First, high heels

/kloc-a venetian businessman in the 0/5th century often went out to do business, but he was worried that his wife would go out to have an affair. One rainy day, he was walking in the street, with a lot of mud on his heels, and he walked very hard. Businessmen are inspired by this, because Venice is a water city and boats are the main means of transportation. The businessman thinks that his wife will not be able to walk on the springboard in high heels, so she can be trapped at home.

Unexpectedly, his wife felt very novel when she put on these shoes. Accompanied by the servant, she got on and off the boat and played around. High-heeled shoes made her more graceful, and fashionable ladies rushed to follow suit, so high-heeled shoes quickly became popular.

Second, raincoats.

1747, French engineer Franois Fraineau made the world's earliest raincoat.

He used latex obtained from rubber wood to dip cloth shoes and jackets in this latex solution, which can play a waterproof role.

McIntosh, who works in a rubber factory in Scotland, can't afford rain gear because he lives in poverty. Every rainy day, he can only go to work in the rain. One day, he accidentally spilled rubber juice on his clothes and couldn't wipe it off, so he had to wear this dirty clothes to go home.

It was raining outside, but when McIntosh came home, he was surprised to find that his clothes were not wet at all. He just smeared rubber juice on his clothes. This is the first rubber raincoat in the world.

Third, the phonograph

Edison was a famous American scientist and inventor. Because he has many inventions 1000, such as electric light, phonograph, film and storage battery, 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, nothing shocked the society at that time more than the phonograph. /kloc-in the autumn of 0/877, the phonograph invented by Edison caused a sensation throughout new york, and reporters from various newspapers flocked to report this unusual news.

Fourth, the telephone.

That was June 2nd, 1875. Bell and his assistant Watson are experimenting with multiple telegrams in two rooms respectively. An accidental accident inspired Bell. In Watson's room, there is a spring stuck to the magnet of the telegraph. When Watson pulled it away, it shook.

At the same time, Bell was surprised to find that the spring on the telegraph in his room vibrated and made a sound. It is the current that transmits vibration from one room to another.

Bell's mind suddenly broadened. He thought: If a person speaks to a piece of iron, the sound will cause the iron to vibrate; If an electromagnet is placed behind the iron sheet, the vibration of the iron sheet will inevitably produce large and small currents in the electromagnet coil. This fluctuating current travels far away along the wire, so that similar devices in the distance will not vibrate and make the same sound.

Bell and Watson made the telephone according to this new idea. In an experiment, a drop of sulfuric acid splashed on Bell's leg, which made him cry. "Mr. Watson, I need you. Please come to me! " "This sentence is the phone through the wire to Watson's ear, the phone succeeded! 1On March 7th, 876, Bell became the patentee of telephone invention.

Five, lightning rod

The modern lightning rod was invented by American scientist Franklin. Franklin thought lightning was a discharge phenomenon. In order to prove this point, he risked being struck by lightning on a thunderstorm day in July 1752, put a kite with a long metal wire into the thunderstorm cloud and tied a string of silver keys at the end of the metal wire.

When the thunder and lightning happened, Franklin's hand was close to the key, and a string of electric sparks burst out on the key. My hands are still numb. Fortunately, the lightning passed down this time was very weak, and Franklin was not injured.

2. For short stories about popular science, 100 is the best.

Solar-solar wind sneezing

2 1 10 One day in 2000, children from bright primary school who participated in a spring outing in space were videotaping their parents on the space station. The children are chattering to their parents about their experiences in space. Suddenly, the video was interrupted. The staff also reported to the stationmaster that they had completely lost contact with the earth. Now the children are all in a panic, and then the teacher takes no time to explain to everyone: don't worry, this is the solar wind at work. The children are busy asking: what is the solar wind? The teacher said: the solar wind is a high-speed charged particle stream emitted by the sun. Like the sun sneezing. Compared with the earth's wind, the solar wind is less dense, only one-tenth of the earth's wind, but its speed is dozens of times that of the earth's wind speed. These charged particle streams will interfere with our communication. But now we have been able to reduce this influence through laser communication technology.

3. Science stories 100 words

One day, Edison, the great inventor, pointed to the hen that was hatching eggs and asked his mother, "What is the hen doing sitting under the egg?" Mother said, "Oh, that's a chicken!" " "In the afternoon, Edison suddenly disappeared, and the family was anxious to look around and finally found him in the henhouse.

It turned out that he was squatting in the chicken coop, and * * * put down a lot of eggs to hatch chickens! When his parents saw it, they were so distressed that they had to pull him out and wash his face and clothes. Another time, when he saw birds flying freely in the sky, he thought: Since birds can fly, why can't people fly? So, he found a kind of powder for his friends to eat, in order to let them fly into the sky.

As a result, the little friend almost died, and Edison was severely beaten by his father.

4. A little knowledge of popular science should be as simple as 100.

1 Weather refers to meteorological phenomena that occur in a short time (from several minutes to several days), such as thunderstorm, hail, typhoon, cold wave and strong wind.

