Technology advanced from the telegraph, but how did it work? Did you know they tried using compasses? What about error correction? Did you know Thomas Edison figured out a way to transmit 4 independent telegraph conversations on a single wire? We promise you will be surprised to learn how the telephone evolved from the telegraph.

In this episode:

• Serendipitous user interfaces
• Deep dive on the electromechanical telegraph
• Morse code
• Failure rates and probability
• Overseas telegraph parties
• Multiple telegraph conversations on a single wire
• Frequency division multiplexing
• Mirrors and threads
• How Thomas Edison got rich
• Duplex vs. half duplex vs. simplex
• The accidental invention of the telephone