In the early spring of a certain year, the author was transferred to a working group in the countryside and visited everywhere. I only saw two manual workshops, one for pasting paper boxes and the other for producing rice mill parts, and both of them were in a state of shutdown or semi-shutdown, and no equipment or employees were seen in the dilapidated factory. However, according to the statistical report, the total industrial output value of this township is more than 20 million yuan, which is surprising! After understanding, it is said that the work done by township tofu workshops and sewing machines in every household is counted. The author is silly and still doesn't understand: can tofu shops and villagers' sewing machines also be regarded as the total industrial output value?
2. Once, an art festival was held once a year in a certain place, which was called "putting up a stage for culture and singing opera economically". The cities and counties they belong to should send local famous products and local products to exhibitions and exhibitions, and banners should be hung from the top of the fifth and sixth floors to the bottom of the building. During the period, singers, stars and celebrities were invited to perform, but the appearance fee for singing a few songs ranged from tens of thousands to hundreds of thousands. Of course, this money is to be distributed to cities and counties, and cities and counties are to be distributed to participating enterprises.
An art festival unit sent the author to participate, and my colleagues who participated before the trip explained that the number of contracts signed and the turnover of the day should be reported at 4 pm every day. I said, how much can that be? ! Colleagues replied that the contracts signed by enterprises in this system usually count as closed if they are not signed but interested. I discussed with the author how many figures to quote for the three-day art festival every day. I arrived at the meeting place on time at 4 pm the first day. The director of the county government office asked each system to report the figures of the day. It's my turn. I signed the contract with them according to the figures discussed at home in advance, and the transaction amount was ××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××× He wants you to exaggerate the report, because tomorrow morning, on the huge billboard in the downtown square, the number of contracts signed and the transaction amount of each city and county on the first day are written out. We are not much worse than our brother cities and counties. After the three-day art festival ended, on the morning of the fourth day, the headline of the local newspaper read, "×××××× Art Festival" was a great victory, with a total contract of ×××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××× Later, more young cadres enlightened the author, what is "larded"? It is black-hearted and thick-skinned. You have to practice until your face stops jumping when you tell a lie.
Fortunately, a few years later, the festival finally ended. Perhaps the superiors realized that this kind of art festival wasted people's money and became a mere formality; Maybe it's because some enterprises hold a national order meeting every year in this industry, so boycott it.
> several math stories
1. The symbols "+"and "-"were first used by a German 500 years ago. At that time, they didn't mean "plus" or "minus". It was not until more than a hundred years ago that three answers were officially used to mean "addition" and "subtraction".
2. "Tangram" is a kind of tangram in ancient China, which was made up of seven pieces and made into a large square thin plate, with various patterns. Later, it spread abroad and was called "Tangtu". "Tangram" has spread to today and become a kind of intellectual toy that people like.
It is said that as early as 4,000 to 5,000 years ago, our ancestors used a dripping instrument to keep time. This instrument is called lettering.
More than 300 years ago, a British mathematician first used the multiplication symbol "×". Because multiplication is a special addition, he marked the plus sign obliquely.
In 46 BC, Julius Caesar, commander-in-chief of Rome, designated the calendar. Because he was born in July, in order to show his greatness, he decided to change July to "Julian month", and all single months were stipulated as 3 1 day, and bimonthly was 30 days. In this way, there is one more day in a year. February was the month when prisoners were executed in ancient Rome. In order to reduce the number of people executed, 1 day was reduced in February to 29 days.
6. Xiao Fang is a carpenter, but he is arrogant. One day, the master asked him, "The table has four corners. I cut off one, how many are left? " Xiao Fang said 4- 1=3, three. The master told him that there were five people.
"Three" Math Stories
1, Thales saw people reading the notice and went up to have a look. The plaintiff said that Pharaoh wanted the smartest person in the world to measure the height of the pyramid, so he asked Pharaoh.
Pharaoh asked Thales what tools he used to measure the pyramids. Thales said he only used a stick and a ruler. He put the stick next to the pyramid. When the shadow of the stick was as long as the stick, he measured the length of the shadow of the pyramid and half the length of the bottom of the pyramid.
Add these two lengths to get the height of the pyramid. Thales is really the smartest man in the world. He can easily measure the height of the pyramid without climbing to the top.
2. During the Warring States Period, Qi Weiwang and Tian Ji raced, and Qi Weiwang and Tian Ji each had three good horses: getting on, winning and dismounting. The race is divided into three times, and thousands of dollars are bet on each horse race. Because the horsepower of the two horses is almost the same, and Qi Weiwang's horse is better than Tian Ji's, most people think that Tian Ji will lose.
