Direct lightning strike is a rapid discharge phenomenon between charged clouds (Lei Yun) and buildings, other objects, the earth or lightning protection devices, which causes a series of destructive effects such as electrical effect, thermal effect or mechanical force.
Induction lightning is also called lightning induction or induced overvoltage. It can be divided into electrostatic induction lightning and electromagnetic induction lightning.
Spherical lightning is spherical lightning, commonly known as rolling thunder, a kind of lightning, which usually occurs in thunderstorm weather and is a spherical lightning ball. Spherical lightning is bright and slightly spherical, with a diameter of about 15 ~ 30 cm. Usually it lasts only a few seconds, but there are also 1-2 minutes. In addition to the common orange and red, there are rings of blue, bright white and dark green. Fireballs come in all kinds of colors. In 20 14, Chinese scientists released the video of spherical lightning that first appeared in thunderstorm weather in 20 12, and lightning traveled 15 meters on the ground.