Features
- This Photo Puzzle features an image chosen by Science Photo Library. Estimated image size 356x254mm.
- 10x14 Photo Puzzle with 252 pieces. Packed in black cardboard box of dimensions 5 5/8 x 7 5/8 x 1 1/5. Puzzle image 5x7 affixed to box top. Puzzle pieces printed on RA4 paper at 300 dpi
- Image Description: Bell telephone. Historical artwork of a man using a Bell telephone. In this original telephone system, the speaker and receiver were identical. The speaker consisted of a diaphragm which converted sound waves into an oscillating electric current. The receiver converted the current back into sound waves. This telephone was invented by Alexander Graham Bell (1847-1922) who filed the patent in 1876. However, his priority as absolute inventor
- For any queries regarding this item please contact Science Photo Library c/o Media Storehouse quoting Media Reference 1117484
- Sheila Terry/Science Photo Library
Price:
Product prices and availability are accurate as of the date/time indicated and are subject to change.
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Product Description
Photo Puzzle, Historical artwork of a man using a Bell telephone. Bell telephone. Historical artwork of a man using a Bell telephone. In this original telephone system, the speaker and receiver were identical. The speaker consisted of a diaphragm which converted sound waves into an oscillating electric current. The receiver converted the current back into sound waves. This telephone was invented by Alexander Graham Bell (1847-1922) who filed
