[GreenKeys] OT: Teletypes, Telephone & Railroads

[John Hensley]

Maybe its a two thing: two wires, two rails ... i.e. what can you do over two wires or two rails ... I know that for years private offices had their ASR's running off a telephone modem of sorts as did Telegram Offices.  I suppose the railroads did the same (use existing telephone lines).  
... semaphore is two flags ...  the first telegram delivery vehicle was on two feet until the bicycle was needed (two wheels) ... morse and baudit both pattern their language after two components (one short, one long) ... and there were, by the way, two signal lamps hanging in the Boston tower alerting locals that the British were detected on the sea route ... 

>>>http://dvice.com/archives/2009/03/astonishing_mos.php

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