|  |  | 1980 Satellite Recon Photo of Soviet Particle Beam Weapon www.pbs.org — A particle beam weapon is a type of directed-energy weapon that directs a high energy beam of atoms or electrons at a target, and thus causes damage by disrupting the atomic and molecular structure. While the mass of these particles are very low, the ultra high velocity imparts massive momentum.More... (Space) Comments Email Added 2008-02-11 02:48:02 rpi22