Search results
Results From The WOW.Com Content Network
A lightning strike or lightning bolt is a lightning event in which an electric discharge takes place between the atmosphere and the ground. Most originate in a cumulonimbus cloud and terminate on the ground, called cloud-to-ground (CG) lightning.
Lightning strikes are grouped into four categories: direct strikes, side splash, contact injury, and ground current. [1] Direct strike: lightning directly hits the person Orifice entry: may occur if lightning strike occurs near the head entering eyes, ears and mouth to flow internally
Since the 1970s, [143] researchers have attempted to trigger lightning strikes by means of infrared or ultraviolet lasers, which create a channel of ionized gas through which the lightning would be conducted to ground. Such triggering of lightning is intended to protect rocket launching pads, electric power facilities, and other sensitive targets.
A ground current, the electricity that flows through the ground away from the point where lightning strikes, puts anyone nearby the strike at risk of shock. Ground currents affect a much larger ...
The lightning may be too far away to discern individual flashes. Smooth channel lightning is an informal term referring to a type of cloud-to-ground lightning strike that has no visible branching and appears like a line with smooth curves as opposed to the jagged appearance of most lightning channels. They are a form of positive lightning ...
Fulgurites are formed when lightning strikes the ground, fusing and vitrifying mineral grains. [7] The primary SiO 2 phase in common tube fulgurites is lechatelierite, an amorphous silica glass. Many fulgurites show some evidence of crystallization: in addition to glasses, many are partially protocrystalline or microcrystalline.
This gives Lake Maracaibo the highest number of lightning strikes per square kilometer in the world, at 250. [6] The region with the second-most is the village Kifuka, in the mountains of the Democratic Republic of the Congo, [7] where the elevation is around 1,700 metres (5,600 ft), receives 232 lightning strikes per square kilometer (600 per ...
The lightning rods are linked to insulated cables that run underground, directing the electrical discharge safely into the ground. When lightning strikes the Eiffel Tower, the lightning is ...