Science experiments test tube knowledge discovery desktop wallpaperScience experiments test tube knowledge discovery desktop wallpaper
Images of the movement of the space of science in bright colorsImages of the movement of the space of science in bright colors
The reflection of rapid movement in science was embodied in manThe reflection of rapid movement in science was embodied in man
Technology of the future. super heroes. science in our livesTechnology of the future. Super heroes. Science in our lives
Система знаний о закономерностях в развитии природы, общества и мышления, а также отдельная отрасль таких знаний. То, что поучает, даёт опыт, урок (в 4 знач.; разг. ).