Interesting little knowledge about physics 1. Physics handwritten newspaper information
Think about the magic toothpicks in several easy-to-operate experiments: Will the toothpicks in the water swim with the sugar cubes in the water or with the soap in the water? Materials: toothpick, a basin of water, soap, sugar cube operation: 1. Carefully put the toothpick on the water.
2. Put the sugar cubes in the basin, away from the toothpicks. The toothpick will move towards the sugar cube.
Change a basin of water, carefully put the toothpick on the water, and now put the soap in the basin near the toothpick. Toothpicks will stay away from soap.
Note: When you put the cube in the center of the basin, it will absorb some water, so there will be a small water flow in the direction of the cube, and the toothpick will move with the water flow. However, when you put soap into the basin, the surface tension at the edge of the basin is strong, so you will pull the toothpick out.
Creation: Please try. If sugar and soap were replaced by other substances, in which direction would the toothpick swim to the perforated paper to hold water? Why can perforated paper hold water? Material: a bottle, a pin, a piece of paper, a full cup of colored water. Operation: 1. Fill the empty bottle with colored water. Punch many holes in the white paper with a pin.
3. Cover the bottle mouth with perforated paper. 4. Hold the paper with your hand, turn the bottle upside down, and make the bottle mouth face down.
Gently remove your hand, the paper will cover the bottle mouth and the water will not flow out of the hole. Description: Tissue paper can hold up the water in the bottle because atmospheric pressure acts on the paper, resulting in upward tension.
Water will not leak out from the small holes because water has surface tension, and water forms a water film on the surface of paper, so water will not leak out. This is like an umbrella made of cloth. Although this cloth has many holes, it still won't leak rain.
The secret thinking of handkerchief: lay the handkerchief flat under the faucet and turn on the faucet. Does water flow through the handkerchief? Material: 1 glasses, 1 handkerchief, 1 rubber band. Process: 1. Cover the cup with a handkerchief and tie it tightly with a rubber band. 2, 2, let the water rush on the handkerchief.
3.3. Turn off the tap after the water flows into the cup for about seven or eight minutes. 4, 4, cup mouth down, quickly turn the cup upside down.
5, description: 6, 1, when flushing from the top of the cup, water will flow into the cup through the handkerchief. 7.2. When the cup is turned upside down, water will not flow out due to atmospheric pressure.
8. Extension 9. If the cloth covered on the handkerchief is different (such as cotton cloth or towel or linen), what will happen to the water in and out? Thinking about the plastic mat that can't fall off: cover the cup filled with water with a mat. Will the cushion fall off when the cup mouth is facing down? Materials: two glasses, water and a plastic plate. Operation: 1. Fill the glass with water. 2. Cover the cup with a pad.
Hold the cup in one hand and the mat in the other. 4. Hold it by hand, turn the cup mouth upside down, and let the cup mouth face down.
Let go of the hand holding the pad gently, and the pad won't fall off. Note: The cushion covers the mouth of the cup filled with water, because the air pressure outside the cup is relatively high, and the cushion will not fall off.
Creation: What happens if there is not enough water in the cup or there is no plastic board? Please try it. Candles can't go out. Thinking: Blow out the burning candle hard, but it can't be extinguished. Do you know how to do it? Material: 1 candle, match, 1 funnel, 1 tablet operation: 1. Light candles and fix them on the flat.
2. Let the wide mouth of the funnel face the flame of the candle, and blow the flame forcefully from the small mouth of the funnel. 3. Let the small mouth of the funnel face the flame of the candle, and blow the flame forcefully from the big mouth of the funnel.
Explanation: 1 When blowing in this way, the flame will be inclined to the wide mouth end of the funnel and will not be easily blown out. If you blow from the wide mouth of the funnel, the candle will go out easily.
2. The blown gas gradually empties from the narrow mouth to the wide mouth, and the air pressure is weakened. At this time, the gas around the funnel wide mouth will flow into the funnel wide mouth because of the strong air pressure.
