Triumphs and wonders of the 19th century, the true mirror of a phenomenal era, a volume of original, entertaining and instructive historic and descriptive writings, showing the many and marvellous achievements which distinguish an hundred years of material, intellectual, social and moral progress .. . the same means, though the word telephone was in early useto describe the transmission of sound by means of a rod or tightly stretchedstring connecting two diaphragms of wood, membrane, or other last plan of transmitting sound came to be known as the string telephone,and it retaine
Triumphs and wonders of the 19th century, the true mirror of a phenomenal era, a volume of original, entertaining and instructive historic and descriptive writings, showing the many and marvellous achievements which distinguish an hundred years of material, intellectual, social and moral progress .. . the same means, though the word telephone was in early useto describe the transmission of sound by means of a rod or tightly stretchedstring connecting two diaphragms of wood, membrane, or other last plan of transmitting sound came to be known as the string telephone,and it retained this name until the invention of the electric telephone. 32 TRIUMPHS AND WONDERS OF THE XIXth CENTURY Like the electric telegraph, the electric telephone was an evolution. Thestring telephone, in the hands of Wheatstone, showed, as early as 1819, thatthe vibrations of the air produced by a musical instrument were very minute,and could be transmitted hundreds of yards by means of a string armed withdelicate diaphragms. But while the string telephone served to confirm thefact that sounds are vibrations of the atmosphere which affect the tympanumof the ear, it remained but a toy or experimental device till after electrictelegraphy became an accepted science, that is, in the year 1837 and subse-.
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Keywords: ., bookcentury1800, bookdecade1890, bookidtri, booksubjectinventions
