Ключевые слова: attract, attraction, background, black, blue, concept, design, education, electric, electromagnetic, element, energy, equipment, field, flat, force, graphic, gravitation, gravity, horseshoe, icon, idea, illustration, iron, isolated, lightning, line, magnet, magnetic, magnetism, magnetize, metal, north, object, physics, polarity, pole, power, red, school, science, shape, sign, south, steel, symbol, technology, tool, white,