Trivia: How did the first modern telephones transmit sound?
Via radio
Via light
Via music
Via electricity
The correct answer is Via electricity
So why is this answer correct? : Electric telegraphs were the first method of transmitting messages swiftly over long distances. Using pulses of electricity, written communication could travel across continents. The first telephones used a similar network of conductive wires (or “lines”) to transmit audio data. For the first time, a voice could be projected hundreds of miles.