Tin can telephone being used by a boy. Sound waves are being transmitted along the string to the can, which is being held to the boy's ear. This appar

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Tin can telephone being used by a boy. Sound waves are being transmitted along the string to the can, which is being held to the boy's ear. This apparatus can be used to demonstrate the principles of sound waves and their transmission.

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Size: 4050px × 4551px
Photo credit: © KEVIN CURTIS/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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