- Lightning is a massive sudden flow of electricity between the electrically charged regions within or between the cloud and the surface of a planet.
- Lightning may occur in three ways: from a cloud to itself; from a cloud to another cloud; between a cloud and the ground.
- Lightning primarily occurs when warm air is mixed with colder air masses resulting in atmospheric disturbances necessary for polarizing the atmosphere.
- Lightning also occurs in volcanic eruptions, tornadoes, forest fires, dust storms and occasionally in Hurricanes where it is generated in small quantity.
- Fulminology is known as the science of lightning.
- Astraphobia is the fear of Lightning.
- Lightning is usually produced by cumulonimbus clouds
- Thunder is a loud rumbling noise caused by the rapid expansion of air suddenly heated by lightning
- Lightning occurs most often on the earth in a small village of Kifuka in the mountains of the eastern Democratic republic of Congo.
- Lightning can also be initiated or triggered artificially when positively charged structures on the ground such as towers on mountains that have been inductively charged by the negative cloud layer above.
- The average temperature inside the lightning channel is about 20,400K (20,100oC, 36,300oF). But the core of the temperature of the plasma during the return stroke may exceed 50,000K causing it to radiate brilliantly between blue-white colour.
- An average bolt of negatively charged lightning carries an election currents of 30,000amperes (30KA), and transfers 15 coulombs of electric charge and 500 mega joules of energy. Large bolts of lightning can carry up to 120KA and 350 Coulombs.
Wednesday, 7 May 2014
Lightning
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Education
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