Hedy Lamarr. Wi-Fi connection algorithm

Hedy Lamarr is the pseudonym of the Austrian actress Hedwig Eva Maria Kiesler adopted by her after moving to Hollywood in 1937. In the 1930s-1950s Lamarr starred in more than 20 films and at the same time she tried to invent different things, for instance, to upgrade a traffic stoplight or to create a tablet that would turn water into a carbonated drink. During World War II willing to contribute to the US army, Hedy Lamarr invented and described a safe way of transmitting signals to be used by radio-controlled torpedoes. To protect the signals against interception and jamming Lamarr suggested “hopping frequencies” that would constantly and randomly change in both a receiver and transmitter. George Antheil, an avant-garde composer, was her co-author. On August 11, 1942 they were granted a patent for “secret communication network”, one of the principles behind today's Wi-Fi and Bluetooth technology. Hedy Lamarr’s birthday (the 9th of November) is now celebrated as the Inventor’s Day in Austria, Germany and Switzerland.