Hi everyone
In the December 2014 Israel post office issued a beautiful set of sundial
stamps (Sundials of Eretz). I cannot attach the pictures, so here are direct
links:
http://static.israelphilately.org.il/images/stamps/4159_L.jpg
http://static.israelphilately.org.il/images/stamps/4160_L.jpg
Hi Phil,
Many Thanks for your response and for the first pic of a sundial
made from what was quite a herculean labour in making all those individual
plots. the lines were fairly easy but the roman numerals are unique to each
plate. Good to see you individualizing the idea with your
John Richard:
Whatr a sloppy mess my posting was, where I told the solution for h.
This is a better way to present it, and a neat, convenient way to evaluate
the solution:
The quadratic formula:
[-b +/- sqrt (b^2 - 4ac] / 2a
--
a,b, c, for this solution:
a = sin^2
Sundial at the Very Large Array made from parts of an old
radio telescope.
http://news.stanford.edu/thedish/2013/10/02/worlds-first-radio-sundial-dedicated-in-memory-of-ron-bracewell/
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