From:
Fred Hopengarten K1VR 781/259-0088
Six Willarch Road
Lincoln, MA 01773-5105
permanent e-mail address: fhopengarten@mba1972.hbs.edu
if sending attachments: k1vr@gis.net
Gentlemen:
I had a client who took a whole new approach to the visibility of
towers issue. Unfortunately, he recently died -- of reasons unrelated to
the stress of applying for a tower (which I secured). We never had to
fight the fight for which we were preparing, so I never got my hands on
the original material. However, here's what he wrote:
To: <towertalk@contesting.com>
Date: Wed, 17 Jun 1998 23:00:15 +0000
Subject: Guy Wires
Dear Fred, 3/16 diameter guy wires become invisible at 54
feet (53.6 ft). "Principles of Television
Engineering", D.G. Fink, McGraw-Hill, 1940, p. 32.
Apparently this book has a formula in it which discusses acuity of the
human eye. Does anyone here have the book? Or a similar formula? This
doesn't help when you neighbor gets upset, but it does help when someone
says: "I'll be able to see it from clear across the bay."
I suspect that anyone who works on TV, computer monitors, or who is an
optometrist or opthalmologist, might be able to contribute to the
question: At what distance does a thin object disappear to the human
eye?
-- Fred K1VR
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