A thunderbolt or lightning bolt is a symbolic representation of lightning. It appears variously in history, literature, and in contemporary warnings of (typically high-voltage) electricity. Thunderbolts may appear naturally among the estimated 8.6 million lightning strikes per day - equal to 100 strikes per second - or not: heat lightning is an electrical discharge in the atmosphere without an accompanying sound, and a Tesla coil produces an artificial "lightning"-like electrical discharge with an accompanying clap.
https://en.wikipedia.org/wiki/Thunderbolt
A thunderbolt or lightning bolt is a symbolic representation of lightning. It appears variously in history, literature, and in contemporary warnings of (typically high-voltage) electricity. Thunderbolts may appear naturally among the estimated 8.6 million lightning strikes per day - equal to 100 strikes per second - or not: heat lightning is an electrical discharge in the atmosphere without an accompanying sound, and a Tesla coil produces an artificial "lightning"-like electrical discharge with an accompanying clap.
