Ключевые слова: abstract, angle, art, backdrop, background, beam, blue, color, colorful, design, education, element, frequency, futuristic, glass, illustration, laboratory, learning, light, lines, luminosity, mixing, modern, motion, natural oscillation, optical, optics, phenomenon, physics, prism, rainbow, ray, red, refract, refraction, science, scientific, shadows, shape, shapes, spectral, spectrum, style, sunlight, system, triangular prism, visible, wallpaper, white, yellow,