Photo Mug : Carbon microphone, invented in 1878 by David Edward Hughes, 1890
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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
Photo Mug
A personalised photo mug blends sentimentality with functionality, making an ideal gift for cherished loved ones, close friends, or valued colleagues. Preview may show both sides of the same mug.
Elevate your coffee or tea experience with our premium white ceramic mug. Its wide, comfortable handle makes drinking easy, and you can rely on it to be both microwave and dishwasher safe. Sold in single units, preview may show both sides of the same mug so you can see how the picture wraps around.
Mug Size is 8cm high x 9.5cm diameter (3.1" x 3.7")
These are individually made so all sizes are approximate
MADE IN THE UK
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* Options may vary by product and licensing agreement. Zoomed Pictures can be adjusted in the Cart.