Bell and Watson made a telephone according to the new idea. During an experiment, a drop of sulfuric acid splashed on Bell's leg, causing him to shout in pain: "Mr. Watson, I need you, please come to me!" This sentence was transmitted to Watson's ears from the telephone through the wire. Here, the call was successful! On March 7, 1876, Bell became the patentee of the telephone invention.
5. Lightning Rod
The modern lightning rod was invented by the American scientist Franklin. Franklin believed that lightning was an electrical discharge. To prove this, on a thunderstorm day in July 1752, he risked being struck by lightning and flew a kite tied with a long metal wire into the thundercloud, and tied a bunch of silver keys at the end of the metal wire.
When thunder and lightning occurred, Franklin's hand approached the key, and a string of sparks burst out from the key. I still have numbness in my hands. Fortunately, the lightning passed down this time was relatively weak, and Franklin was not injured.
2. Looking for popular science stories, preferably 100
The Sun’s Sneeze - Solar Wind
One day in 2110, children from Guangming Primary School participated in the space spring outing. Video with parents on the space station. The children are chattering about their space experiences to their parents. Suddenly, the video cuts off. The staff also reported to the space station administrator that they had completely lost contact with the earth. Now the children were panicking, and the teacher calmly explained to everyone: Don't worry, this is the solar wind causing trouble. The children quickly asked: What is solar wind? The teacher said: Solar wind is the high-speed stream of charged particles emitted by the sun. Like a sneeze from the sun. Compared with the earth's wind, the density of the solar wind is small, only tens of billions of times that of the earth's wind, but its speed is dozens of times that of the earth's wind. These streams of charged particles can cause interference in our communications. But now we have been able to reduce the impact through laser communication technology.
3. Science story in 100 words
Edison, the King of Inventions. One day, he pointed to the hen that was hatching eggs and asked his mother: "The hen sat the eggs under the ***." What are you doing? Mom said: "Oh, that's hatching chicks!" "In the afternoon, Edison suddenly disappeared. The family looked around anxiously, and finally found him in the chicken coop.
It turned out that he was squatting in the chicken coop, laying many eggs to hatch. Where is the chicken? After seeing it, his parents couldn’t laugh or cry, so they had to pull him out, wash his face, and wash his clothes. Another time, he saw the birds flying freely in the sky and thought: Since birds can fly. , why can't people fly? So, he found a kind of medicinal powder for his little friend to fly into the sky.
As a result, the little friend almost died, and Edison was beaten hard by his father. After a meal.
4. The popular science knowledge should be about 100 words
1 Weather refers to meteorological phenomena that occur in a short period of time (a few minutes to a few days), such as thunderstorms, Hail, typhoons, cold waves, strong winds, etc.
2. What is climate? Climate refers to the long-term changes in various meteorological elements in a certain area over a long period of time (months, seasons, years, years, or even hundreds of years, etc.). The annual average. It is a comprehensive reflection of the basic characteristics of cold, warm, dry, wet and other weather conditions in a region.
3. Climate resources Climate resources refer to light energy and water that are widely present in the atmosphere. Heat energy, precipitation, wind energy, etc. can be used by people directly or indirectly, can form wealth, and are valuable natural substances and energy. They are a very precious and renewable natural resource and are the basis for the survival and development of human society. Conditions have been widely used in all aspects of the national economy and people's livelihood
4. Microclimate Microclimate refers to the inconsistency of terrain orientation, soil conditions and vegetation in local areas within the same macroclimatic background. It has unique climate conditions. The characteristics of microclimate are mainly reflected in the dramatic changes in individual meteorological elements and differences in individual weather phenomena.
Urban climate is affected by urbanization under the background conditions of macroclimate or regional climate. A kind of local climate or microclimate formed by the influence of urban climate shows the characteristics of the so-called "five islands", namely "heat island", "wet island", "dry island", "rain island" and "turbid island".
6. Heat island effect Heat island is a comprehensive phenomenon caused by microclimate changes caused by people changing the urban surface. It is one of the most obvious characteristics of urban climate. Due to the accelerated pace of urbanization, urban buildings are densely populated and asphalt roads are used. and cement pavements have greater heat capacity and heat absorption rate than soil and vegetation in the suburbs, causing the urban area to store more heat and radiate it to the surroundings and the atmosphere, causing the temperature in the urban area to be generally higher than the temperature in the surrounding suburbs at the same time , high-temperature urban areas are surrounded by low-temperature suburbs, like islands in the ocean. People call this phenomenon the urban heat island effect
7. Why is the air pressure higher in winter than in summer? The pressure generated by the air column on the earth per unit area. The air pressure in a place often changes. When the air pressure decreases, the weather becomes cloudy and rainy, and when the weather rises, the air pressure changes for many reasons.