Therefore, the flame of the candle will also rush to the wide mouth of the funnel. Attention: Pay attention to the safety of candles when burning.
Candle Pump Thinking: Do you know how the pump pumps water? Materials: glass, candles, cardboard slightly larger than the glass mouth, plastic pipe, a little vaseline, matches and water. Half cup operation: 1. First, the plastic pipe is folded into the shape of a door frame, and one end passes through the cardboard. Then put two glasses on the table one by one. 3. Light the candle, fix it at the bottom of the left glass, and inject water into the right glass at the same time. 4. Put some vaseline on the glass mouth where the candle is placed, and then use it. 5. Water flows into the cup on the left from the right. Description: When the candle burns, there is oxygen in the left cup, and the air pressure in the bottle decreases. The pressure in the right cup makes the water flow to the left cup until the pressure on the water surface of the two cups is equal.
At that time, the water level in the left cup was higher than that in the right cup. Note: Pay attention to safety when lighting the candle and then fixing it at the bottom of the left glass. Be careful to burn your hand and blow the balloon in the bottle. I thought: Why don't you loosen the balloon mouth so that the balloon won't get smaller? Materials: large glass bottle, two straws: red and green, one balloon, air pump operation: 1, punch two holes in the bottle cap with a screwdriver in advance, and insert two straws in the holes: red and green. Tie a balloon on the red straw. 3. Cover the bottle cap on the bottle mouth. 4. Inflate the balloon at the red straw with an air pump. 5. Loosen the red straw and make it smaller immediately. 6. Inflate the balloon at the red straw with an air pump. 7. Quickly pinch the two nozzles of the red straw and the green straw. Loosen the red straw nozzle. Balloons don't get smaller. Explanation: When the red straw is released, the rubber film of the balloon shrinks.
But after the balloon is deflated, the air volume in other parts of the bottle becomes larger and the green tube is closed. In this way, the air pressure in the bottle will be reduced-even lower than that in the balloon. At this time, the balloon will not continue to shrink.
2. Interesting stories of physicists
The most famous physics anecdote about buoyancy.
The discovery of Archimedes principle (buoyancy principle)
In 245 BC, King Hennon gave the goldsmith a piece of gold to make a pure gold crown. Although the finished crown was as heavy as the previous gold, the king still suspected that the goldsmith had adulterated it. He ordered Archimedes to identify whether the crown was pure gold, but he was not allowed to destroy it.
This seems an impossible thing. In the public bathroom, Archimedes noticed his arm floating on the water. Vague thoughts flashed through his mind. He put his arm completely in the water, relaxed, and then his arm surfaced again.
He stood up from the bathtub, and the water level around the bathtub dropped; When I sat down again, the water level in the bathtub rose again.
He was lying in the bathtub, the water level became higher and he felt lighter. After he stood up, the water level dropped and he felt heavy. It must be the buoyancy of the water that makes him feel lighter.
He put stones and stones of almost the same size into the bathtub at the same time and immersed them in the water. The stone sank into the water, but he felt it lighter. He had to press down the block of wood and soak it in water. This shows that buoyancy is related to the displacement (volume) of the object, but not to the weight of the object. How heavy an object feels in water must be related to its density (the mass per unit volume of the object).
Archimedes found a solution to the king's problem here, and the key to the problem lies in density. If the crown contains other metals, its density will be different and the volume of the crown will be different under the same weight.
Putting the crown and the same weight of gold into water, it was found that the crown discharged more water than gold, indicating that the crown was adulterated.
From then on, Archimedes discovered the principle of buoyancy, that is, the buoyancy of water to an object is equal to the weight of boiling water discharged by the object.
3. Collect interesting physics stories
Kicking a stone doesn't hurt you, but it hurts you (interesting story of physics). In A.D. 19 18, there was a bully named Nanhu in Nantian Village, Hainan Province.
