What trivia do you know?

1. History1. The White House in the United States was painted white because it was burned.

After the United States gained independence through the War of Independence, it got rid of British colonial rule and continued to expand its strength, but Britain did not want to see the United States grow stronger and suppressed the United States in terms of political and military aspects.

Thus, in June 1812, the "Second American-British War" broke out, and the British captured Washington in August 1814 – the White House was burned down by the British army (half of which were Canadian militiamen, and Canada had not yet gained autonomy at the time), and after the war (1817) the walls had to be whitewashed, hence the name.

2. Many of the names of European countries seen on today's maps were created after the end of World War I.

In 1913, there were only a few countries in Europe.

After the First World War in 1919, the pattern of the world changed dramatically, and Britain, France, and the United States organized the Paris Peace Conference after the war.

Under the dominance of the three countries, the borders of Germany were compressed, the Austro-Hungarian Empire was disintegrated into Austria, Hungary, etc., Poland was restored, and Estonia, Latvia, Lithuania and other countries became nation-states in accordance with the principle of national self-determination.

3. America is actually a person's name.

Columbus was the first European navigator to reach the American continent, but he always thought that he was going to India, so he called the local aborigines Indians, until Columbus died, he thought that he was going to India.

Later, the Italian navigator Amerigo made several voyages to the coast of South America between 1499 and 1504 for field trips. When he returned to Europe, he drew up a new map and affirmed that the area he had visited was not "India" as Columbus had suggested, but "the New World."

From 1507 onwards, people called the "New World" "America" after him

4. The early Spring and Autumn period was very "elegant" in warfare.

At that time, there were some rules of war among countries, such as "no drums, no columns", which was like a football game, everyone stood in position and signaled the referees to be ready before the game could start.

Another example is "no serious injury, no chasing north", that is, the same person cannot be injured repeatedly during fighting, and if the opponent is already injured, he cannot fight a second time. If you defeat others, you should accept it when you see it, and you can't hold on to it.

In 597 B.C., the "superpower" Jin and Chu in the battle of Yi, the Jin was defeated, in the escape, many soldiers of the Jin army fell into the mud pit, the chasing Chu army not only stopped the pursuit, but took the initiative to teach the Jin army how to draw the crossbar in front of the car in order to escape from the mud pit, the Jin army repaired the car and fled again, the Chu army pursued again, a few steps Jin army chariot broke again, the Chu army helped repair the chariot again, and then chased, after chasing for a while, it was not chased.

There is also "don't capture Ermao", that is, you can't capture the gray-haired old man. Gu Yanwu, a native of the Qing Dynasty, also sighed after studying the history of the Spring and Autumn Period

In the two hundred and forty-second years of the Spring and Autumn Period, there were no murders at the time of the car battle.

The military general paints a unicorn; second-grade scarlet robes, painted lions; three-grade scarlet robes, painted tigers; four-grade scarlet robes, painted leopards; Five-grade green robe, painted bear; Sixth-grade and seventh-grade green robes, painted biao; Eight green robes, painted rhinoceros; Nine green robes, painted seahorses.

Therefore, people call the civil and military ** "well-dressed beasts", and later because of the corruption of some officials in the middle and late Ming Dynasty, oppressing the people, and doing evil, it naturally became a derogatory term.

6. Since the Song Dynasty, the Chinese have only three meals a day.

Before that, it was common to eat only two meals, because the Song Dynasty had developed industry and commerce, and there was no curfew, so one dinner was added.

7. The person who wrote the most poems in Chinese history was Emperor Qianlong.

In 2014, when the staff of the Forbidden City were cleaning up the cultural relics, they found two boxes with "Qianlong Poems" written on them, which contained a total of 2 Qianlong poemsMore than 80,000 songs, plus 1More than 70,000 songs, a total of 4More than 50,000 songs.

You must know that after 289 years of Tang Dynasty, there were more than 2,000 poets, and the poems they wrote were collected in a "All Tang Poems", adding up to more than 48,000 poems, and the poems written by Qianlong alone were almost close to the entire "All Tang Poems".

