Lesson plan
Phonodeik
The Phonodeik is a sound-recording apparatus invented by Dayton Miller in 1908. The Phonodeik converts sound waves into visual images. The name was suggested by Edward W. Morley. Before electronic oscilloscopes, this device was used for analyzing sound waves. The Phonodeik can be modified to project sound waves on a screen for public demonstration.
Article summary
The Phonodeik is a sound-recording apparatus invented by Dayton Miller in 1908. The Phonodeik converts sound waves into visual images. The name was suggested by Edward W. Morley. Before electronic oscilloscopes, this device was used for analyzing sound waves. The Phonodeik can be modified to project sound waves on a screen for public demonstration.
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
Bibliography
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Key claims and bibliography are generated from the same tracked claims and sources as the article page.