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Michael Pupin

communication
Michael Pupin solving the Problems of long-distance Communication

Michael Pupin solving the Problems of long-distance Communication

Harald Sack
On October 9, 1858, Serbian American physicist and physical chemist Michael Pupin was born, who is best known for his numerous patents, including a means of greatly extending the range of long-distance telephone communication by placing loading coils (of wire) at predetermined intervals along the transmitting wire (known as “pupinization“). “We would never get away from it. … It’s bad enough as it is, but with the wireless telephone one could be…
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engineering
Edwin Armstrong and Frequency Modulation

Edwin Armstrong and Frequency Modulation

Tabea Tietz
On December 18, 1890, American electrical engineer and inventor Edwin Howard Armstrong was born. Armstrong is best known for developing FM (frequency modulation) radio. He held 42 patents and received numerous awards, including the first Medal of Honor awarded by the Institute of Radio Engineers. Early Years Edwin Armstrong was the first of three children of John Armstrong and Emily Smith Armstrong. His father was a representative of the US branch of…
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