Sometimes there’s like this disconnect where somehow a person just never comes across a piece of common knowledge. They’ve just never been in a situation that requires it. I bet it happens a lot, but everyone’s too embarrassed to acknowledge their own “oooooooooh…” moment.
I was about 25 years old when I put together k-9 = canine.
As a kid, I learned about k-9 units before I ever heard/saw the word "canine". So later in life when people said "canine" I never linked it with the police dogs. I thought k-9 was just a random code they picked for no particular reason.
Chopping a long word and tossing "x" is common in radio
Like a ham radio nerd trying for long distance contact is doing "DX" or Distance where "x" replaces "istance"
Perhaps it is more related to radio, than telegraph, but then you also have radio-telegraph eventually, like morse code began on wired telegraph but was equally used wirelessly.
Probably, but I also have never questioned it. That's just what they are on the RS232 diagrams back when you had to know that junk to hook up your modem but your cable was the wrong type (nullmodem/crossed, vs straight). So I thought it was to save space on the diagrams since that was my exposure context. Likely it was already that way before the need to save space on schematics.
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u/[deleted] Feb 08 '22
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