People, as the name implies, rely on wealth, run amok and do all kinds of evil, and the villagers are scared to death. One day, his 10-year-old son took several children to play outside the village. As soon as he left the village, his son hit a stone and broke his head, crying and running home, shouting "Dad! Dad! "Nanhu saw his son's face covered with blood, gnashed his teeth with anger and pointed at his son." Who hit you? " My son forgot everything when his father was around. Holding his father's hand in one hand, he walked outside the village, walked to the stone and said, "That's it."
Without thinking, Nan Hu kicked the stone. "Oh, my foot is broken!" "The villagers onlookers, everyone secretly cheered. There is a saying that "evil is rewarded with evil, and good is rewarded with good".
Thinking: Why did Nanhu kick a stone, but the stone didn't hurt, but his foot was broken? Where did the "water falling from the sky" come from (physics interesting story)? On August 3, Xiaoming installed air conditioning in his home. Sleep until dawn as soon as you sleep at night. As soon as he got up, he opened the curtains and looked out. Suddenly he saw the outer layer of the glass window, and there were many drops of water. Xiao Ming was surprised and shouted, "Grandpa, there is a lot of water on the glass window." Grandpa opened the door and came in. There is indeed a lot of water on the glass window. Grandpa secretly thought, why is there so much water on the outer layer of the glass window? Will there be any bad omen?
Grandpa left silently and went to a foreign village to find a witch. He told the witch that there was a lot of water on the glass window of his house. The witch said, "This is water falling from the sky. Your family is in big trouble." Grandpa said in fear, "What should I do? Can you help me avoid this disaster? "
The witch said, "Yes, but it will cost more than two thousand yuan." Grandpa quickly said, "OK, I'll ask my son for money."
So, grandpa hurried home, took Xiaoming to the unit where his father worked and found his father. He told his father that there was a lot of water on the glass window of his house and what the witch said. Dad laughed and told grandpa and Xiaoming the truth that "water crosses heaven", which made them suddenly realize. Thinking: What is the reason for "water falling from the sky"? Do you believe in science, or do you believe in the "superstitious" Mid-Autumn Festival custom (physical interest custom)? There is a traditional custom in my hometown. Every year on the fifteenth day of the eighth lunar month, when the moon is in the middle, every unmarried girl of school age will bring a bowl full of water and put it in the moonlight. Hold a new sewing needle horizontally and gently put it on the water. Whose sewing needle was left on the water in the moonlight? It means that whoever finds the right husband within this year, whose sewing needle has a different shadow size in the water, means that whoever finds the right husband within this year will definitely come back next year.
Thinking: How much force does the sewing needle receive when it stays on the water? What forces are they? Do you believe that you can find Mr. Right with the same shadow size of sewing needle in the water? .
4. What are the interesting physics tips in life?
1. Friction when people walk. The timekeeper at the end of the long-distance race saw the smoke from the starting gun and began to time. See the lightning first, then hear the thunder. 4. The glass with water is not easy to separate. 5. Hot water emits white smoke. 6. Rainbow 7. A layer of "ice flowers" appears on the window in winter. 8.b ultrasound 9. Water boiling phenomenon 1 1. Health ball Machine 13. Light bulb 14. Rumor "It's cold before frost and cold after snow" 15. Cooking in pressure cooker is fast 16. Blow it into a hot soup bowl and it's cold 17. It's cool when you blow the electric fan 18. It was very cold after swimming ashore 19. Breathe into your hand to keep warm. There is always a layer of dust on the TV. ) In summer, the weather is cool. On the bottle. (2) The frozen flowers on the windows in winter are condensed by water vapor. (3) Wake up in the morning and see fog, which is the phenomenon of water vapor liquefaction in the air. (4) Frozen clothes will dry in winter, which is the sublimation of ice. (5) The boiling point of water is different at different time and place, which is the difference of atmospheric pressure. (6) Water can only boil jiaozi white. And oil can fry jiaozi: the boiling point of oil is higher than that of water. (7) Mirage phenomenon: light is deflected due to uneven atmosphere. (8) Inverted pinhole: light travels in a straight line. (9) Plane mirror can image: light is reflected. (10) Chopsticks that reach into the water are curved: the light is oblique. Seven colors: dispersion of light. (12) solar eclipse: the straight-line propagation of light. (14) There is no sound on the moon: sound propagation needs a medium. (13) A convex lens can image: light refracts. (14) There is no sound on the moon: sound propagation needs a medium.
