Alexander Graham Bell invented the telephone and then refused to have one in his study. He considered it an intrusion, a distraction from the work that actually mattered to him — teaching the deaf, experimenting with flight, and pursuing the scientific questions the telephone’s commercial success had interrupted. The device that made him famous was, in his view, his least interesting achievement.

This episode traces Bell from his family’s work with the deaf through the invention that changed human communication, the patent wars that followed, and the decades of post-telephone research into hydrofoils, aviation, and genetics that he found far more fulfilling.

• Bell’s family background in deaf education and the work that led to the telephone
• The patent race with Elisha Gray and the controversy that has never fully been resolved
• Why Bell considered the telephone a nuisance and banned it from his personal workspace
• The post-telephone decades — hydrofoils, aviation experiments, and work with the deaf community