Weird triangular thing in Scientific American

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Weird triangular thing in Scientific American

#1  Postby Maury Markowitz » May 21, 2014 11:34 am

Some time in the later bit of the 1980s, perhaps 1990, I was leafing through a copy of Scientific American when I came across a two-page ad for some sort of new numerical tool which was basically a bent triangle with a bunch of lines draw in it. It had lots more likes bisecting and re-bisecting bits of it.

According to the text it was a sort of slide rule (it wasn't) that you could use for practically any mathematical problem. Two examples were given, only one of which I can recall: characterizing explosives by drawing dots on one of the lines.

It was either a hoax or someone with too much money.

Does anyone recall this?
Maury Markowitz
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