Ключевые слова: abstract, atom, atomic, background, badge, blue, caution, contaminate, danger, deterrent, dirty, disaster, emission, energy, fission, futuristic, hazard, icon, illustration, industrial, light, material, night, nuclear, nuke, physics, plutonium, pollution, power, radiation, radioactive, radioactivity, ray, reactor, research, roentgen, safety, science, sign, sky, space, star, starry, symbol, technology, texture, threat, uranium, warn, waste,