Reginald Fessenden and the Invention of Sonar | Distillations | Science History Institute
“Uncharacteristically, Fessenden compromised. As his wife and biographer, Helen, would later explain, he couldn’t resist the challenge of outwitting “those soundless perils of rock and shoal, of iceberg and fog, dumb agencies of Nature to menace and destroy.” Also, he needed a job.”