However, Tian Ji took the advice of his disciple Sun Bin (a famous strategist) and dismounted Qi Weiwang's horse, Ma Zhong of Qi Weiwang and Qi Weiwang. As a result, Tian Ji beat Qi Weiwang 2-/kloc-0-and won a lot of money. This is an example of China's ancient substitution game theory to solve problems.
3. The animal school holds a children's song competition, with the elephant teacher as the referee. The little monkey raised his hand first and began to recite: "I can calculate carry addition, and the digits can only be added if they are aligned." The number of digits should be aligned with the number of digits. When the number of digits exceeds ten, the number of digits should be advanced to ten. Add ten and one to count quickly and accurately. "
As soon as the little monkey finished speaking, the puppy began to recite again: "abdication and subtraction are not difficult, just align the numbers." If the single digits are small enough, ten people can borrow one. If ten people return, one will be ten, and if they return, one will be missing. How to reduce ten digits, ten digits will be reduced again and again. "
Everyone applauded their wonderful performance. Teacher Elephant said, "Their nursery rhymes make us understand that both carry addition and abdication subtraction should win the championship, ok?" Everyone agrees and applauds them.
4. Meteorologist Lorenz put forward a paper entitled "Can a butterfly flap its wings to cause a tornado in a classified group", and discussed that if the initial conditions of a system are a little worse, the result will be very unstable. He called this phenomenon "the butterfly effect".
Just like we roll the dice twice, no matter how deliberately we roll, the physical phenomena and points thrown twice are not necessarily the same.
This story happened in the winter of 196 1 2008. He operated the meteorological computer in the office as usual. Usually, he only needs to input meteorological data such as temperature, humidity and air pressure, and the computer will calculate the possible meteorological data at the next moment according to the built-in three differential equations, thus simulating the meteorological change map.
5. Archimedes has many stories, the most famous of which is the story of discovering Archimedes' principle in the bath.
The king made a golden crown. He suspected that the craftsman had stolen some gold with silver, so he asked Archimedes to identify whether it was made of pure gold and not to damage the crown.
Archimedes thought hard about the crown all day. One day, Archimedes went to the bathroom to take a bath. He went into the bath tub. When he immersed himself in the bath bucket, some water overflowed from the side of the bucket. Archimedes saw this phenomenon and crackled in his mind. "I found it!"
Archimedes put an equal weight gold nugget and a silver nugget into a container filled with water, and found that the silver nugget discharged much more water. So Archimedes took a piece of gold equal to the weight of the crown and put it in a container filled with water to measure the displacement.
Then put the crown in a container filled with water to see if the amount of water discharged is the same, and the problem will be solved. With further research, Archimedes principle, the most important cornerstone of fluid mechanics, was born.
Short collection of digital stories
1, Mathematical Story-Change
A customer of a crutch shop bought a crutch made in 30 yuan. He took out a ticket for 50 yuan and asked for change.
Just as there was no change in the store, the shopkeeper went to the neighbor's house to change the ticket for 50 yuan and gave the customer 20 yuan's change.
Just after the customer left, the neighbors came running in a panic and said that this ticket for 50 yuan was fake. The shopkeeper had to compensate his neighbor 50 yuan. Then I went out to chase the customer, caught him and said, "You liar, I paid 50 yuan, neighbor, and I gave you 20 yuan. You took a crutch, and you have to compensate me 100 yuan. "
The customer said, "The cost of a walking stick is 30 Yuan You left when your neighbor gave you change, so I only took your 70 yuan."
Please calculate, how much is the real loss of the rattan shop? I would like to add here that the cost of crutches is 20 yuan. How much money will the customer get if he cheats successfully?
2. Story: The monkey catches the hat.
A group of monkeys are playing by the well. A gust of wind blew a monkey's hat into the well. He called 18' s friends and fished for his hats one by one from the pine trees by the well. Four monkeys don't climb trees, so they go for hats. Q: How many monkeys got their hats from the well under the tree?
Wu's interesting math story (50 words
1, Buffon test
One day, French mathematician Buffon invited many friends to his home and did an experiment. Buffon spread a big piece of white paper on the desk, which was covered with parallel lines with equal distance. He also took out many small needles of equal length, the length of which was half that of parallel lines. Buffon said, "Please feel free to leave these small needles on this piece of white paper!" " The guests did as he said.
