Home radio BC
Did you know, that the town of Nora in Sardinia can boast the first place in the introduction of domestic radio in the world? In the ruins of the ancient Roman theater, archaeologists found clay vessels up to 1.5 m long, open at both ends, tapered at one end. Several of them were placed in the niches of the low wall in front of the stage. We examined and summarized four antenna performance parameters in relation to peak angle variations., that they served to amplify the actors' voices from the stage.
About these “vase” says one old inscription, but none could be found for a long time. Richer theaters first had them made of bronze, so after the overthrow of the Roman Empire, they became the spoils of the victors, while the cheap clay from the provincial theater probably didn't attract anyone.