5. How to make physical handwritten newspaper
Handwritten newspaper is another form of newspaper that can be circulated, watched and posted.
In school, handwritten newspaper is a good activity form in the second class. Like the blackboard newspaper, handwritten newspaper is also a mass propaganda tool. First, the overall concept of handwritten newspaper How to make a handwritten newspaper in a limited space, which not only accommodates certain knowledge content, but also has a wonderful and beautiful layout? It's not just a question of skill. For an editor, assembly, editing, typesetting, illustration and writing are a creative process of concentration and hands-on, which is a comprehensive embodiment of his cultural accomplishment, life interest, mental outlook and artistic accomplishment.
This is undoubtedly a vast world for a student to develop his personality and talent. To run a handwritten newspaper, in general, we must first establish the theme.
The layout of the first issue of the handwritten newspaper is very limited. To be different, it is necessary to highlight a theme in content, so that the theme is prominent and colorful. Layout and beautification design should also focus on the theme, determine the seriousness and vividness of the form according to the theme and the content of the article, and achieve the unity of form and content.
Second, the layout design of handwritten newspaper, the general requirements of handwritten newspaper layout design are: distinctive theme, novelty and beauty. 1. Layout division First divide the layout into two pieces, and each piece can be further divided into several pieces.
When dividing the blocks of an article, we should have the beauty of horizontal, vertical, large and small, diverse and symmetrical. The header should be placed in a prominent position.
2. If the block layout does not conform to the original division, it is necessary to adjust the block layout; If you can't arrange the article, you can use the form of transfer and transcription to distinguish it from the adjacent article blocks with font size, color and lace. 3. Decorative design should not only design and draw the header according to the content, but also consider the title of each article as a whole, and determine the font, font size, color and vertical and horizontal position of each article title according to the primary and secondary position of the article.
The content of the article is mainly horizontal, and the line spacing is greater than the word spacing. Some motifs, illustrations, lace and tail flowers are inserted between articles, which play a decorative and lively role. Third, the writing of handwritten newspaper 1. The writing of the title is the main or important article title, and the words should be eye-catching and solemn; Entertainment news or minor articles can be written in a light and lively font.
The titles of articles in the same issue or edition should also be written in different fonts. The font of the title should be larger than the content of the article, and the color should be emphasized.
Most of the titles are artistic characters, especially regular script, running script, Wei script and official script. 2. The writing font of the text should be clear, beautiful and generous, the lines should be neat, and the font should not be too small to avoid scribbling and typos.
(It is best to write with a pen) Fourth, the decoration and beautification of handwritten newspapers mainly use artistic means such as color and painting to make up for the monotony of words and give people vivid images, beautiful and harmonious beauty and enlightenment. The content includes header, inscription, illustration, lace, tail flower and color application.
1. Title It is a sign of handwritten newspaper, which consists of patterns or pictures and the name of the publication. Literally, it consists of title name, date and editing unit.
2. The title flower is the decoration of the title or switch of the article, which is generally shaded by suggestive pictures or patterns. 3. Illustration can draw a picture that can explain a plot according to the content of the article, which is closely related to the content of the article; You can also use patterns that have nothing to do with the content of the article, such as flowers and birds, mountains and rivers, etc. These are purely for beautification.