Buffon's statistics show that everyone throws 22 12 times, in which the small needle intersects the parallel line on the paper 704 times, and 2210 ≈ 704 ≈ 3.142. full text
What digital stories does Lu have?
1, one short step makes an everlasting regret.
1 On August 23, 967, the Soviet Union1spacecraft suddenly had a vicious accident when it returned to the atmosphere-the parachute could not be opened. After studying, the Soviet Union decided to broadcast the accident live to the whole country. When the announcer of the TV station announced in a heavy tone that the spaceship would crash in two hours.
The audience will witness the news of the death of astronaut Vladimir Komarov, and the whole country will be immediately shocked and people will be immersed in great sorrow. On TV, the audience saw the calm image of astronaut komarov. He smiled and told his daughter: "When studying, you should take every decimal point seriously.
What happened on the Soyuz 1 today was because a decimal point was ignored in the ground inspection ... "Even a decimal point error will lead to a tragic farewell that can never be remedied.
2. A mathematician triggered by a story
Chen Jingrun, a famous mathematician, made great contributions to overcoming Goldbach's conjecture and founded the famous "Chen Theorem", so many people affectionately called him "the prince of mathematics". But who would have thought that his achievement originated from a story? One day, Teacher Shen Yuan told us a story in a math class.
"A Frenchman discovered an interesting phenomenon 200 years ago: 6=3+3, 8=5+3, 10=5+5, 12=5+7, 28=5+23,100 =/kloc. Every even number greater than 4 can be expressed as the sum of two odd numbers. Because this conclusion has not been proved, it is still a guess. Euler said: Although I can't prove it, I am sure this conclusion is correct.
It is like a beautiful light ring, shining with dazzling brilliance in front of us not far away. ..... "Chen Jingrun stare eyes, absorbed. From then on, Chen Jingrun became interested in this wonderful question. In his spare time, he likes going to the library. He not only read the counseling books in middle schools, but also eagerly read the textbooks of mathematics and physics courses in these universities. Therefore, he got the nickname "bookworm".
Interest is the first teacher. It is such a mathematical story that aroused Chen Jingrun's interest and his diligence and made him a great mathematician.
3. Tang Priest and his disciples picked peaches.
One day, the Tang Priest told his disciples Wukong, Bajie and Friar Sand to go to Huaguoshan to pick peaches. Before long, the three disciples returned happily after picking peaches. Tang Priest and his disciples asked: How many peaches did each of you pick? Bajie said with a silly smile, Master, let me test you. Each of us took the same amount of money. There are less than 65,438+000 peaches in my basket. If we count three peaches, there are 1 peach left in the end.
Do the math. How many did each of us choose? Friar Sand said mysteriously, Master, I will test you, too. If there are four peaches in my basket, there is 1 left in the end. Do the math. How many did each of us choose? Wukong smiled and said, Master, I'll test you, too. If there are five peaches in my basket, there is 1 left in the end. Do the math. How many shall we each choose?
4. The story of "0"
Roman numerals are symbols representing numbers, which are combined to represent different numbers according to certain rules. When using this number, the number "0" is not needed. At that time, a scholar of the Roman Empire discovered the symbol "0" from Indian notation. He found it extremely convenient to use "0" for mathematical operations.
I also introduced the "0" method used by Indians. The Pope knew then. The Pope was very angry. He rebuked that the sacred number was created by God, and there was no "0" monster in the number created by God. So he ordered the scholar to be arrested, and his ten fingers were tightly clamped with a clamp, so that his hand was disabled and he could no longer write with a pen.
In this way, "0" was banned by the ignorant and cruel Pope. However, although the use of "0" is forbidden, Roman mathematicians still use "0" secretly in mathematical research regardless of the ban, and still make a lot of mathematical contributions with "0". Later, "0" was finally widely used in Europe, but Roman numerals were gradually eliminated.
5. Mathematicians' "forgetfulness"
On the 60th birthday of Professor Wu Wenjun, a mathematician in China, as usual, he got up at dawn and buried himself in calculations and formulas all day. Someone specially chose to visit at home this evening. After exchanging pleasantries, they explained their purpose: "I heard from your wife that today is your sixtieth birthday, and I came to congratulate you." Wu Wenjun seemed to hear a message and suddenly said, "Oh, really? I forgot. "
The bearer was secretly surprised and thought, how can a mathematician not even remember his birthday because his mind is full of numbers? In fact, Wu Wenjun has a good memory for dates. Nearly sixty years old, he conquered a difficult problem for the first time-"machine certificate". This is to change the way mathematicians work with "a pen, a piece of paper, a head".
