This chapter talks about how Thomas Edison got deaf. But at first, he had hearing problems. He had a hard time hearing when he was a child. The infection moved from his eyes to his ears. When he moved his lab to a train cart, one day a jar of phosphorus broke and when had contact with air, it exploded. The train conductor and Tom barely managed to put the fire out. The conductor whipped Tom on the ear and Tom's ear was worse.

Becoming Deaf