Lightning is not common to people. How many times does lightning strike the earth every minute?

The earth is so big that it will always appear? Sunrise in the east and rain in the west? ; It's sunny here, and it may be thundering on the other side of the earth. So how many times does lightning happen every minute on the earth? According to scientists' calculations, there are 100 lightning strikes every second on average in the world, which means lightning strikes the ground. But every minute, there are actually more than 6000 lightning and 1000 thunderstorms around the earth. Fortunately, most of these lightning and thunderstorm activities only happen in the clouds, otherwise we will? Electrocution? Yes

1. What is lightning? Lightning is a strong discharge phenomenon between clouds, between clouds and the ground, or between different parts of clouds. The length of lightning may be only a few hundred meters, the shortest is 100 meter, 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.

2. Why does lightning happen? Lightning usually generates charge from storm clouds (cumulonimbus clouds), with negative charge at the bottom and positive charge at the top, and also generates positive charge on the ground, which moves 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.

3. Precautions for Thunderstorm Weather More than two-thirds of lightning victims were attacked outdoors. So in lightning weather, stay indoors first; If you are outdoors, don't stand under the big tree; Don't let yourself be the tallest object around; Put down all metal objects; Don't ride a bike; Don't use telephones, water pipes or electrical appliances that need to be plugged in. In addition, if you are indoors, stay away from doors, windows, heaters, stoves and chimneys.

The safest place in the house is the center of the largest room downstairs.

Finally, lightning rods should be installed in the highlands to ensure safety.