Using electronic computer to realize mathematical proof gives mathematicians more time to engage in creative work. He clearly remembers the date when the electronic computer was installed and the date when more than 300 "instruction" programs were compiled for the computer.
The Mathematical Story of Qi (the shortest)
1. During the Warring States Period, Qi Weiwang and Tian Ji raced, and Qi Weiwang and Tian Ji each had three good horses: mounted, won and dismounted. The race is divided into three times, and thousands of dollars are bet on horse racing. Because the horsepower of the two horses is almost the same, and Qi Weiwang's horse is better than Tian Ji's, most people think that Tian Ji will lose.
However, Tian Ji took Sun Bin's advice and dismounted Qi Weiwang's horse, Ma Zhong of Qi Weiwang and Qi Weiwang's horse. As a result, Tian Ji beat Qi Weiwang 2-/kloc-0-and got a daughter.
The king made a golden crown. He suspected that the craftsman had stolen some gold with silver, so he asked Archimedes to identify whether it was made of pure gold and could not damage the crown. Archimedes thought hard about the crown all day. One day, Archimedes went to the bathroom to take a bath. He went into the bath tub. When he immersed himself in the bath bucket, some water overflowed from the side of the bucket. Archimedes saw this phenomenon and crackled in his mind.
Archimedes put an equal weight gold nugget and a silver nugget into a container filled with water, and found that the silver nugget discharged much more water. So Archimedes took a gold nugget with the same weight as the crown and put it in a container filled with water to measure the displacement; Then put the crown in a container filled with water to see if the amount of water discharged is the same, and the problem will be solved.
3. When Gauss was still in the second grade of primary school, one day his math teacher wanted to take time out of class to deal with some personal affairs, so he planned to give the students a difficult problem to practice. His topic is:1+2+3+4+5+6+7+8+9+10 =?
Because addition has just been taught, the teacher thinks it will take a long time for students to solve this problem. He can also take this opportunity to deal with unfinished business. But in the blink of an eye, Gauss had stopped writing and sat there doing nothing. The teacher saw it and called Gauss angrily.
But Gauss said he had figured out the answer, which was 55. The teacher was startled and asked how Gauss worked it out. Gauss replied, "I just found out that the sum of 1 and 10 is the sum of1,2 and 9,1,3 and 8,1/kloc-0. And because11+1+11+11= 55, that's how I worked it out. "
4. The beehive is a strictly hexagonal cylinder, with a flat hexagonal opening at one end and a closed hexagonal diamond bottom at the other end, which consists of three identical diamonds. The rhombic obtuse angle of the chassis is 109 degrees 28 minutes, and all acute angles are 70 degrees 32 minutes, which is both firm and material-saving. The honeycomb wall thickness is 0.073 mm, and the error is very small.
5. Red-crowned cranes always move in groups and form a herringbone. The angle of the herringbone is 1 10 degrees. More accurate calculation also shows that half of the herringbone angle, that is, the angle between each side and the direction of the crane group, is 54 degrees, 44 minutes and 8 seconds. The angle of the diamond crystal is exactly 54 degrees, 44 minutes and 8 seconds.
Give a few simple math stories.
1, Mathematical Story-Change
A customer of a crutch shop bought a crutch made in 30 yuan. He took out a ticket for 50 yuan and asked for change.
Just as there was no change in the store, the shopkeeper went to the neighbor's house to change the ticket for 50 yuan and gave the customer 20 yuan's change.
Just after the customer left, the neighbors came running in a panic and said that this ticket for 50 yuan was fake. The shopkeeper had to compensate his neighbor 50 yuan. Then I went out to chase the customer, caught him and said, "You liar, I paid 50 yuan, neighbor, and I gave you 20 yuan. You took a crutch, and you have to compensate me 100 yuan. "
The customer said, "The cost of a walking stick is 30 Yuan You left when your neighbor gave you change, so I only took your 70 yuan."
Please calculate, how much is the real loss of the rattan shop? I would like to add here that the cost of crutches is 20 yuan. How much money will the customer get if he cheats successfully?
2. Story: The monkey catches the hat.
A group of monkeys are playing by the well. A gust of wind blew a monkey's hat into the well. He called 18' s friends and fished for his hats one by one from the pine trees by the well. Four monkeys don't climb trees, so they go for hats. Q: How many monkeys got their hats from the well under the tree?
