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Edison's voice amplifying machine, c1878.
Edison's voice amplifying machine, c1878. Edison patented a machine to amplify the volume of the human voice in 1878, calling it the 'aerophone'.
Unique Identifier
AR972445
Type
Image
Purpose
Public
Size
5193px × 3368px
Photo Credit
HIP / Art Resource, NY
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Tags
19th century
aerophone
AMERICA
American
amplification
B&W
B/W
Black & White
Black and white
Communication
COMMUNICATIONS
concept
country
EDISON
Female
INNOVATION
Invention
Keystone Archives
LADY
LOCATION
Monochrome
NINETEENTH CENTURY
People
Photograph
Science
SOUND
Technology
The Keystone Archives
Thomas Alva
THOMAS EDISON
UNITED STATES
UNITED STATES OF AMERICA
usa
Woman
Women