However, there are so many poems written by Qianlong, but very few can be circulated in the world, and it can only be said that there is quantity but not quality.

8, He Shen, Ji Xiaolan, and Emperor Qianlong are not the same age.

In the official history, He Shen was born in 1750, 26 years younger than Ji Xiaolan and 39 years younger than Emperor Qianlong, he is several generations behind, far from the feeling of his peers in TV dramas.

On the contrary, Liu Bang and Qin Shi Huang seem to be people of two eras, but they are actually peers who are only 3 years old. Qin Shi Huang was born in 259 BC and Liu Bang in 256 BC.

9. Today's China, as a "big country of foodies", is passed down step by step and eaten little by little.

In ancient times, the food of the Chinese was quite monotonous, except for the five grains, which were wild vegetables. For example, the water weed in the "Book of Songs" is a kind of aquatic weed, if you want to eat it and fish it, you have to choose and choose, "left and right", which takes a lot of effort;

Before the Qin Dynasty, there was no lotus root in China, and the lotus root was a crop native to India;

Before the Han Dynasty, there were no grapes, celery, coriander, broad beans, cucumbers, garlic, etc. in China.

Before the Northern and Southern Dynasties, there were no eggplants in China;

Before the Sui and Tang dynasties, there were no lettuce and spinach in China, which came from Persia and the Mediterranean;

Before the Song Dynasty, watermelons did not exist in China;

Before the Yuan Dynasty, there were no carrots in China;

Before the Ming Dynasty, there were no potatoes, corn, peppers, tomatoes, etc. in China, and these origins were all American;

Before the Qing Dynasty, there were no onions, cabbage, etc. in China.

10. The characters printed on the 4 kings in the playing cards have a great background.

The King of hearts is Charlemagne, the King of Spades is King David, the King of Clubs is Alexander the Great, and the King of diamonds is Caesar.

Among them, Charlemagne, a figure not well known to Chinese but thunderous in the West, was crowned "Emperor of the Holy Roman Empire" by the Pope in 800 AD (during the Tang Dynasty of China), and through more than fifty wars, the Kingdom of the Franks became a great empire that controlled most of Western Europe: the Atlantic Ocean to the west, the Danube River to the east, the North Sea to the north, and central Italy to the south, almost encompassing the entire territory of the former Western Roman Empire. Since the collapse of the Western Roman Empire, there has never been such a large state in Western Europe!

He has made outstanding contributions to administration, justice, economy, culture and education, and has played a role in the development of medieval civilization, and is known as the "father of Europe".

In 843, shortly after Charles' death, his three grandsons divided the empire in the Treaty of Verdun, which divided into three and became the prototype of the three European states that would become France, Germany, and Italy.

The picture shows the ** of Charlie's Empire, source: "Atlas of World History".1. The blood of an octopus is blue.

The color of blood is determined by the material elements contained in the protein of blood cells, and the blood of humans and vertebrates is red because the blood contains a large amount of hemoglobin containing iron.

Octopus blood contains a blue pigment protein, which is commonly referred to as copper-containing hemocyanin. The function of this hemocyanin is to transport oxygen, and when the octopus moves, the oxygen enters the blood vessels of the octopus and binds to this hemocyanin, so that blue blood is formed.

2. The giraffe's tongue can lick into its ears.

Giraffes have a long, soft, blue-black tongue. A curious zoologist once measured a giraffe's tongue to be 50 centimeters long, almost the length of an adult's arm.

Giraffes have particularly flexible tongues that roll up from thorny acacia to tiny leaves. Some speculate that the tongue can definitely lick its own ears if it wants to.

3. Squirrels recognize each other by "kissing".

Squirrels will hide the food they find in one place every time, but they never rely on memory to find food storage, but on their sense of smell. The same is true for the same kind, the first time they meet the same kind, the squirrel will rely on the sense of smell to confirm the other person, sniff very close, it looks like kissing, when the second time they meet the squirrel, they will know who it is when they smell it.

