Lesson plan
DWDD
The DWDD (Domain Wall Displacement Detection) is a media reproducing technology developed by Canon and Sony and first implemented in a commercial product in 2004 as part of Sony's Hi-MD format. The DWDD technology uses a physics phenomenon called domain wall displacement, which shortens the masks but does not need to change the laser beam. With such technology, the density of the magneto-optical disc could be increased dramatically.
Article summary
The DWDD (Domain Wall Displacement Detection) is a media reproducing technology developed by Canon and Sony and first implemented in a commercial product in 2004 as part of Sony's Hi-MD format. The DWDD technology uses a physics phenomenon called domain wall displacement, which shortens the masks but does not need to change the laser beam. With such technology, the density of the magneto-optical disc could be increased dramatically.
Key claims
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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.