At the cutting edge of Hi-Tech
August 12 1877 Thomas Edison, the 30 year old wizard of new technology, is on the brink of developing his first wholly original invention.
A small group of people gather at Edison’s “Invention factory” at Menlo Park New Jersey, to witness a public demonstration of the new device – a phonograph which records the human voice.
They listened dumbfounded to a recording of Edison reciting “Mary had a little lamb”
The phonograph has been ingeniously adapted from the telephone repeater; a telephone diaphragm connects to an embossing needle which impresses on a suitable material the variations of the human voice.
Do you our readers have any comments on the quality of reproduction of sound that comes from playing vinyl records versus CD?