Besides linear lightning, there are other types of lightning, such as ribbon lightning, ball lightning and bead lightning. Strip lightning is similar to linear lightning, except that the bright channel is very wide and looks like a wide bright band. Spherical lightning usually occurs after linear lightning. It is a fireball with a diameter of about 20 cm, emitting red or orange light, and occasionally emitting beautiful green. Spherical lightning usually lasts for a few seconds. Fireballs drift in the air with the wind, like to slide along the edge of objects, and can also enter the room through gaps. When the ball lightning is about to disappear, it will hiss and make a deafening explosion. 1962 On the evening of July 22nd, several meteorologists were working on the top of Mount Tai when suddenly there was a loud noise. A crimson fireball with a diameter of about 15 cm suddenly broke into the west wing from the window, floated lightly indoors at a speed of 2 ~ 3 m/s, and escaped through the chimney after a few seconds. At the moment it left the chimney, there was an explosion, which put out the indoor oil lamp and shattered the thermos bottle. The fireball left burnt marks on the sheets and the chimney was damaged.
Among all kinds of lightning, bead lightning is the rarest, which most people in the world have never seen. Eight kinds of lightning are shaped like a string of shining pearls, extending from the bottom of the cloud to the ground. 1916 on may 8, 2006, spherical lightning appeared over a bell tower in Dresden, Germany. Many people saw it and recorded it. People first saw a linear lightning coming from under the cloud and hitting the bell tower; Later, people saw that the channel of linear lightning widened and the color changed from white to yellow. Soon, the lightning channel gradually darkened, but the whole channel did not darken evenly at the same time, so the bright channel became a string of pearl-like bright spots hanging at the bottom of the cloud, which was beautiful and moving. It is estimated that there are 32 bright beads, each with a diameter of 5 meters, and the connection between the bright beads is faintly visible. After that, the bright beads gradually shrink and become round in shape; Finally, the brightness is getting darker and darker, and finally it is completely extinguished.
Because of the rare occurrence and short maintenance time of combined bead lightning, people have little research on the causes of this lightning, and the reasons for its formation are still unclear.