'Well into WWI, it was the animal alternative to Marconi's system for sending wireless long-distance messages'
pigeons
LET'S COMMUNICATE: Well into WWI, it was the animal alternative to Marconis system for sending wireless long-distance messages
Well into WWI, it was the animal alternative to Marconi's system for sending wireless long-distance messages
Well into WWI, it was the animal alternative to Marconi's system for sending wireless long-distance messages
LET'S COMMUNICATE
pigeons
LET'S COMMUNICATE