Changes in air temperature are a very important reason for changes in air pressure. When air cools, it shrinks, its density increases, the weight of the air column per unit area increases, and the air pressure also increases. Therefore, when cold air arrives, it is always accompanied by an increase in air pressure; when warm air arrives, the air pressure often decreases. Winter is a world of cold air, and summer is a world of warm air. The reason why air pressure is high in winter and low in summer is very clear.
5. Science story in 100 words
One day, "The King of Invention" Edison pointed to the hen that was hatching eggs and asked his mother: "The hen sits on the egg. What's going on down there?" Mom said, "Oh, it's hatching chickens!" In the afternoon, Edison suddenly disappeared. The family looked around anxiously and finally found him in the chicken coop.
It turned out that he was squatting in the chicken coop, *** laying a lot of eggs to hatch the chicks! After seeing this, his parents couldn't laugh or cry, so they had to pull him out, wash his face, and wash his clothes. Another time, he saw birds flying freely in the sky and thought: Since birds can fly, why can't people fly? So, he found a kind of medicinal powder for his little friend to eat, in order to make the little friend fly into the sky.
As a result, the little friend almost died, and Edison was beaten severely by his father.
6. A 100-word popular science story for young children
Science originates from life, starts from life, and life is the source of science
Gongshu Ban (Lu Ban) pays great attention to Observing and studying objective things, he was inspired by natural phenomena and devoted himself to creating inventions. Once while climbing a mountain, his finger was cut by a grass. He picked the grass and looked carefully. He found that both sides of the grass blades were evenly arranged with small teeth, so he imitated the grass blades and made a saw for logging. He saw various kinds of saws. The little bird can fly freely in the sky, so he cut a flying harrier out of bamboo wood and tried to fly in the air with the help of wind. It took a short time to fly at first, but after repeated research and continuous improvement, it was able to fly in the air for a long time.
King Hernon asked the goldsmith to make him a pure gold crown. After it was completed, the king They suspected that the craftsman had mixed silver into the gold crown, but the gold crown was indeed as heavy as the pure gold that was originally given to the goldsmith. Did the craftsman do something wrong? Wanting to test the authenticity without destroying the crown, this problem not only stumped the king, but also made the ministers look at each other. Later, the king gave it to Archimedes. Archimedes tried hard to think of many ways, but they all failed. One day, he went to the bathhouse to take a bath. As he sat in the tub, he saw the water overflowing and felt his body being gently pulled up. He suddenly realized something, jumped out of the bath, and ran straight to the palace without even bothering to put on his clothes, shouting "Eureka", "Eureka" (Fureka, I know) all the way. It turned out that he had thought that if the crown was put in If the amount of water discharged after being immersed in water is not equal to the amount of water discharged by gold of the same weight, it must be mixed with other metals. This is the famous law of buoyancy, which states that an object immersed in a liquid is subject to an upward buoyant force equal to the weight of the liquid displaced by the object. Later, this law was named Archimedes' law.
7. A 100-word popular science story for young children
Science originates from life and is inspired by life. Life is the source of science. Gongshu Ban (Lu Ban) pays great attention to the observation and research of objective things. , he was inspired by natural phenomena and devoted himself to creating inventions.
One time while climbing a mountain, his finger was cut by a piece of grass. He picked the grass and looked carefully. He found that both sides of the grass blade were evenly arranged with small teeth, so he imitated the grass blade and made a cutting tool. Sawing, he saw various birds flying freely in the sky, so he cut a flying harrier out of bamboo wood and tried to fly in the air with the help of wind. It took a short time to fly at first, but after repeated research and continuous improvement, it was able to fly in the air for a long time. King Hernon asked the goldsmith to make a pure gold crown for him. After it was completed, the king suspected that the craftsman had adulterated the gold crown. Silver, but this gold crown is indeed as heavy as the pure gold that was originally given to the goldsmith. Did the craftsman do something wrong? Wanting to test the authenticity without destroying the crown, this problem not only stumped the king, but also made the ministers look at each other.
Later, the king gave it to Archimedes. Archimedes tried hard to think of many ways, but they all failed.
