Why does the sky thunder?
When two clouds with different charges meet or clouds with different charges approach the earth, discharge will occur, which is what we see as lightning. The air is humid and the clouds must be large enough, which are necessary conditions for lightning to occur.
Matters needing attention in lightning
1, don't stay on the platform of high-rise buildings in thunderstorm weather, and don't enter isolated shacks, sentry boxes, etc. In the open air.
2. Stay away from the exposed water pipes, gas pipes and other metal objects and power equipment in the building.
3. It is not advisable to hide under the big tree during a thunderstorm. If necessary, you must keep a distance of 3 meters from your torso, squat down and put your legs together.
4. If there are ants crawling on your head, neck and hands when thunder and lightning strike, and your hair stands on end, it means that lightning is coming. Get down on the ground quickly to reduce the risk of being struck by lightning, and take away the metal ornaments, hairpins and necklaces you wear.