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Lightning is a natural phenomenon, more specifically an atmospheric electrical phenomenon. It consists of electrostatic discharges occurring through the atmosphere between two electrically charged regions, either both existing within the atmosphere or one within the atmosphere and one on the ground, with these regions then becoming partially or wholly electrically neutralized.
The word comes from the French éclair, meaning 'flash of lightning', so named because it is eaten quickly (in a flash); [5] however some believe that the name is due to the glistening of the frosting resembling lightning.
[48]: 2 The most visible natural occurrence of this is lightning, caused when charge becomes separated in the clouds by rising columns of air, and raises the electric field in the air to greater than it can withstand. The voltage of a large lightning cloud may be as high as 100 MV and have discharge energies as great as 250 kWh.
“Lightning can travel through plumbing,” the CDC said. “It is best to avoid all water during a lightning storm. Do not shower, bathe, wash dishes, or wash your hands.”
The Semitic root B-R-Q has the meaning "to shine"; "lightning". [1]: p.122 The biblical name ברק Bārāq is given after Barak, a military commander who appears in the Book of Judges. The Arabic cognate is بَرق barq (not to be confused with بَارَك bārak, which is cognate with Hebrew בָּרוּךְ bārûch).
What is the purpose of lightning? That might sound like a deeply philosophical question, but scientists may have shed some more light on the answer with the results of a recently released study.
Lightning interferes with amplitude modulation (AM) radio signals much more than frequency modulation (FM) signals, providing an easy way to gauge local lightning strike intensity. [34] To do so, one should tune a standard AM medium wave receiver to a frequency with no transmitting stations, and listen for crackles among the static. Stronger or ...
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