These cold knowledge, as a clear stream of academic circles, you must have never heard of it in your daily life, but it has been silently existing, affecting our lives.
Believe me, after reading it, you can't help but exclaim, "I seem to know something!" " "
1. Which part of the human body is least afraid of pain?
What do you think, elbow? Face? None of this is actually your brain.
This is because the human brain has no pain receptor, so it won't feel anything.
So doctors perform craniotomy on patients, and patients can stay awake. Moreover, because of the high risk of brain surgery, doctors must talk to patients from time to time to confirm whether their physical functions are still normal.
You see, it's okay to play the violin during the operation.
But why do we still have headaches sometimes? Because there are countless nerves, soft tissues and blood vessels around your brain, they can easily receive pain information, which will bring you endless headaches.
It's scary to think about singing and dancing in the hospital operating room.
Beauty is in the eye of the beholder. Is there any scientific proof?
A: It is probably related to personal preferences, but we did find the relationship between people's eyes and things they like: when they see people or things they like, their pupils will be dilated by 45%.
As one of the commonly used detection methods of the FBI, pupil dilation and contraction are only controlled by the body subject to autonomic nerves, and are not affected by human consciousness. When people see what they like, their pupils will naturally expand to get clearer images, and vice versa, so as to reduce the discomfort caused by negative stimuli.
Next time, before you confess, take a closer look at whether your pupils are narrowed when the other person sees you.
Night owls say they are more active at night. Are they talking nonsense?
A: Research shows that people's brains are actually more active at night than during the day.
You must think that people's frequent activities and complicated work and study during the day will stimulate the operation of the brain more, but in fact it is just the opposite.
When you rest, your brain turns on the switch of activity. When you sleep, neurons will produce huge magnetic storms to strengthen the connection between neurons, thus strengthening our memory. Without this mechanism, it is even difficult for us to remember what happened a few days ago.
But I don't want to hear my boss say to me in the future, "What are you sleeping? Get up. "
4. When I was a child, it was A Qing Palace's play. Now it's an American drama. If the people inside disagree, they will be beheaded So, will people still feel pain after being beheaded?
A: We can't confirm the answer to this question, but some studies have found that even after being beheaded, human consciousness will remain 15 to 20 seconds.
Although the time may not be so accurate, the blood left in the head may be enough to keep the head conscious for more than ten seconds after leaving the body.
It is said that during the French Revolution, Charlotte Cody, who assassinated Jean-Paul Marat, was arrested and slapped by the executioner after being beheaded. Surprisingly, her cheeks turned red, revealing an angry expression. This picture is extremely scary.
Boys must have had such questions. Why do girls often call it pain? Do they feel pain easily?
A: Actually, women have twice as many nerve receptors as men, so they feel more pain, but they are also more tolerant.
Boyfriend OS: There is no pain that a cup of hot water can't solve. If so, have another drink.
It is said that the physical quality of white people is generally better than that of yellow people. Is there a physical skill that allows us yellow people to kill white people instantly?
A: That's the "Asian Squat" that most foreigners can't complete.
The so-called "Asian Squat" refers to squatting to the lowest place when the sole of your foot touches the ground, with your legs completely closed and your hips close to your heels, but most foreigners can't do this. When they squat, the soles of their feet touch the ground and the heels don't touch the ground. If their heels touch the ground, they will lose their balance and fall.
There are different opinions on the explanation of this phenomenon. The public generally agrees that Asians are generally thin and have relatively small hips, so it is difficult for fat people or people with big hips to complete this action.
I bet you are trying Asian Squat now.
7. Every time we try to recall something, we always feel that some new scenes or factors will enter our memory. Are our memories disordered?
A: Actually, every time you think about something, your brain changes a little. Basically, every time I think of things that have passed, I just think of things that I thought of last time, and so on.
"You are watching the scenery on the bridge, and the people watching the scenery are watching you upstairs."
8. You clearly remember doing something, but when it comes to it, people around you categorically say that it never happened. Did you ever doubt your life at that time?
A: You may not believe it. People can really be deceived by false memories. Some distant memories, which you remember clearly, are vivid, as if they happened yesterday, but they may never happen. ?
People's memory is always likely to be disordered to varying degrees, and some things in your memory may never happen in real life.
A doctor of psychology at the University of Washington found that people's memory is likely to be influenced by foreign things or outsiders, thus implanting a false memory in their minds.
My brain deceived me. Is it 123 15?
9. Want to know how to make women more impressed by what you said?
A: First of all, try to keep your voice down. ?
Researchers at a university in Scotland have found that women remember what men whisper more than sharp voices, and sharp voices like women don't attract their attention.
But Justin Timberlake and Maroon 5 lead singer Adam Levine conquered the global fans with their shrill voices.
10. Why do some people often dream, while others seldom dream?
A: This difference contains many complicated factors, but some scientists claim that people who dream more may have higher IQ.
Although this may be true, you should not think that you are mentally defective just because you can't remember whether you have had a dream or not. Many people can't remember their dreams, and the average length of most dreams is only 2 to 3 seconds.
Question: Does daydreaming count?
1 1. Sometimes I always feel that time passes so slowly. Is this our illusion?
A: Actually, the day and night cycle of the earth is getting longer every year. 620 million years ago, an Earth Day lasted only 2 1.9 hours. ?
But if you think why this week has passed so slowly, you can rest assured that you are not alone. However, if we persist for another month, the victory of 1 1 day holiday is waiting for us ahead, and we are a little excited to think about it.
However, the thought that people may work longer every day in the future will break the heart of office workers.
12. Some people always feel that they are the "sun" and everything revolves around them. Is this reasonable?
A: We don't comment too much on megalomaniacs, but those people need to know that even the sun is not at rest in the center, because the solar system runs in a spiral route in galaxies, rather than the two-dimensional model we usually imagine.
So the planets in the solar system not only revolve around the sun, but also chase it.
13. We all know that Russia is the largest country on earth, but how big is it?
A: You can search for this question yourself, but we only know that the land area of Russia is slightly larger than the surface area of Pluto.
North Korea and Finland, two seemingly far apart (in fact, far apart) countries, are separated by only one Russia.
Pluto is not only small in size, but also slow in revolution. Because Pluto hasn't gone around the sun since it was discovered.
Pluto was discovered in February of 1930 and 18. It takes 248.09 years to orbit the sun once, so the first orbit around the sun will be completed on March 23, 2 178.
Bruto: "Is it easy for me to go around such a big circle?"
14. We all say that "good men don't fight women". Is this a man giving way to a woman?
A: In medieval Germany, men chose not to fight with women because they couldn't beat women.
At that time, couples could settle disputes by dueling, but in order to be "fair", the husband had to fight in a hole with one hand tied behind his back, while the wife was completely free and equipped with a sack of stones.
But we don't encourage people to solve their problems through physical conflicts. People who can talk will never do it.
If this sack of stones really goes down, the husband may not see the sun the next day.