電信の発明
How did people talk before cell phones? | History Remade with Sabrina
マルコーニ - 無線通信の歴史
The First Ever Wireless Hack: Marconi vs Maskelyne
The Machines That Built America: Tesla & Marconi Race to Wireless Tech | History
電信の進化 1791 - 2020 |電信の歴史、ドキュメンタリービデオ
肯定的なフィードバック: エドウィン「ハワード」アームストロング最初の偉大な発明!
歴史 101 - ワイヤレス
Morse Code
Constructing the First Underwater Telegraph | The Engineering that Built the World (S1)
Guglielmo Marconi and the Invention of Wireless Communication
Ask History: Who Really Invented the Light Bulb? | History
Wireless Telegraphy
The Machines That Built America: Alexander Graham Bell’s Revolutionary Invention (S1) | History
Wireless telegraphy
The Telegraph People Values
A Century of Chairmen: a roll-call of Cable & Wireless chairmen, from 1872 to 1980
What's That Infrastructure? (Ep. 5 - Wireless Telecommunications)
History of Communication in animation
Cable and Wireless - The History of Trans-Oceanic Communication