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Lightning is the major natural cause of wildfire, [175] estimated to cause 10% of forest fires worldwide. [176] Wildfire can contribute to climate change. [ 177 ] Because wildfires emit greenhouse gases, and also affect vegetation cover (which affects how much sunlight is reflected), a lightning wildfire feedback is possible.
In sliding friction, [108] when asperities contact ... leading to static charge and lightning. ... This was the cause of a 2017 explosion that killed one and injured ...
Thunderstorm — also electrical storm, form of weather characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder. Triboelectric effect — Type of contact electrification in which objects become electrically charged after coming into contact and are then separated.
[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.
Natural static discharge caused by a lightning strike Small hairs standing up after a thunderstorm, as a result of the left over weak static electricity Main article: Lightning Lightning is a dramatic natural example of static discharge.
The phenomenon is not fully understood but appears in most cases to be caused by the separation and reunification of static electric charges, see also triboelectric effect. The term comes from the Greek τρίβειν ("to rub"; see tribology) and the Latin lumen (light). Triboluminescence can be observed when breaking sugar crystals and ...
Pockels (1897) estimated lightning current intensity by analyzing lightning flashes in basalt (c. 1900) [12] and studying the left-over magnetic fields caused by lightning. [13] Discoveries about the electrification of the atmosphere via sensitive electrical instruments and ideas on how the Earth's negative charge is maintained were developed ...
Speculations of Jean-Antoine Nollet had led to the issue of the electrical nature of lightning being posed as a prize question at Bordeaux in 1749. In 1750, it was the subject of public discussion in France with a dissertation of Denis Barberet receiving a prize in Bordeaux. Barberet proposed a cause in line with the triboelectric effect.