Back in the gory days of the second world war in 1941, two individuals who left Germany to come to the United States, invented something that would change the way we communicate.

One was the American music composer, George Antheil. The other was the stunning actress Hedy LaMarr, who was considered "the most beautiful woman in the world" of her times.

Hedy LaMarr and George Antheil met in the US and became friends.

A beauty with brains, Hedy conceived an idea to guide torpedoes by sending required information across multiple radio frequencies in a random pattern.

The pattern would be received and re-formatted into an intelligible message.

But, in order to accomplish her idea, the transmitter and receiver needed to operate in complete synchronisation. Now, synchronisation is the basic element of music composition.

So, Hedy approached Antheil and explained her idea to him. Antheil in turn developed a method for a transmitter and a receiver to remain in synchronisation.

Initially, this idea was simply called a "Secret Communications System". It was patented in 1942 and given to the US government.

Since this system was built on the foundation of friendship, neither Hedy LaMarr nor George Antheil wanted any money for their invention, they simply wanted to help the war efforts. The US Navy, however, did not take the concept seriously.

In 1962, the US government implemented the idea of transmitting information across a spectrum of radio frequencies and reassembling the same as a secure radio transmission.

This technology was called "spread-spectrum." It is used today throughout the US military faculties for secure communication.