Keywords
caucasians, clipboard, complexity, equation, experiment, eyeglasses, formula, image source, in front, indoors, intelligence, lab coat, lab technician, laboratory, looking at camera, male, man, mathematics, mature adult, mature man, numeral, one mature man, one person, paper material, research, science, scientist, serious, studio shot, testing, white background, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, ie364-098, ie364 098, ie364098