4. The owl's eyes can't move, so it can only turn its head.

Although the owl's eyes are large and seem to be bright, in fact they cannot move and can only rely on their necks to turn.

However, their necks are incredibly flexible and can rotate 270 degrees!

Moreover, owls can naturally blink at the same time with different left and right eyes, and the rhythm and frequency are controlled by themselves.

5. The magpie seems to be gentle and quiet, but it is actually "very capable of fighting".

Magpies are crows that look harmless to humans and animals, but they are actually very aggressive.

They are never afraid of things, they are one of the few birds that can snatch food from the mouths of birds of prey, and they have a high IQ and often fight in groups, even eagles can't beat them.

6. Elephants can't jump.

According to the researchers' report, both adult and calf elephants do not have time in the air during the run, which means that they always have one leg in contact with the ground when they are moving.

The bulky size is one thing, but the other is that elephants have very fragile calf muscles and are not as flexible as their ankles, so they can fall if they don't stay in the air.

7. Zebras generally sleep standing up.

Zebras generally live in the savannah where predators can come out at any time, and they are very fond of food for large carnivores, they have little ability to resist, and they can only desperately run away when they encounter predators, and if they lie down to sleep, they will slow down when they get up and run, so zebras have developed a unique skill: sleeping standing up!

In addition, zebras are not as serious and cautious as they seem, but very lively - the barking of ghost animals, combined with the smile that often appears inadvertently, has earned them the nickname: Husky of Horses.

8. Goats have an almost 360-degree field of vision.

Most animals, including humans, have circular pupils, but goats, toads, octopuses and other animals have horizontal pupils, which will expand their horizon line of sight and better spot the presence of predatory animals, and goats have almost 360-degree full coverage.

9. Sloths are strong swimmers.

Sloths can only move about 6 centimeters per second, and even in the face of danger, they can escape faster than 02 m sec.

It's hard to imagine that a sloth, which is slower than a tortoise, is a strong swimmer, parade through water three times faster than it can move on land!

10. The fingerprints of koalas are almost exactly the same as those of humans.

Fingerprints are not common in nature, and are generally only possessed by humans and primates such as chimpanzees and gorillas that are closely related to humans.

But there is a non-primate that not only has fingerprints, but whose fingerprints are almost identical to human fingerprints, which are difficult to distinguish even with a high-resolution microscope. This animal is the koala, commonly known as the koala.

11. Spiders have small claws.

Spiders have furry feet, but they don't just have a lot of leg hair on their feet, they also have cute little claws on their feet under a magnifying glass!

1. Bacteria that help digestion can rest in the appendix.

The appendix has always been "notorious", and it is generally considered that the appendix is useless, and the only way to stand out is through the occasional infection, which causes appendicitis.

However, scientists have found that the appendix is useful for bacteria that aid digestion. After frenzied activity in the internal organs, these digestive bacteria can rest in the appendix and sometimes use it as a breeding ground to replenish the gut with new bacterial members.

2. How powerful is a sneeze?

The general velocity of a sneeze is about 150 km/h, which is 417 meters per second, which can instantly spray droplets several meters away, almost close to the maximum wind force of 42 meters in the center of Category 14 Typhoon Haiyan.

3. The length of human blood vessels can circle the earth two and a half times.

There are more than 100 billion large and small blood vessels in the human body, and if all the blood vessels are connected into a line, it is about 100,000 kilometers long, which can circle the earth two and a half times, which is equivalent to 7 tons of blood walking 100,000 kilometers every day.

4. How many pixels does a human eye have?

When we take pictures now, we feel that the pixels are already very clear with tens of millions, but in fact, the human eye kills most cameras, because the pixels of the human eye are about 500 million!

5. The number of human hairs is about the same as that of chimpanzees.

It's just that the role of human hair is not obvious, and it is very delicate and difficult to observe. At present, scientists are not entirely clear why humans are gradually losing the protective effect of hair, and it is said that this change is adapted to the perspiration of early humans, and is not prone to the appearance of parasites such as lice.

