Why do people feel so cold when they are affected by high winds?

To clarify this problem, we must clarify the temperature. Temperature is the hot and cold range of an object, the stronger the molecular energy in the object, the more intense the molecular movement, the higher the temperature of the object, and vice versa. Temperature essentially reflects how violently the molecules within an object move.

Human beings are homeothermic animals, body temperature is basically maintained, the human body in life activities by decomposing glucose, protein, fat, etc. to provide energy to provide power and heat to meet the needs of life activities, maintain the temperature of the human body around the body, the temperature outside the human body is low in winter, the human body temperature is high, the heat is from the high temperature of the human body to the outside, through the air to the outward conduction.

If the outside temperature is too low, the heat supply of the human body by decomposing nutrients will be in short supply, and it will not be able to meet the needs of the human body for constant temperature, at this time, it is necessary to add clothes to keep warm, or through the fire, and adjust the outside temperature with air conditioning, so as to reduce the temperature difference between the human body and the outside world to achieve the purpose of not transferring heat to the outside, and even conducting heat from the outside to the human body, so as to ensure the basal body temperature of the person.

In summer, the outside temperature is high, the heat provided by the human body through the decomposition of nutrients and the excess heat generated by exercise, etc., can not be dispersed, the molecular movement in the body is strong, the body temperature will rise, the higher it is, the constant temperature environment required for human life activities will be destroyed, and life activities can not be carried out normally.

In the long run, people will get heat stroke, the human body will sweat in this case, through the evaporation of sweat to take away the excess heat generated by the body, so as to achieve the purpose of reducing body temperature, if the outside temperature is too high, by natural evaporation can not meet the needs, it is necessary to blow a fan to heat the air convection so that the air quickly evaporates from the sweat of the high-energy water molecules to take away the energy of the human body, so that the body temperature can be lowered faster, if the outside temperature is very high, The molecules in the outside air are all high-energy molecules, which are higher than the molecular energy emitted on the **, which not only cannot dissipate heat, but instead transmits the energy to the human body, and the human body will be hotter.

Therefore, it is not necessary for the human body to feel cold when blowing the wind, blowing higher than the temperature of the human body to a certain extent, bringing more energy than the energy emitted by the human body, and people feel hotter instead, if the blowing temperature is low to a certain extent, the energy brought to the body is less than the energy taken away from the human body, the human body will feel cold, if you are wearing wet clothes, the moisture on the surface of the body is much larger than the amount of sweat, the more high-energy water molecules are carried away by the cold wind, the more rapid the temperature of the human body will decrease, and it will cool down quickly. When it is cold to a certain extent, it will feel cold.

So the wind will feel cold, which is not necessarily a thing. The blowing process is accompanied by the transfer and transfer of energy. The physical law of energy transfer is that high energy asks low energy transfer, from high temperature to low temperature.

There are three modes of transmission, conduction, convection, and radiation. To understand the matter of blowing wind and cooling, you must understand the relevant physical principles.

Because the wind blowing over the surface of the human body accelerates the heat loss of the human body, which makes us feel extra cold, and the wind will also bring cold air to us, which will also make us feel cold.

Normally, it is not particularly cold, but when there is wind, it will blow on the body, so it makes people feel very cold.

Because it feels bad to be blown by the wind. Strong winds blowing in your face will reinforce people's perception of cold, so they will feel extra cold.

The gale began to open for business, and the gale in Beijing was already 7 or 8, which was already very strong.

When it's windy, most people feel coldBecause the wind blows because the cold air visits, and because there is cold air, it will make people feel cold all over the body, cooled down, cold is the most direct feeling.

On windy days, when cold air visits, first of all, you will wrap up your clothes and the wind will begin to blow in many places, and make forecasts, blue warnings, orange warnings, yellow warnings, etc., every time we see these warnings, we will feel that we are going to cool down, we have to pay attention.

On windy days, we subconsciously wrap our clothes tightly, then button up our hats, and put a scarf around our necks, so that we may not feel warm.

