Phonograph invented by Thomas Edison 1878 插畫檔

The phonograph ( in its later forms also called a gramophone ) was invented in 1877 by Thomas Edison. Alexander Graham Bell's Volta Laboratory made several improvements in the 1880s and introduced the graphophone, including the use of wax-coated cardboard cylinders and a cutting stylus that moved from side to side in a zigzag groove around the record.Original edition from my own archivesSource : Correo de Ultramar 1878