6. No matter how old you are, there is a chance that you will have mites in your eyelashes.

They are able to feed on senescent ** cells and oils produced in human hair follicles, and these mites are generally harmless to humans and only produce some allergic reactions. The mites that inhabit the eyelashes are one-third of a millimeter long and almost transparent, and one simply cannot see their presence through the naked eye.

7. The iron element in the human body can make a nail about 4 cm long.

8. The body of an adult probably includes:

7,000,000,000,000,000,000,000,000,000,000 atoms (7 followed by 27 zeros).

9. There are more than a dozen trillion cells running in your body every day.

Here's what white blood cells look like when they're attacking the parasite:

10. Sight, hearing, taste, smell, and touch are the five important sensory functions of the human body.

Vision is the most luxurious sensation in the human body, because the process of producing vision requires the most energy. When a person dies, blood flows into the brain in large quantities to increase the amount of oxygen in the brain, so vision disappears first when the energy and oxygen left in the eye (ATP) are not enough to maintain the normal function of vision.

The sense of touch is also transmitted by stimulation and then a change in membrane potential, a process that requires little energy, but as the body's surface blood pressure drops dramatically when the body dies (rushing to the brain), the stimulus receptors lose their function.

The essence of the two senses, smell and taste, is the same, and their conduction is carried out by an enzyme cascade. In this series of reactions, a constant temperature is required, and when the person dies, the body temperature plummets, and such a reaction does not take place completely, and there is no sense of taste and smell.

The auditory conduction is through the hair cells in the cochlear fluid, which converts the sound signal into an electrical signal, and then transmits it to the brain, so it finally disappears.

1. On Venus, a day is longer than a year.

Generally speaking, when describing the slow passage of time, we use the idiom "living like a year". On Venus, this idiom is especially vivid.

Venus rotates slowly, taking the equivalent of 243 days (5,832 hours) on Earth. In contrast, Venus orbits the Sun relatively fast, with an orbital velocity of 3502 km sec, the orbital period is equivalent to 224 on Earth7 days (5392.)8 hours). So, the day of Venus is longer than the year.

2. The Pacific Ocean in our east is actually much larger than expected, covering one-third of the Earth's area.

The above diagram may not be a good idea, but when you put all the earth's land area in the Pacific Ocean, there is still a surplus of more than 30 million square kilometers, which shows how big it is.

3. The world's farthest land in the ocean is located near the Alashankou, which is called "Eurasia is difficult to reach".

The place is also located at a distance of almost 2,500 kilometers from the nearest ocean.

The farthest point from land is the "Nemo Point" in the Pacific Ocean, surrounded by a full 9 million square miles of water. The nearest land mass is more than 2,600 kilometers away.

4. From the perspective of the entire history of the earth, there have been more than 115 billion human beings, including more than 7 billion existing people, and you are one of them.

Each point in the graph above is 10 million people, or about 1. per year400 million people were born, about 57 million people died, and an estimated 108 billion people have lived and died on Earth.

5. Which is the easternmost, westernmost, southernmost, and northernmost state in the United States?

Needless to say, the southernmost is the state of Hawaii.

The northernmost and westernmost are also easy to answer, both of which are Alaska.

What many people don't expect is that the easternmost state is still Alaska!

Why? There is a long chain of islands under Alaska called the Aleutian Islands, and the 180-degree meridian passes through the Aleutian Islands, and some small islands run to the eastern hemisphere, so they become the easternmost territory of the United States.

The Aleutian Islands are shown on the left, and the sides of the 180-degree meridian are shown on the right6. There are territorial disputes between many countries in the world, but at the junction of the Egyptian and Sudanese borders on the African continent, there is an inland area called Bir Tawil that is unclaimed.

Egypt and Sudan have not only turned a blind eye to this 2,000-square-kilometre land, but have simply avoided it.

Of course, this is not without reason.

