Why do lightning and thunder rarely occur during the day?

To understand how lightning is formed, we first need to know what lightning is. Lightning is a type of electrical discharge accompanied by lightning and thunder. It is generally produced by vigorously developing cumulonimbus clouds.

Middle. Here it is necessary to say a word about cumulonimbus clouds. First of all, clouds are made up of water droplets. In general, a cumulonimbus cloud is a kind of cloud with a very thick thickness and strong air flow up and down the cloud.

This is just a general perception. In fact, in the rainy season, there are lightning and thunder both day and night, as for why most people think that lightning and thunder generally occur at night, there are no more than two reasons:

First, judging by most cognitive phenomena, it is because the lightning and thunder that occur at night are generally impressive. If it happens to a large extent, not to mention children, even adults will be caught off guard, especially women, and they will scream again and again, which will invisibly exaggerate this terrifying atmosphere, which will easily leave a deep impression;

Second, the evening is the time for most people to rest, of course, it is not excluded that some people go to the night shift, so it can only be said that most people, since it is the rest time, most people are idle, so they will pay special attention to some things that have a big movement, and maybe it is due to people's curiosity. It is commonly known as joining in the fun.

This is not the case when man-made things happen, let alone sudden natural phenomena like lightning and thunder.

Especially for those who were scared without paying attention, this time the lightning and thunder will leave an indelible impression on her! So as long as it's night, especially on a rainy day.

These people will pay special attention to whether lightning and thunder will occur, so that they can take precautions in advance.

After a long time, the phenomenon of lightning and thunder that is prone to occur at night will gradually dominate the human brain, thus forming a general cognition.

High-rise buildings. There are many, and all are safe.

There are lightning cables, and most of the static electricity in the lower clouds has been channeled into the earth, so there is less lightning now.

Lightning and thunder often occur during the day, because there is plenty of light during the day, lightning is not easy for us to detect, and during the day, various sounds are mixed together, the noise is very loud, even if the thunder is not very clear.

It is because the brightness during the day is very large, and the lightning and thunder are relatively bright, so even if the lightning and thunder really occur during the day, it will not be visible.

Because it is relatively bright during the day, even if there is lightning, it is not particularly obvious, but at night as long as there is lightning, it is very obvious.

People usually refer to thunderstorms, but sometimes there is a phenomenon of thunder and lightning but not necessarily rain, so the term thunder and lightning is more accurate than thunderstorms. In the past, people could neither explain this phenomenon, let alone fight it, but thunder and lightning were worshipped as gods. Since the 18th century Franklin famously experimented with kites.

This problem belongs to meteorology, thunder clouds are mainly cumulonimbus clouds, containing a large amount of electric charge, which is easy to form in strong convective weather, generally appearing in summer high temperature weather, there will be lightning and thunder and thundershowers. Heavy rain is not necessarily only in strong convective weather, the common formation of heavy rain has stratus clouds, when the stratus cloud area is larger, and lower will also appear rainfall, and the thicker the cloud layer will be greater rainfall, and the heavy rain caused by cumulonimbus clouds is different, generally lasts longer, such as the common plum rain weather in the south of the Yangtze River will appear continuous heavy rain, but there is no thunder and lightning.

The generation of lightning is mainly the discharge process of static electricity in the clouds, and the formation conditions 1Cloud contact 3There is a sufficiently large voltage difference in contact with the clouds.

The absence of lightning is mainly due to the failure to meet the above conditions.

The lightning and thunder that occurs is because there are a large number of dark clouds in the sky that collide with each other and the water vapor rubs against each other, so the lightning and thunder are formed.

This happens because of the collision between clouds, and different clouds contain different ions.

Recently, the sky seems to be a little angry, resulting in a storm and rain for the past two days, lightning and thunder, making it very inconvenient to travel. In fact, thunder and lightning is one of the most spectacular weather phenomena in nature, often accompanied by violent storms, emitting dazzling lights and deafening sounds, and sometimes leading to the loss of people and property. But does anyone know why lightning and thunder sometimes thunder on rainy days?

Since the ancients could not correctly explain why thunder occurred in the sky, they associated thunder with ghosts and gods, and created many mythological stories. In 1749, the American scientist Benjamin Franklin unveiled the mystery of thunder through the kite experiment, and confirmed that "thunder is electricity", which is a natural discharge phenomenon in the atmosphere, laying the foundation of modern lightning protection technology.

When clouds in the sky begin to form, the number of charged particles in the clouds is small and there is no thunder. The clouds that produce thunder and lightning, usually the thunderstorm clouds that people often say, are convective clouds that develop very vigorously under certain meteorological conditions, and there are strong updrafts and downdrafts in the clouds, as the clouds become larger and larger, the clouds become thicker and thicker, and finally connect into a rolling dark cloud that is black and pressing! At this time, the positively charged and negatively charged particles in the cloud also gather in the upper and lower parts of the cloud under the action of various factors such as atmospheric convection, atmospheric electric field, and gravity, forming a positive charge center and a negative charge center.

When the positive and negative charges accumulate to a certain extent, they will break through the air and produce long-distance electrical discharges in the interior of the cloud or between two clouds, or between the cloud and the ground object, which is what we often call lightning and thunder.

The discharge voltage of lightning can reach more than 500,000 volts, and the maximum discharge current can reach 300,000 amperes. The blazing high temperature causes the air to expand rapidly when heated, and violently pushes the surrounding air, causing the air to vibrate violently and at the same time emit a strong flash and a **-like roar. Therefore, when thunder strikes, there will be lightning and thunder.

Since light travels much faster than sound, we always see lightning first and then hear thunder, and the farther away the lightning is from us, the longer the time interval between seeing lightning and hearing thunder.

Thunder is attenuated by atmospheric refraction and reflection by ground objects during propagation, so the farther away from us is the lightning, the more the sound is attenuated and the less thunder we hear. If the thunder we hear is a deafening roar, as if it is above our heads, it means that this lightning is very close to us, it is a great threat to buildings and creatures on the ground, and we must be careful to protect against lightning accidents. On the other hand, if the thunder is smaller, it means that the lightning is farther away from us and poses less threat to us.

In physics, "electric lightning" is a light phenomenon, and "thunder" is an acoustic phenomenon.

These two phenomena are collectively known as "thunder and lightning". Thunder and lightning are electrical discharges accompanied by lightning and thunder, which are spectacular and a little intimidating. Thunder and lightning are generally generated in cumulonimbus clouds with strong convection, often accompanied by strong gusts of wind and heavy rain, and sometimes hail and tornadoes.

Causes of lightning:

Thunder and lightning is a physical phenomenon that occurs in the atmosphere under the action of the atmosphere or clouds under the action of air currents, which causes the air to be broken down somewhere, and the charge neutralizes and produces strong sound, light, and electricity concurrency, which usually refers to the discharge phenomenon between charged clouds to the earth, between clouds and clouds, and inside clouds. This process of discharging produces strong lightning and a loud sound, which is often referred to as "lightning and thunder".

1. In the evening, first lightning flew, then thunder roared, and then heavy rain began.

2. Late one night, strong winds struck, lightning flew, thunder roared, and heavy rain poured in.

3. At that time, with the thunder of lightning and thunder, the landslide cracked, the road collapsed, the bridge was broken in an instant, the house collapsed, and the whole village became a ruin.

4. Hearing the news, his temper flew like lightning and thunder, scolding me for a bloody squirt.

5. Whenever lightning flies and thunder roars, we know that a downpour is coming.