A thunderbolt's a traditional expression for a discharge of lightning or a symbolic representation thereof. In its original usage the word may also have been a description of meteors, although this isn't currently the case. As a divine manifestation it's been a powerful symbol throughout history, and has appeared in many mythologies. Drawing from this powerful association, the thunderbolt's often found in military symbolism and semiotic representations of electricity. Lightning plays a role in… (More on Thunderbolt)