Upon the Production of Sound by Radiant Energy (Classic Reprint): Paper Read Before the National Academy of Sciences, April, 21, 1881: Paper Read ... Sciences, April, 21, 1881 (Classic Reprint) - Softcover

Inhaltsangabe

Explore how light can carry sound in new, surprising ways. This compact volume presents Alexander Graham Bell’s 1881 lecture on radiophony, including the photophone concept and experiments that translate light into audible tones. It offers a clear look at how intermittent beams, spectrum work, and inventive receivers can reveal sound in solids, liquids, and gases.

- Learn the basic idea of turning radiant energy into sound and the key early experiments
- See how different substances affect audible results across the spectrum
- Understand the evolution from spectroscope ideas to practical sound-reproducing devices
- Get a sense of the scientific process, including viewing limits, partial results, and ongoing questions

Ideal for readers curious about the origins of light-based sound transmission and the people who helped propel early photophone research.

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