Purposefully fudged schematics
cclist at sydex.com
Thu Jan 4 21:46:53 CST 2007
To be certain, some errors/additions are deliberate; Rand McNally
generally sprikles a few non-existent landmarks in their maps;
Google satellite maps have "watermarks" that can be very confusing.
I spied what looked to be clearing on some of my forested land and
hiked to the very spot and found--trees, just like everywhere else.
It took some conferring with a USGS employee to discover that what I
thought was a clearing was a rather subtle watermark (viewed in just
the right way, you can make out a "Go".
On the other hand, we've gotten very spoiled. Go to the Univac 7900
operation documents in bitsavers and you'll discover that their
biquinary-to-decimal table counts 1, 2, 2, 4, 5, 6, 7, 8, 9...
Incidentally, the 7900 used magnetic core pulse logic, so it's an AC-
coupled system (tying two threads together again!). The
aforementioned manual is very long but makes interesting reading, if
you're into that sort of stuff. The assembler turns out to be
written by some joker named Knuth...
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