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A comment on What are terahertz waves useful for?. Parent comment

Re:What are terahertz waves useful for? by freyr on Saturday April 02, 2022 @09:21PM (#30893320)
> To be clear: there is NOTHING at all about sound in this article. The spectrum does not show a continuum from sound to light.

Except that a portion of the spectrum graphic is labeled “perceptible sound.” That’s what the OP is referencing.

Perhaps the illustrator is pointing out that the frequency range of these EM waves coincides with frequency range of audible sounds? Or perhaps they’re confused. Either way, there’s no mistaking that the graphic is labeled with the words “perceptible sound.”

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Re:What are terahertz waves useful for? by danielmittleman on Sunday April 03, 2022 @08:18AM (#30896308)
True, but the article is all about electromagnetism, not acoustics. I'm sure the author of the article was not the same person as the person who made the graphics. They probably ought to have communicated with each other a bit more clearly.
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