One day, he went to the bathhouse to take a bath. As he sat in the tub, he saw the water overflowing and felt his body being gently pulled up. He suddenly realized something, jumped out of the bath, and ran straight to the palace without even bothering to put on his clothes, shouting "Eureka", "Eureka" (Fureka, I know) all the way. It turned out that he had thought that if the crown was put in If the amount of water discharged after being immersed in water is not equal to the amount of water discharged by gold of the same weight, it must be mixed with other metals.
This is the famous law of buoyancy. An object immersed in a liquid is subject to an upward buoyant force equal to the weight of the liquid displaced by the object. Later, this law was named Archimedes' law.
8. A collection of popular science stories
The Mystery of the Golden Crown
King Hernon asked the goldsmith to make a pure gold crown for him. After it was done, the king They suspected that the craftsman had mixed silver into the gold crown, but the gold crown was indeed as heavy as the pure gold that was originally given to the goldsmith. Did the craftsman do something wrong? Wanting to test the authenticity without destroying the crown, this problem not only stumped the king, but also made the ministers look at each other. Later, the king gave it to Archimedes. Archimedes tried hard to think of many ways, but they all failed. One day, he went to the bathhouse to take a bath. As he sat in the tub, he saw the water overflowing and felt his body being gently pulled up. Suddenly he had a sudden enlightenment, jumped out of the bath, and ran straight to the palace without even bothering to put on his clothes, shouting "Fureka" (Fureka, I know) all the way. It turned out that he had thought that if the crown was put in If the amount of water discharged after being immersed in water is not equal to the amount of water discharged by gold of the same weight, it must be mixed with other metals. This is the famous law of buoyancy, which states that an object immersed in a liquid is subject to an upward buoyant force equal to the weight of the liquid displaced by the object. Later, this law was named Archimedes' law.
9. A short story about science
1. Why does sorbet steam?
The reason why ice cream steams is because there is a lot of water vapor in the outside air that is invisible to the eyes. When it comes into contact with very cold ice cream, it liquefies into mist droplets and surrounds the ice cream when it gets cold, making it look like ice cream. Same as "gasping".
2. Why do sunflowers always face the sun?
The stems of sunflowers contain a wonderful auxin. This auxin is very photophobic. When exposed to light, it will go to the backlit side, and at the same time, it will cause the cells on the backlit side to multiply rapidly. Therefore, the backlit side will grow faster than the light-facing side, causing the sunflower to develop a phototropic bend. .
3. Why do cicadas shed their skin?
The cicada’s outer shell (exoskeleton) is hard and cannot expand as the cicada grows. When the cicada grows to a certain stage, the cicada’s exoskeleton limits the growth of the cicada, and the cicada will lose its original structure. When the exoskeleton is taken off, it becomes the cicada.
4. How do bees make honey?
The bee first spits the sweet juice from the flowers into an empty hive. At night, it sucks the sweet juice into its honey stomach to prepare it, then spits it out, and then swallows it. It takes 100 to 240 turns to hesitate like this, and finally it becomes sweet honey
5. When taking pictures on the TV screen, turn off the lights and flash
This way The photos are clearer. Because the reflected light of the flash and lighting on the TV screen will interfere with the transmitted light of the TV picture.
10. Science stories of more than 100 words and less than 105 words urgent
Benjamin Franklin is He thought of inventing the lightning rod by chance: Franklin's most famous discovery was the unification of sky and earth electricity, which broke people's superstition about lightning.
During the discharge experiment with the Leyden jar, Franklin faced the flash and crackle of electric sparks, and could not help but think of the thunder and lightning in the sky. He realized that the electric sparks of the Leyden jar Maybe it was a small lightning bolt. To test this idea, lightning from the sky must be brought to the ground.
On a thunderstorm day in July 1752, Franklin made a big kite out of silk. A thin iron wire was placed on the top of the kite, and the wires were connected to the ground with silk threads. A copper key is tied to the end, and the key is placed in a Leyden jar. Franklin put the kite into the sky, and a burst of lightning struck down, and all the hairs on the silk thread stood up. When he put his hand close to the copper key, electric sparks were emitted.
Tiandian was finally captured. Franklin discovered that the Leyden jar storing electricity from the sky can produce all the phenomena that electricity from the earth can produce, which proves that electricity from the sky and electricity from the earth are the same.
In 1747, Franklin discovered the phenomenon that tips are more likely to discharge from the Leyden jar experiment. After he discovered the unity of sky electricity and earth electricity, he immediately thought of using the tip discharge principle to discharge electricity in the sky. Powerful lightning is introduced into the ground to prevent buildings from being struck by lightning. In 1760, Franklin erected a lightning rod on a building in Philadelphia, and the effect was very significant.