Wheatstone introduced his 'kaleidophone', a device for rendering the vibrations of a sounding body apparent to the eye
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Wheatstone introduced his 'kaleidophone', a device for rendering the vibrations of a sounding body apparent to the eye
Text from Wikipedia, available under CC BY-SA 4.0.
Captured 2026-08-18 from Wikipedia. The archived copy is preserved so this citation survives link rot.