Sound amplification by stimulated emission of radiation the axes of the mirrors, it is possible for photons to repeat multiple reflections and force more and more photons to follow them producing an avalanche effect. The number of photons of this coherent laser beam increases and competes the number of photons perished due to losses. The basic necessary condition for the generation of a laser radiation is the population inversion, which can be achieved either by exciting atoms and inducing percussion or by external radiation absorption. A SASER device mimics this procedure using a source-pump to induce a sound beam of phonons. This sound beam propagates not in
A Sound of Thunder (band) feels like it flies by in hail of harmony, wailing vocals, and addictive riffs. Despite the wealth of melody and energetic feel of the record, A Sound of Thunder did not short change the listener on substance or depth. Every track feels like a mini-masterpiece unto itself. Each spin through the album reveals more details and invites another journey through. Every individual performance is on point, and while they all shine on their own, it is in the collective that they ascend to something greater. While the band may not see it as such, It Was Metal is A Sound