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by thaumasiotes
2616 days ago
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> millimeter waves (extremely high frequencies) That sounds weird. It's a much higher frequency than "UHF" ("ultra high frequency"... radio), but the wavelength of red is over a thousand times shorter. I think of "high frequencies" as being UV and beyond. https://www.straightdope.com/columns/read/213/do-photocopy-m... > Xerox machines absolutely ooze radiation |
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