Ключевые слова: attract, attraction, black, chemistry, contour, design, dust, electric, electromagnet, electromagnetic, element, equipment, experiment, field, filled, force, formula, horseshoe, icon, illustration, impact, isolated, line, magnet, magnetic, magnetism, motor, negative, north, object, outline, physics, pictogram, polarity, power, property, radiation, science, sign, silhouette, south, spectrum, symbol, technology, thin, water, waves, web, white,