4. Lace should not be too much, too big or too thick, otherwise it will pretend to be the owner. Lace can beautify the layout, separate articles and make it easy to read.
Tail flowers are pictures or patterns decorated at the back of an article. If an article is copied and left blank, you can draw a tail flower, which can enrich the layout and increase the aesthetic feeling.
6. Colors should generally be concise, bright and elegant, and should not be over-rendered and messy. Generally speaking, the tone of the text should be simple and steady; Titles, lace, illustrations, etc. You can use brighter colors.
Only in this way can the shade be appropriate and the effect can be enhanced. References:
/2/0804/ 1 148。
6. Handwritten newspapers with entities for information
Think about the magic toothpicks in several easy-to-operate experiments: Will the toothpicks in the water swim with the sugar cubes in the water or with the soap in the water? Materials: toothpick, a basin of water, soap, sugar cube operation: 1. Carefully put the toothpick on the water.
2. Put the sugar cubes in the basin, away from the toothpicks. The toothpick will move towards the sugar cube.
Change a basin of water, carefully put the toothpick on the water, and now put the soap in the basin near the toothpick. Toothpicks will stay away from soap.
Note: When you put the cube in the center of the basin, it will absorb some water, so there will be a small water flow in the direction of the cube, and the toothpick will move with the water flow. However, when you put soap into the basin, the surface tension at the edge of the basin is strong, so you will pull the toothpick out.
Creation: Please try. If sugar and soap were replaced by other substances, in which direction would the toothpick swim to the perforated paper to hold water? Why can perforated paper hold water? Material: a bottle, a pin, a piece of paper, a full cup of colored water. Operation: 1. Fill the empty bottle with colored water. Punch many holes in the white paper with a pin.
3. Cover the bottle mouth with perforated paper. 4. Hold the paper with your hand, turn the bottle upside down, and make the bottle mouth face down.
Gently remove your hand, the paper will cover the bottle mouth and the water will not flow out of the hole. Description: Tissue paper can hold up the water in the bottle because atmospheric pressure acts on the paper, resulting in upward tension.
Water will not leak out from the small holes because water has surface tension, and water forms a water film on the surface of paper, so water will not leak out. This is like an umbrella made of cloth. Although this cloth has many holes, it still won't leak rain.
The secret thinking of handkerchief: lay the handkerchief flat under the faucet and turn on the faucet. Does water flow through the handkerchief? Material: 1 glasses, 1 handkerchief, 1 rubber band. Process: 1. Cover the cup with a handkerchief and tie it tightly with a rubber band. 2, 2, let the water rush on the handkerchief.
3.3. Turn off the tap after the water flows into the cup for about seven or eight minutes. 4, 4, cup mouth down, quickly turn the cup upside down.
5, description: 6, 1, when flushing from the top of the cup, water will flow into the cup through the handkerchief. 7.2. When the cup is turned upside down, water will not flow out due to atmospheric pressure.
8. Extension 9. If the cloth covered on the handkerchief is different (such as cotton cloth or towel or linen), what will happen to the water in and out? Thinking about the plastic mat that can't fall off: cover the cup filled with water with a mat. Will the cushion fall off when the cup mouth is facing down? Materials: two glasses, water and a plastic plate. Operation: 1. Fill the glass with water. 2. Cover the cup with a pad.
Hold the cup in one hand and the mat in the other. 4. Hold it by hand, turn the cup mouth upside down, and let the cup mouth face down.
Let go of the hand holding the pad gently, and the pad won't fall off. Note: The cushion covers the mouth of the cup filled with water, because the air pressure outside the cup is relatively high, and the cushion will not fall off.
Creation: What happens if there is not enough water in the cup or there is no plastic board? Please try it. Candles can't go out. Thinking: Blow out the burning candle hard, but it can't be extinguished. Do you know how to do it? Material: 1 candle, match, 1 funnel, 1 tablet operation: 1. Light candles and fix them on the flat.
