CardiffCardiff (prononcé en anglais), ou Caerdydd (prononcé et en gallois), officiellement la cité et comté de Cardiff (City and County of Cardiff en anglais) et de Caerdydd (Dinas a Sir Caerdydd en gallois) est une zone principale du pays de Galles, au Royaume-Uni. Située dans le sud-est du pays de Galles, elle constitue la capitale de la nation constitutive depuis 1955. Avec ses , Cardiff est la onzième cité la plus peuplée du Royaume-Uni selon le recensement de 2011.
LavernockLavernock (Larnog) is a hamlet in the Vale of Glamorgan in Wales, lying on the coast south of Cardiff between Penarth and Sully, and overlooking the Bristol Channel. Following overland tests at Salisbury Plain during March 1897, on 13 May 1897, the Italian born and recently British based inventor, best known for his development of a radiotelegraph system, Guglielmo Marconi, assisted by George Kemp (who was a Cardiff based Post Office engineer) transmitted and received the first wireless signals over open sea between Lavernock Point and Flat Holm island.
Severn BarrageThe Severn Barrage is any of a range of ideas for building a barrage from the English coast to the Welsh coast over the Severn tidal estuary. Ideas for damming or barraging the Severn estuary (and Bristol Channel) have existed since the 19th century. The building of such a barrage would constitute an engineering project comparable with some of the world's biggest. The purposes of such a project have typically been one or several of: transport links, flood protection, harbour creation, or tidal power generation.
