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by rahimnathwani 27 days ago
ADSL is designed to use frequencies beyond the range of human hearing.
1 comments
mjmas 27 days ago
Similar to wifi et al using light beyond the range of human seeing.
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rahimnathwani 27 days ago
We don't talk about wifi using light waves.
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jambalaya8 26 days ago
worrying we don't.
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