3. Story: When did the snail climb the well?
A snail accidentally fell into a dry well, and it lay down at the bottom of the well and began to cry. A toad came over and said angrily to the snail, "Stop crying, little brother, it's no use crying. This shaft wall is high and slippery, so you can only live here if you fall here. " I have lived here for many years. The snail looked at the old and ugly toad and thought, "What a beautiful world outside the well! I can never live in a dark and cold well like it. " The snail said to the toad, "Uncle toad, I can't live here. I have to climb out. How deep is this well? " "Ha ha ha ..... it's a joke, this well 10 meters deep, you are so young. How can such a heavy shell climb out? " "I am not afraid of suffering, not afraid of being tired. I can always climb out after a while every day! " The next day, the snail was full and began to climb along the wall. It keeps crawling and crawling. At night, it finally climbed 5 meters. The snail was very happy and thought, "At this rate, I can climb out tomorrow night." Thinking about it, I fell asleep unconsciously. In the morning, the snail was awakened by a purr. At first glance, it turned out that Uncle Tu was still sleeping. He was surprised: "Why am I so close to the bottom of the well?" It turned out that this snail fell asleep and slipped down 4 meters from the well wall. The snail sighed, gritted his teeth and began to climb again. At night, it climbed up another 5 meters, but at night, the snail fell down another 4 meters. In this way, it climbed, climbed and slipped, and finally the strong snail climbed onto the well platform. Clever boy, can you guess how many days it took the snail to climb the drilling platform?
Hope to adopt
The encyclopedia of mathematical short stories in Nine is the shortest.
1. In 46 BC, Julius Caesar, commander-in-chief of Rome, specified the calendar. Because he was born in July, in order to show his greatness, he decided to change July to "Julian month", and all single months were stipulated as 3 1 day, and bimonthly was 30 days. In this way, there is one more day in a year. February was the month when prisoners were executed in ancient Rome. In order to reduce the number of people executed, 1 day was reduced in February to 29 days.
Augustus, Caesar's heir, was born in August. Following Caesar's practice, he added 1 day as "August", changed 10 and1February to 3 1 day, and changed September 1 1 month to 30 days. There are 1 day in the whole year, and he has reduced 1 day since February, so February has become 28 days, and there are only 29 days in leap years.
In this way, there will be a big month in a single month before July, and a big month in two months after July, February 28.
More than 300 years ago, a British mathematician first used the multiplication symbol "×". Because multiplication is a special addition, he marked the plus sign obliquely.
It is said that as early as 4,000 to 5,000 years ago, our ancestors used a drip instrument to measure time. This instrument is called lettering.
"Tangram" is a kind of ancient tangram in China, which is made up of seven pieces into a big square with various patterns. Later, it spread abroad and was called "Tangtu". "Tangram" has spread to today and become a kind of intellectual toy that people like.
The symbols "+"and "-"were first used by a German 500 years ago. At that time, they didn't mean "plus" or "minus". It was not until more than 300 years ago that it was officially used to mean "addition" and "subtraction".
"Pick up" the short story generated by numbers
Usually, we call 1, 2,3,4 ... 9,0 "Arabic numerals". In fact, these figures were not created by Arabs, but originated in ancient India. But why do people call it "Arabic numerals"? It is said that as early as the 7th century AD, Arabs gradually conquered other peoples around them and established the Great Empire of Sarrasin, which started in India and spread westward to North Africa and Spain. Later, the Great Empire was divided into two countries, East and West. Because the monarchs of both countries attach importance to culture and art, the capitals of both countries are very prosperous, and Baghdad, the eastern capital, is superior. In this way, Greek culture from the west and Indian culture from the east are gathered here. Arabs understood and digested these two cultures and formed a new Arab culture. Around 750 AD, an Indian astronomer visited the palace in Baghdad and presented the astronomical watch made in India with him to the king at that time. Indian numbers are 1, 2, 3, 4 ... and Indian calculation methods. It seems that it was introduced to Arabs at this time. Because Indian numbers and calculation methods are simple and convenient, they were quickly accepted by Arabs and gradually spread to European countries. In the long process of communication, the numbers created by India are called "Arabic numerals". Later, although people figured out the ins and outs of "Arabic numerals", some people have long been used to the name "Arabic numerals". So it's still in use. At first, this digital system only had 1, 2, 3, 4, 5, 6, 7, 8, 9. There was no "0" at that time. At that time, "0" was still a black spot. Later, after hundreds of years of evolution, "0" officially appeared. Until then, this complete number.
I'm happy to answer your question. Please adopt them.