2. Let the wide mouth of the funnel face the flame of the candle, and blow the flame forcefully from the small mouth of the funnel. 3. Let the small mouth of the funnel face the flame of the candle, and blow the flame forcefully from the big mouth of the funnel.
Explanation: 1 When blowing in this way, the flame will be inclined to the wide mouth end of the funnel and will not be easily blown out. If you blow from the wide mouth of the funnel, the candle will go out easily.
2. The blown gas gradually empties from the narrow mouth to the wide mouth, and the air pressure is weakened. At this time, the gas around the funnel wide mouth will flow into the funnel wide mouth because of the strong air pressure.
Therefore, the flame of the candle will also rush to the wide mouth of the funnel. Attention: Pay attention to the safety of candles when burning.
Candle Pump Thinking: Do you know how the pump pumps water? Materials: glass, candles, cardboard slightly larger than the glass mouth, plastic pipe, a little vaseline, matches and water. Half cup operation: 1. First, the plastic pipe is folded into the shape of a door frame, and one end passes through the cardboard. Then put two glasses on the table one by one. 3. Light the candle, fix it at the bottom of the left glass, and inject water into the right glass at the same time. 4. Put some vaseline on the glass mouth where the candle is placed, and then use it. 5. Water flows into the cup on the left from the right. Description: When the candle burns, there is oxygen in the left cup, and the air pressure in the bottle decreases. The pressure in the right cup makes the water flow to the left cup until the pressure on the water surface of the two cups is equal.
At that time, the water level in the left cup was higher than that in the right cup. Note: Pay attention to safety when lighting the candle and then fixing it at the bottom of the left glass. Be careful to burn your hand and blow the balloon in the bottle. I thought: Why don't you loosen the balloon mouth so that the balloon won't get smaller? Materials: large glass bottle, two straws: red and green, one balloon, air pump operation: 1, punch two holes in the bottle cap with a screwdriver in advance, and insert two straws in the holes: red and green. Tie a balloon on the red straw. 3. Cover the bottle cap on the bottle mouth. 4. Inflate the balloon at the red straw with an air pump. 5. Loosen the red straw and make it smaller immediately. 6. Inflate the balloon at the red straw with an air pump. 7. Quickly pinch the two nozzles of the red straw and the green straw. Loosen the red straw nozzle. Balloons don't get smaller. Explanation: When the red straw is released, the rubber film of the balloon shrinks.
But after the balloon is deflated, the air volume in other parts of the bottle becomes larger and the green tube is closed. In this way, the air pressure in the bottle will be reduced-even lower than that in the balloon. At this time, the balloon will not continue to shrink.
7. Humorous stories about physics
I found a lot of lightning rods and babies for you. One day, American physicist Franklin invited people to visit his new invention.
A rich woman asked, "But what's the use?" Franklin replied, "madam, what's the use of a newborn baby?" Edison has a summer house, and he likes to accompany tourists here. In one place, tourists have to go through a winding pole, and it takes a lot of effort to turn it around.
A guest asked Edison why there was such a heavy winding rod here, because there were some new inventions around. Edison replied, "Oh, you see, everyone who goes around the pole pumps 8 gallons of water into the water tank on my roof."
The phonograph and hearing aid Edison applied for 1093 invention patents all his life, among which the invention of the phonograph made him most proud. When someone asked him why he didn't invent hearing AIDS, he said, "How much of the sound you heard in the past 24 hours must be heard?" "He went on to say," If a person has to shout loudly, he will never tell a lie. "
The success or failure of theory and nationality In the 1930s, Einstein said in a speech at the University of Paris: "If my theory of relativity is confirmed, Germany will declare me a German and France will call me a citizen of the world. However, if my theory proves to be wrong, then France will emphasize that I am German and Germany will say that I am Jewish. "
Please send me the box. 1895, the famous German physicist wilhelm konrad rontgen discovered a special kind of ray, named Roentgen ray, which is what we often call "X" ray, and caused a sensation throughout Germany. Soon, Roentgen received a letter and mailed it to him for an X-ray. Roentgen said humorously in his reply, "I don't have X-rays in stock at present, and mailing X-rays is a very troublesome thing, so I can't order them.
