Leida English

Thunder is said in English, as follows:

Thunder is an English word, which is mainly used as a noun and verb. When it is used as a noun, it translates into "Lei; Thunder; Intimidation "; When used as a verb, it is translated into "vi". Thunder; Rage; Send it out with a bang; Shout it out. Example: Thunder rumbled in the distance. Thunder rumbled in the distance.

Extended data:

1, Introduction to Thunder

Thunder is a natural phenomenon. When it rains, some clouds in the sky are positive and some are negative. When two kinds of clouds meet, they will emit lightning and a lot of heat, which will make the surrounding air heat and expand. Instantly heated and expanded air will push the surrounding air and produce strong explosion vibration. This is thunder.

2. Formation conditions

Lightning is a discharge phenomenon in thunderstorm clouds. Thunderstorm clouds generally have two conditions, sufficient water vapor and strong convection. In winter, because the air is cold and dry, the solar radiation is weak, and convection is not easy to form in the air, so lightning is rare.

But sometimes when the temperature is high in winter, it will form thunderstorm clouds, leading to lightning and rain and snow. Convection is particularly strong, and it can also form hail, which will produce the weather phenomenon of "thunder in winter". Knowing these reasons, it is not surprising that it thunders in winter.

3. reasons

Thunderstorms are caused by strong convection of warm and humid air in some places. The sharp rise of warm air produces the violent vibration of cumulonimbus clouds, which will accumulate a lot of charges and produce lightning.

When the air is extremely unstable, it is easy to have strong upward convection and form towering cumulonimbus clouds. Clouds are full of water vapor running up and down, which will generate static electricity. The upper end of the cloud will produce positive charge, the lower end of the cloud will produce negative charge, and the ground is negative charge, although there is a voltage difference between the two negative charges;

However, there is air as an insulator between the two negative charges, and discharge cannot occur. If the voltage difference between the two negative charges is large enough to break through the air of the insulator, the air will instantly expand and explode, releasing heat and light. Light is lightning, and the loud noise of expansion and explosion is thunder.