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In Reply to: RE: I don't know what you are talking about, and I don't think you do. posted by John Marks on April 29, 2016 at 18:35:17
JM-
love your work and writings as always. How does Charlie Hansen fit into any of this matter?
Follow Ups:
Charlie offered constructive criticism as a friend.
I am fascinated by the theoretical aspects of signal-cable design.
The laying of the first transatlantic cable--before the US Civil War, was one of the civil-engineering achievements of the day. But the cable self-destructed from mutual inductance with the surrounding seawater, because the person in charge kept pouring on more power--which meant that the induced current in opposite polarity in the seawater retarded the signal even more.
Queen Elizabeth's message to President Buchanan, 92 words IIRC, took all day to send.
Oliver Heaviside's invention of coaxial cable, which is essentially, surrounding a DC conductor in a Faraday Cage, allowed much faster transmission. Heaviside's years of work are one of the intellectual triumphs of that age. Fascinating stuff.
I was thinking out loud to Charley, wondering why a length differences in inches in the cable made it sound differently, and he replied that a S/PDIF cable should be at least 20 feet long... .
Now THAT's fascinating!
John
> Queen Elizabeth's message to President Buchanan, 92 words IIRC, took all
> day to send.
Victoria, surely.
John Atkinson
Editor, Stereophile
My face is red.
I was so intent in making sure that the US President was right,* I lunched the Brit Monarch.
Yes, Victoria!
Thanks, John
John
*That that predated the US Civil War, I think is really something.
I look forward to your cables, JM. CH notwithstanding.
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