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How to pronounce lightning English
Phrases:
Lightning protection methods; Lightning and lightning; Blame; Lightning strike Lightning strike (equal to lightning strike); Lightning strike; Lightning rod lightning rod; Lightning ball
Example:
1, lightning struck the tree, causing it to catch fire. Lightning struck the tree and caused it to catch fire.
He ran at lightning speed to catch the train? He ran to catch the bus at lightning speed.
Cheetah can run at lightning speed. Cheetahs can run at breakneck speed.
Extended data:
Lightning is a strong discharge phenomenon between clouds, between clouds and the ground, or between different parts of clouds (usually in cumulonimbus clouds). Between the positive and negative charge layers of thunderstorm clouds, when the electric field intensity is large enough, lightning will be generated.
Usually, storm clouds (cumulonimbus clouds) will generate charges, with negative charges at the bottom and positive charges at the top, and the ground will also generate positive charges, which will move with the clouds. Positive and negative charges attract each other, but air is not a good conductor.
Positive charges rush to tree tops, hills, tall buildings and even human bodies in an attempt to meet negatively charged clouds; The negatively charged dendritic antenna extends downward, and the farther it extends, the closer it is to the ground. Finally, the positive and negative charges finally overcome the air barrier and connect. A huge current rushed from the ground to the clouds along the conductive path, producing a bright flash.
The length of lightning may be only a few hundred meters (the shortest is 100 meters), but the longest is also several kilometers. The temperature of lightning varies from 17000 degrees Celsius to 28000 degrees Celsius, which is 3 ~ 5 times the surface temperature of the sun. The extreme heat of lightning caused the air along the way to expand violently. Air moves very fast, so waves are formed and sounds are made.
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