Invention of radio and cinema
In 1895, thanks to a number of inventions such as Hertz's receiver and Branly's coherer, Marconi successfully emitted signals with a range of more than three kilometres. In 1901, the first transatlantic radio signal was received. Radio went on to become an essential tool for the army and a means of receiving information and entertainment for households. In 1895, the Lumière brothers staged the first public projection and patented the cinematograph. There followed major innovations such as films with sound (1927) and films in colour (1935).