Ключевые слова: abstract, black, concept, design, discover, discovery, equipment, eye, find, focus, glass, grunge, human, icon, idea, illustration, ink, instrument, isolated, learning, lens, look, magnification, magnify, observation, observe, ocular, old, optical, optics, paper, people, planetarium, resource, science, scope, search, sign, silhouette, sky, space, spy, spyglass, stars, sticker, symbol,