However, with the development and update of science and technology, a lot of previously proved knowledge is biased, so some knowledge inevitably loses its authenticity. So, today, Bian Xiao will share with you some knowledge of textbook deviation to restore the truth of things.
1, The Great Wall of Wan Li is the only visible earth building in outer space.
Truth: 20th century
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After humans went into space in the 1990s, there was a saying that they could see the Great Wall, which once cheered the Chinese people. However, when astronaut Yang Liwei returned to Earth, a reporter asked him if he had seen the Great Wall. According to his own personal experience, he said realistically that he had never seen it.
On this topic, a shell user joked: As long as we add landscape lighting to the Great Wall to make it brightly lit at night, the astronauts on the International Space Station may really see a bright line winding in the north of China.
Columbus was a pure explorer.
Truth: The real reason why Columbus opened a new air route was to plunder gold and resources, that is, the primitive accumulation of capitalism at that time. Columbus can be said to be the ancestor of the black slave trade. He started the slave trade for the labor demand of capitalist society and the enjoyment of human nature. Moreover, what he did when he colonized America was inhuman, which was not mentioned in his behavior textbook, but only the deeds of Columbus on an island. In addition, it was actually the Viking Lev Eriksson who first discovered America. Before the discovery of the New World, Columbus had been killed by a black native on the island.
Once people go into space, they will lose weight.
Truth:
In elementary school, many people will learn from textbooks that once people enter space, they will have weightlessness and fly involuntarily.
However, after being certified by scientists, gravity is not a unique product of the earth. Other planets in the solar system also have gravity. And even if astronauts go into space, they will still be affected by the gravity of the earth. Even in space, astronauts are still influenced by the gravity of the earth, otherwise they would have flown out of the solar system.
Due to lack of oxygen, the blood in our blood vessels is blue.
Truth: Our blood is crimson, while our blood vessels are transparent and slightly yellow. However, sometimes our blood vessels are blue. Why?
Some people say that it is caused by lack of oxygen. In fact, our veins look blue, because subcutaneous fat absorbs light at low frequencies, and only blue light can be seen through the skin.
5: Napoleon was a very small man.
Truth: You will learn about Napoleon in the history books of primary schools. It is roughly described in the book that although Napoleon was short, he was only about 5 feet 2 inches (157.48).
Cm), but with lofty aspirations, the French Empire was finally established.
But new historical research shows that Napoleon's height was actually close to 5 feet 7 inches (170+08
Cm), in his time, it was not short for French men to have such a height.
6. Rain is shaped like a tear.
Truth: There is an article "Raindrop" in the primary school Chinese textbook, which describes raindrops and is illustrated to make raindrops look like a teardrop. Actually, it's not. Compared with tears, raindrops are more like a lovely hamburger or kidney bean.
7: When making a phone call, the signal is transmitted through the satellite in the sky.
Truth: Many people think that when making a phone call, the signal of the mobile phone is first transmitted to a satellite in space, and then returned to the ground to connect with another person's mobile phone. Junior high school physics involves.
But this is actually wrong. The truth is that when making a phone call, the mobile phone will search for the signal, get in touch with the nearest signal base station, and then the signal base station will transmit the signal to the dialed number through the underground cable.
The signal will be transmitted by satellite, that is, when making some special international calls, but when making international calls, the signal transmission is still through submarine cables.
8. Feeling: touch, smell, taste, hearing and vision.
Truth: It is mentioned in Basic Knowledge and Literacy of Chinese in Middle School that people have five senses: touch, smell, taste, hearing and vision. To help you change your requirements, you should analyze the image and personality of the characters from these five senses. This generally leads us to think that there are only five kinds of feelings.
However, our feelings about the world are far more than these five points.
This way. Hunger, thirst, exercise, stress, itching and so on are all part of our sensory world, and so is the feeling of wanting to pee.
9. Lemmings often commit collective suicide.
Truth: Middle school Chinese textbooks describe lemmings in this way-in order to ensure the continuation of species and control the population size, they systematically cluster and jump into the sea. This behavior is interpreted as all kinds of detachment and feelings about life and death.
But this statement is only people's imagination of lemmings' migration behavior, and it has not been verified by actual science.
Further reading: 1958
In 2006, the documentary White Wilderness filmed by Disney Studio was released. This documentary showing lemmings jumping into the sea was very popular and won the Oscar for best documentary. However, the film caught Fang's attention, and he wrote a fake article for it, pointing out that the scenes in the film were all artificial illusions. Besides, jumping into the sea is useless. Lemmings can swim ...
10: We only developed 10% of the brain.
Truth: This statement is quite attractive, because it implies that we have great potential to become smarter, so many people will choose to believe it without thinking.
However, according to the magnetic resonance imaging technology, a simple action, such as shaking hands or releasing hands, or jumping up to say a few words, requires more than 10%.
Part of the brain participates in activities, not to mention the time for a person to think deeply. Even when you feel that you have done nothing, your brain continues to work. The weight of the brain accounts for 3% of the body, but it still needs one-fifth of the energy of the body to support it at any time.
The above is the knowledge about deviation in the textbooks listed by Bian Xiao, and there may be mistakes occasionally, which are all blind spots in Bian Xiao's knowledge. Welcome to comment enthusiastically, point out the shortcomings of Bian Xiao, share your knowledge mistakes with you and express your views.