Sonar Throwback: Reginald Fessenden and the Fathometer

By A Mystery Man Writer

Fun Fact Friday! The radio sonar is invented by Reginald Fessenden on this day in 1913.

Reginald Fessenden and the Invention of Sonar

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Reginald Fessenden and the Invention of Sonar

Reginald Fessenden and the Invention of Sonar

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