Advantages and disadvantages of lightning

First of all, the benefits of lightning

1. Lightning is a pollution-free energy source.

Lightning can release 1 billion to 1 billion joules at a time. With this huge impact, the foundation can be loosened, thus saving a lot of energy for construction projects. According to the principle of high-frequency induction heating, the high temperature generated by lightning can expand the water in the rock, thus breaking the rock and mining the ore.

2. Lightning can cure diseases.

After lightning is introduced into the ground, the number of negative oxygen ions in the air per cubic centimeter can reach more than 1000, while in sunny days, there are only dozens of negative oxygen ions in urban areas. Experiments show that negative oxygen ions are called "vitamins in the air" and are very beneficial to human health. In addition, when lightning strikes, strong photochemical action will also cause some oxygen in the air to react and generate ozone with bleaching and sterilization effects.

3. Lightning can make nitrogen fertilizer.

When lightning strikes, the lightning passage in the atmosphere can reach several kilometers long and the temperature is extremely high. A large amount of nitrogen is oxidized to form nitrogen dioxide, and the generated nitrogen dioxide is dissolved in rainwater and becomes low-concentration nitric acid, which falls into the soil and combines with other substances to form saltpeter.

4. Lightning exploration.

Lightning strikes easily conductive objects, which provides clues for geological prospectors to find metal deposits.

Second, the disadvantages of lightning

1, the high voltage effect of lightning current will produce impulse voltage as high as tens of thousands of volts or even hundreds of thousands of volts. Such a huge voltage will instantly impact electrical equipment, which is enough to break through insulation, short-circuit the equipment and lead to direct disasters such as combustion and explosion.

2. The high heat effect of lightning current will release tens of thousands of amperes of powerful current and generate a lot of heat energy. The heat at the lightning point will be very high, which will lead to metal melting and fire explosion.

3. The mechanical effect of lightning current is mainly manifested in the explosion, distortion, collapse and tear of the struck object, resulting in property losses and casualties.

4. The electrostatic induction of lightning current can induce a large amount of charge on the conductor of the struck object, which is contrary to the nature of lightning. When lightning disappears before it can disperse, high voltage discharge will occur, which will lead to fire.

5. The electromagnetic induction of lightning current will produce a strong alternating electromagnetic field around the lightning strike point, and the induced current can cause local overheating of the transformer and lead to fire.

6. The invasion of lightning waves and the high-voltage counterattack of lightning protection devices on buildings will also cause open-circuit combustion of power distribution devices or electrical lines, leading to fires.