2. What is climate climate refers to the long-term average of various meteorological elements in a long period (month, season, year, year, even hundreds of years, etc.). It is a comprehensive reflection of the basic characteristics of cold, warm, dry and wet weather conditions in a region.

3. Climate resources Climate resources refer to natural substances and energy widely existing in the atmosphere, such as light energy, heat energy, precipitation and wind energy. , can be directly or indirectly used by people, forming wealth, with use value. It is a very precious renewable natural resource and the basic condition for the survival and development of human society, and has been widely used in all aspects of the national economy and people's livelihood.

4. Microclimate Microclimate is a unique climate in some areas under the same climate background, which is formed due to the inconsistency of topographic orientation, soil conditions and vegetation. The characteristics of microclimate are mainly manifested in the drastic changes of individual meteorological elements and the differences of individual weather phenomena.

Urban climate is a local climate or microclimate formed under the macro-climate or regional climate background due to the influence of urbanization. The urban climate is characterized by five islands, namely, heat island, wet island, dry island, rainy island and mud island.

6. Heat island effect Heat island is a comprehensive phenomenon of microclimate change caused by people changing the urban surface, and it is one of the most obvious characteristics of urban climate. Due to the acceleration of urbanization, dense urban buildings, asphalt roads and cement pavements have greater heat capacity and heat absorption rate than the soil and vegetation in the suburbs, which makes the urban area store more heat and radiate it to the surrounding areas and the atmosphere, resulting in the temperature in the urban area being generally higher than that in the surrounding suburbs at the same time. The high-temperature urban area is surrounded by low-temperature suburbs, just like an island in the sea of Wang Yang. This phenomenon is called urban heat island effect.

7. Why the air pressure in winter is higher than that in summer refers to the pressure produced by the air column per unit area on the earth. The air pressure in a place often changes. When the air pressure drops, it is rainy, the weather rises and the weather turns fine. There are many reasons for the change of air pressure. The change of temperature is a very important reason for the change of pressure. When the air is cooled, the air contracts, the density increases, the weight of air column per unit area increases, and the air pressure also increases. Therefore, the arrival of cold air is always accompanied by the increase of air pressure; When warm air comes, the air pressure tends to drop. Winter is a world of cold air and summer is a world of warm air, so obviously, the air pressure is high in winter and low in summer.

5. Science stories 100 words

One day, Edison, the "king of invention", pointed to the hen that was hatching eggs and asked his mother, "What is the hen doing sitting under the egg?" Mother said, "Oh, that's a chicken!" " "In the afternoon, Edison suddenly disappeared, and the family was anxious to look around and finally found him in the henhouse.

It turned out that he was squatting in the chicken coop, and * * * put down a lot of eggs to hatch chickens! When his parents saw it, they were so distressed that they had to pull him out and wash his face and clothes. Another time, when he saw birds flying freely in the sky, he thought: Since birds can fly, why can't people fly? So, he found a kind of powder for his friends to eat, in order to let them fly into the sky.

As a result, the little friend almost died, and Edison was severely beaten by his father.

6. Children's popular science stories 100 words

Science originates from life. Starting from life, life is the source of science.

Gong Gongxiang (Lu Ban) attaches great importance to the observation and study of objective things. Inspired by natural phenomena, he devoted himself to creating inventions. He cut his finger on the grass while climbing the mountain. He picked the grass and examined it carefully. He found small teeth on both sides of the grass, so he made a logging saw by imitating the grass. When he saw all kinds of birds flying freely in the sky, he cut them into kites with bamboo and wood and flew in the air with the help of the wind. It took a short time to start flying, but after repeated research and continuous improvement, it has been able to fly in the air for a long time.

King Hennon asked the goldsmith to make a pure gold crown for him. After it was done, the king suspected that the craftsman had mixed silver into the crown, but the crown was as heavy as the pure gold given to the goldsmith at the beginning. Did the craftsman play tricks? The problem of trying to test the authenticity without destroying the crown not only stumped the king, but also made the ministers look at each other. Later, the king gave it to Archimedes. Archimedes thought hard about many methods, but all failed. One day, he went to the bathhouse to take a bath. Sitting in the bathtub, he saw the water overflowing and felt his body being gently pulled up. He suddenly realized that he jumped out of the bathtub and went straight to the palace without clothes, shouting "Eureka" and "Foreka" all the way. It turns out that if the crown is put into water, the amount of water released is not equal to the amount of water released by the same weight of gold, and it must be mixed with other metals. This is the famous law of buoyancy, that is, an object immersed in a liquid is subjected to upward buoyancy, and its size is equal to the weight of the liquid discharged by the object. Later, this law was named Archimedes principle.

7. Children's popular science stories 100 words

Science originates from life and life is the source of science. Like Gong Gong (Lu Ban), he attached great importance to the observation and study of objective things. Inspired by natural phenomena, he devoted himself to creating inventions.

