Amazingscience

Friday, June 24, 2016

Science behind lightning

We all are familiar with lightning a flash of light which we observe at night during rainy or some stormy cloudy day. So you might have question on what causes the lightning. Well lighting are caused due to the collision of the negative and positive charge. The stormy cloud contains the water molecules and from here due to the movement of storm the positive and negative charge is formed and the negative charge moves from the top to the bottom part of the cloud being heavier and the light positive charge move to the upper part. In this way first the charge separates out. Then the land and the part of the earth also contains both the negative and the positive charge that are neutralize by each other. We know that the positive charge repel each other so the positive charge is form at the upper region. When a suitable amount of the force is developed then this two opposite charge attract each other and we could see a flash of light. This is also called the electric field.
    
       There are many types of the lightning form. The negative lightning is formed when a small invisible negative charge moving with a high speed meet with the streamer which is released from the metallic pointed rod on the top of the house. Their collision produce a very huge amount of temperature.
The positive lightning is formed when a strong electric field is required to meet the charge. They may be 10 times more stronger than negative lightning. They rarely produce rarely brach flash. They also sometime produce a red glow known as sprite due to the high collision. In this way there are also many types of the lightning occur. Due to the lightning collision the high sound is produce. Due to high velocity of the light we observe light first then that of the sound.
      Though we do not observe the lightning during a normal condition but actually the lightning strikes 100 times per sec world wide because the collision occurs every second. A bolt contains upto
100 million volts. Yearly many people on the world lose their lives due to strike of the lightning.

     Hence in this way the lightning has a huge physics hidden inside. If we observe normally we do not find anything amazing except its a natural phenomenon but as we go deeper we see a vast science behind it.

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