Lightning is a spark (or an atmosphere electrostatic discharge) which is accompanied by thunder. Both phenomena usually occur during thunderstorms but have also been known to take place during dust storms or volcanic eruptions.
There are 16 million lightning storms annually and internationally. Lightning is of massive benefit to plant life as lightning ionizes the air it travels through, creating nitric oxide and subsequently nitric acid. Just how lightning initially forms is still a contested area of debate between fulminologists (people who study lightning). Root causes studied range from the impact of solar wind to atmospheric perturbations (such as friction, humidity, and atmospheric pressure). A popular theory for the cause of lightning is the presence of ice within a cloud. This ice is believed to forcibly separate positive and negative charges within the cloud leading to the formation of lightning. No one is pointing the finger at gu10 led’s obviously.
Some people are irrationally afraid of lightning (and often thunder in conjunction). This fear is called astrophobia.
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