A windy day represents a visit by cold air, and under the influence of cold air, it will cool down all over the country, and we are not afraid of snowy days, because we all know that snow is not cold, but it will be very cold when it blows.

Especially in winter, the northwest wind blows, the northwest wind will be very cold, because of the abnormal air pressure, so it causes the wind, because the temperature difference is particularly large, so these abnormal natural phenomena are formed.

On windy days, we will subconsciously feel cold, that is, because the cold air visits, it cools down, and on days when the wind comes, it will blow directly into our body, making us subconsciously feel cold.

What do you subconsciously do when the wind blows? Does it shiver? How many chills? This is how the wind affects us, making our bodies feel extra cold.

Try to go out as much as possible on windy days, if you feel cold, you must add an extra piece of clothing, as long as the wind blows, the temperature will drop, it will make our body feel cold, on windy days, if the windy level is very large, don't try your weight to be able to withstand several levels of wind, because too thin people are not easy to be blown away by the wind.

When the reporter interviewed the lightning brother on the streets of Beijing, he said that riding an electric car, if she didn't carefully control the handlebars, it was easy to blow her electric car into the fast lane. So do you think the wind is very large?

On windy days, try to minimize the chance of going out, and if possible, try to go out by car.

On windy days, you must add an extra piece of clothing, and on windy days, the air environment will be particularly bad, so you must remember to wear a mask and wear a windproof goggles.

Be sure to pay attention to safety when traveling on windy days.

Personally, I think it's because the wind can penetrate your clothes and directly make you feel the coolness of the wind, the most important thing is that the wind keeps blowing, which will make your whole body cool and not feel warm.

It's because when the wind is strong, it blows very cold, and there is indeed a wave of cold air coming in, so everyone feels very cold.

In fact, it is because these winds are really cold, and after the wind blows on people, they will take away a lot of heat from the human body, so people will feel extremely cold.

That's because the wind is cold, and it's winter, so the temperature is already relatively low, and if there is a cold wind, it will be even colder.

Because the cold air is rampant in winter, under the blowing of strong winds, the cold air will feel extra cold when it comes into contact with us.

a. The direct cause of the formation of wind is the horizontal pressure gradient force, and the uneven heat and cold are the root causes, so it does not conform to the topic;

b. Atmospheric motion is divided into horizontal motion and vertical motion, and the horizontal motion of the atmosphere is wind, so it does not conform to the topic;

c. Thermodynamic circulation is the air circulation formed due to uneven cold and heat on the ground, and thermal circulation is the simplest form of atmospheric motion, not wind, so it does not conform to the topic;

d. The wind direction is the direction of the wind, such as the northeast wind is the wind from the northeast direction, so it is correct to choose: d

In the summer, the evaporation of sweat on the surface can take away some of the heat, but if you are in a humid environment, the sweat evaporates more slowly, and the heat dissipation is slower, and you will feel hotter. In winter, you rely on the thermal insulation effect of your clothes to keep you warm, and water conducts heat better than dry air, which means that wet clothes conduct heat better than dry clothes, which makes it easier to lose heat from your body, and you feel colder.

The weather is cold, the temperature is lower than the body temperature, and at this time, the body is silently working hard to heat the small air layer for you, so the temperature of the small air layer is slightly higher than the air temperature and slightly lower than the body temperature. If a strong wind blows at this time, the small air layer that was easily heated by your body will be blown away, and it will be replaced by a "new" small air layer with a low temperature to cover you, and you will naturally feel cold.

The same goes for humidity. Humidity also affects the perceived temperature. For example, when it's cold, the higher the humidity, the colder it gets; When it's hot, the higher the humidity, the hotter it gets.

The most typical examples are Beijing and Shanghai: in the summer, Shanghai is even more sultry in the summer with the same temperature; In the winter at the same temperature, Shanghai feels even more cold and biting. This is where humidity exerts its power on the perceived temperature.