Telegraph, telephone, radio - And where did it all begin? Different stories, different countries and continents. Here the black tribe in Africa sends sounds with tambourines and drums. Here is a knight jumping on a horse, wants to get ahead of time and sends the news, attached to the faster-winding arrow shot from the bow. Here smoke fire signals. Here are the first tests using electricity. Wires, radio - now all shrouded in invisible waves, and the limit of perfection is not expected.