This is easy to try, incidentally. Just hum a very low note, then gradually incr... | Hacker News

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pjscott on Nov 11, 2011 | parent | context | favorite | on: "I would dial the 300 baud dial-up number, and scr...

This is easy to try, incidentally. Just hum a very low note, then gradually increase the pitch until you can see the CRT start to look weird.

nemetroid on Nov 12, 2011 [–]

You'd still need to have a pretty low voice for anything under 100 Hz, though.

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