He cut his finger on the grass while climbing the mountain. He picked the grass and examined it carefully. He found small teeth on both sides of the grass, so he made a logging saw by imitating the grass. When he saw all kinds of birds flying freely in the sky, he cut them into kites with bamboo and wood and flew in the air with the help of the wind. It took a short time to fly. After repeated research and continuous improvement, he can fly in the air for a long time. King Hennon asked the goldsmith to make a pure gold crown for him. When it was finished, the king suspected that the craftsman had mixed silver into the gold crown, but the gold crown was as heavy as the pure gold given to the goldsmith. Did the craftsman play tricks? The problem of trying to test the authenticity without destroying the crown not only stumped the king, but also made the ministers look at each other.

Later, the king gave it to Archimedes. Archimedes thought hard about many methods, but all failed.

One day, he went to the bathhouse to take a bath. Sitting in the bathtub, he saw the water overflowing and felt his body being gently pulled up. He suddenly realized that he jumped out of the bathtub and went straight to the palace without clothes, shouting "Eureka" and "Foreka" all the way. It turns out that if the crown is put into water, the amount of water released is not equal to the amount of water released by the same weight of gold, and it must be mixed with other metals.

This is the famous law of buoyancy, that is, an object immersed in a liquid is subjected to upward buoyancy, and its size is equal to the weight of the liquid discharged by the object. Later, this law was named Archimedes principle.

8. Encyclopedia of popular science stories

Mystery of golden crown

King Hennon asked the goldsmith to make a pure gold crown for him. After it was done, the king suspected that the craftsman had mixed silver into the crown, but the crown was as heavy as the pure gold given to the goldsmith at the beginning. Did the craftsman play tricks? The problem of trying to test the authenticity without destroying the crown not only stumped the king, but also made the ministers look at each other. Later, the king gave it to Archimedes. Archimedes thought hard about many methods, but all failed. One day, he went to the bathhouse to take a bath. Sitting in the bathtub, he saw the water overflowing and felt his body being gently pulled up. He suddenly realized that he jumped out of the bathtub and went straight to the palace without clothes on. He shouted "Eureka" and "Frica" all the way. It turns out that if the crown is put into water, the amount of water discharged is not equal to the same weight of gold, and it must be mixed with other metals. This is the famous law of buoyancy, that is, an object immersed in a liquid is subjected to upward buoyancy, and its size is equal to the weight of the liquid discharged by the object. Later, this law was named Archimedes principle.

9. A short story about scientific knowledge

1. Why does sorbet get angry?

The reason why sorbet bubbles is because there is a lot of invisible water vapor in the outside air. When it comes to cold sorbet, it will liquefy into droplets when it is cold. It seems that the sorbet is bubbling.

2. Why do sunflowers always face the sun?

Sunflower stems contain a wonderful auxin. This auxin is very afraid of light. When it is illuminated, it will go to the backlight side, and the cells on the backlight side will multiply rapidly. Therefore, the backlit side will grow faster than the bright side, which will bend the sunflower to light.

3. Why do cicadas shed their skin?

Cicada's shell (exoskeleton) is hard and can't expand with the growth of cicada. When the cicada grows to a certain stage, the cicada's exoskeleton restricts its growth, and the cicada loses its original exoskeleton, which is cicada slough.

4. How do bees make honey?

Bees spit the collected sweet flower juice into an empty beehive. At night, they suck sweet juice into their honey stomachs to make it, and then spit it out and swallow it. It takes 65,438+000 ~ 240 times to make sweet honey.

Please turn off the lights and flash when taking pictures on the TV screen.

The photos taken in this way are clearer. Because the reflected light of the flash lamp and the illuminating lamp on the TV screen will interfere with the transmitted light of the TV picture.

10. Science story 100 or more, 105 or less.

Benjamin Franklin accidentally thought of inventing the lightning rod: Franklin's most famous discovery was the unification of heaven and earth electricity, which broke people's superstition about lightning.

In the process of discharge experiment with Leiden bottle, Franklin could not help but think of lightning in the sky in the face of the flash and crack of electric spark. He realized that the spark in the Leiden bottle might be a small lightning. In order to test this idea, lightning in the sky must be brought to the ground.

1752 On a thunderstorm day in July, Franklin made a big kite with silk, put a tapering iron wire on the top of the kite, and connected the iron wire with the ground with silk thread. At the end of the silk thread is tied a copper key, which is in a Leyden bottle. Franklin put the kite in the sky, and a flash of lightning struck, only to see the hairs on the silk thread stand up and put his hand close to the copper key, which is an electric spark.

The Temple of Heaven was finally caught. Franklin discovered all the phenomena that the Leiden bottle that stored the sky electricity could produce the earth electricity, which proved that the sky electricity and the earth electricity were the same.

1747, Franklin discovered the phenomenon that the tip is easier to discharge from the Leyden bottle experiment. After he discovered the unification of sky electricity and ground electricity, he immediately thought of using the principle of tip discharge to introduce powerful lightning in the sky into the ground to avoid buildings being struck by lightning. 1760, Franklin erected a lightning rod on a building in Philadelphia, and the effect was very remarkable.