The universe. Reflecting telescopes. Radio astronomy. The astronomer explores space.The earth. The trembling of the earth. The work of glaciers. Floating ice islands. Plant life. Propagation of plants. Animal life. Apes, monkeys and their kin. Game and bird sanctuaries. Animal migrations. Man. An introduction to psychology. Health. On the microbe´s track. The grim white plague. Healing sick minds. Mathematics. The electronic computer. Matter and energy. Seeing the hitherto invisible. Atomic energy. Atom smashers. The geiger-mueller counter. Electroluminescence. Perils of the atomic age. The transistor. Industry. Miniaturized design. The radiation thickness gauge. The power of the air. Electricity for man. The baking industry. Transportation. Those mysterious flying saucers. Communication. Radr. The versatile art of photography. Science through the eges. Twentieth century (1895 - ). Projects and experiments. Collecting minerals and reocks. making a reflecting telescope.