If you’ve ever listened to a shortwave radio you may have heard the strange creepy numbers stations just calling out numbers in synthesized voices with little tunes introducing and ending them. What is its purpose? and why are they still being used 70+ years after began to be heard? Are they calling out to spies and embedded agents around there world or are they just a relic of the cold war, in this video we look at the mysterious numbers stations.
This video is sponsored by Brilliant.org :