Framed Print : Carbon microphone, invented in 1878 by David Edward Hughes, 1890
Framed Photos from Heritage Images
Carbon microphone, invented in 1878 by David Edward Hughes, 1890
Carbon microphone, invented in 1878 by David Edward Hughes, 1890. The apparatus was said to be so sensitive that a fly walking on the sounding-board could be heard by an observer on a telephone several miles away. From Electricity in the Service of Man translated by R Wormell from the German of Alfred von Urbanitzky. (London, 1890)
Media ID 14846427
© Ann Ronan Picture Library / Heritage-Images
Carbon Electric Electricity Hughes Innovation Invention Microphone Sound
12"x10" Modern Frame
10x8 Print in an MDF Wooden Frame with 180 gsm Satin Finish Paper. Glazed using shatter proof thin plexi glass. Frame thickness is 1 inch and depth 0.75 inch. Fluted cardboard backing held with clips. Supplied ready to hang with sawtooth hanger and rubber bumpers. Spot clean with a damp cloth. Packaged foam wrapped in a card.
Contemporary Framed and Mounted Prints - Professionally Made and Ready to Hang
Estimated Image Size (if not cropped) is 25.4cm x 25.4cm (10" x 10")
Estimated Product Size is 30.5cm x 25.4cm (12" x 10")
These are individually made so all sizes are approximate
Artwork printed orientated as per the preview above, with landscape (horizontal) or portrait (vertical) orientation to match the source image.
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