Ключевые слова: architecture, atom, background, backgrounds, biology, blue, bomb, chemistry, coal, computer, danger, education, electricity, electron, energy, environment, factory, fossil, fuel, generation, graphic, hydrogen, illustration, industry, molecular, nature, nuclear, nucleus, particle, physics, picture, pollution, power, proton, radiation, reactor, research, science, scientist, sphere, stacks, station, steam, structure, supply, symbol, technology, two,