Tell you what, please send me the box! On the day when Einstein was taken to the office of Princeton University, someone asked him what tools he needed. "I see, a desk or table, a chair and some paper and pencils will do.
Oh, yes, and a big wastebasket. "He said.
"Why is it big?" "So I can throw all my mistakes in." German physicist Kirchhoff once pointed out in a lecture that the black line seen from the solar spectrum proves the existence of gold on the sun.
A banker who came to attend the class sneered at Kirchhoff and said, "What's the use of such gold if you can't get it from the sun!" Later, Kirchhoff won the gold medal for his discovery in spectral analysis. He showed the medal to the banker and said, "Look, I finally got gold from the sun." On one occasion, Queen Anna visited the famous Greenwich Observatory. When she learned that James Braldey, director of astronomy and astronomers, had a low salary, she said that she would raise his salary.
However, Bradelet begged her not to do so. He said: "If this position can bring a lot of income, then it will not be an astronomer who will come to this position in the future."
Considering that Edison is still working in the laboratory at the age of 75, it is too late. A reporter asked him, "Mr. Edison, when are you going to retire?" Edison pretended to be embarrassed and said, "Oh, no, I haven't had time to think about it until now!" " "The success or failure of theory and nationality In the 1930s, Einstein said in a speech at the University of Paris:" If my theory of relativity is confirmed, Germany will declare me a German and France will call me a citizen of the world.
However, if my theory is proved to be wrong, then France will emphasize that I am German and Germany will say that I am Jewish. Clever metaphor One day, someone asked the British optical authority W·S· Franklin: "Why does an object look upside down on our visual film, but we don't feel that the object is upside down?" Franklin thought for a moment and replied, "When you hear a baby crying in both ears at the same time, why can you be sure at once that it's not twins crying?" Inertia example The physics teacher is talking about "inertia", and the next student is talking about it.
The teacher gave him a hint, but he went his own way. Teacher: "What did I say just now?" Student: "inertia."
Teacher: "Please give an example." Student: "I was talking below just now. In spite of your hints, I can't stop at once. This is inertia. "
I was outside, and a farmer invited engineers, physicists and mathematicians to enclose the largest area with the least fences. The engineer fenced a circle and declared that it was the best design.
The physicist stretched the fence into a long straight line and thought it was big enough to enclose half the earth. The mathematician gave them a big laugh.
He surrounded himself with several fences and then said, "I'm outside now." Liar richard feynman is an American physicist and the winner of 1965 Nobel Prize in Physics.
After the atomic bomb was developed, Feynman went to a university as a professor. He was still very young at that time.
At a dance, he danced with a girl student. The girl asked him what grade he was in, and he said I was a professor.
The girl said, professor? You also made an atomic bomb, right? Feynman said: Yes, I built an atomic bomb. The girl left a "liar" and tossed her head.
Einstein and Chaplin's famous scientist Einstein spoke highly of Chaplin's films. On one occasion, he wrote in a letter to Chaplin: "Your film Modern Times can be understood by everyone in the world.
You will be a great man. Einstein. "
Chaplin wrote in his reply: "I admire you even more. No one in the world can understand your theory of relativity, but you have become a great man.
Chaplin. Roentgen ray The famous German physicist wilhelm konrad rontgen (1845~ 1923) discovered a special kind of ray in 1895, and named it Roentgen ray, which is what we often call "X" ray, which caused a sensation in Germany.
Soon, Roentgen received a letter and mailed it to him for an X-ray. Roentgen said humorously in his reply, "I don't have X-rays in stock at present, and mailing X-rays is a very troublesome thing, so I can't order them. Tell you what, please send me the box.