Édouard Branly
Édouard Eugène Désiré Branly (, BRAN-lee; French: [edwaʁ bʁɑ̃li]; 23 October 1844 – 24 March 1940) was a French physicist and inventor known for his early involvement in wireless telegraphy and his invention of the coherer in 1890. == Biography == He was born on 23 October 1844 and died on 24 March 1940.