In the final analysis, it was the British "mine" that Egypt and Sudan were both British colonies in Africa, and of course it was impossible for Britain to centralize the management of such a large area of land, so in 1899 it was demarcated with 22 degrees north latitude as the dividing line.

Later, in 1902, Britain revised the border between the two countries, assigning to Egypt the Biltavil (dotted strip on the left side of the map), which had previously belonged to the Sultan in 1899, and to the Sudan (dashed strip on the right), which had previously belonged to Egypt.

This adjustment later led to a major event. It turned out that Harabi was much more valuable than Biltayvel, it was about ten times the size of Biltayvel, scattered with oases of grass and trees, and close to the Red Sea, with the ports of Saladin and Harabi, with a total population of about 10,000 people, and later the discovery of oil.

Naturally, the Sultan was satisfied with such an adjustment, but Egypt was not satisfied.

Both countries fear that if they claim Biltaville as territory, they will damage their position in the sovereignty dispute over Harabi, because they will be presented by the other side as recognizing the territorial demarcation line that is unfavorable to them. Neither family wanted to pick up the sesame seeds and lose the watermelon.

7. China is the coldest country in the world at the same latitude.

Paris, France, is about 48 degrees north latitude, and Paris in winter is like this, and the snow is a little "gentle";

Further north, London, England is located at about 51 degrees north latitude, which is like this in winter;

Continuing north, Helsinki, Finland is located at 60 degrees north latitude, which is like this in winter;

And Harbin, China, located at 46 degrees north latitude, looks like this in winter, covered in thick snow and ice, and looks significantly colder than all three.

In fact, although Harbin is lower than Paris, London, and Helsinki, it is indeed much colder than all three - the average temperature in January is nearly 15 degrees lower!

There is a more obvious contrast, China's extremely cold Mohe, located at about 52 degrees north latitude, the winter temperature is close to minus 30 degrees, and the lowest temperature in Liverpool, England at the same latitude is mostly above 0, and the port is not frozen all year round, similar to the temperature of Hangzhou and Changsha in China.

This reflects a geographical knowledge: our country is the coldest country in the world at the same latitude. The average temperature of the latitude circles around the world is called the average temperature of the latitude circles. The average temperature in the northeast of China is about 14-18 lower than that of the latitudinal circle. the middle and lower reaches of the Yellow River are lower by 10-14; lower south of the Yangtze River8; Even the coastal areas of South China are about 5 low.

Why is there such a big difference?

Most of the cold air invading China comes from the Arctic Ocean, and then strengthens through the cold Siberia, under the guidance of the high-altitude northwest airflow, the cold wave will erupt and continue to accumulate to invade China, making China's temperature significantly lower than that of the same latitude.

8. Hulunbuir, the prefecture-level city with the largest administrative area in Inner Mongolia, covers an area of 2620,000 square kilometers!

How big is that? It is about the area of Shandong Province + Jiangsu Province, which is equivalent to the area of the United Kingdom!

9. The county with the largest administrative area in China is Ruoqiang County, Xinjiang, with an area of 2020,000 square kilometers!

It is basically equal to the area of Jiangsu Province + Zhejiang Province.

In addition to its large area, Ruoqiang County is also a well-known important town on the Silk Road, a meeting place of Eastern and Western cultures, and has four "best" in the world.

The most historic site. The world-class cultural heritage site - Loulan Ancient City is located in Ruoqiang County, the world's most distinctive and unique Loulan culture, which can be called "the world's most cultural landscape";

The most ecological resources. Ruoqiang County Altun Mountain National Nature Reserve is the largest nature reserve in China and the largest inland nature reserve in the world.

The best of geography. Ruoqiang County is located in the Tarim Basin, the largest basin in China, with the Tarim River, the longest inland river in China, Lop Nur which has to be mentioned, and the Taklamakan Desert, the Kumtag Desert and the Kumukuli Desert.

The largest mineral resource. Ruoqiang County is the largest potash storage base in China and the largest nickel capital in China.