At 09:45 PM 1/3/2010, Bob Freitas wrote:
>This seems to have disappeared and was one I used often. The other
>calculators are just beyond my understanding and my Sutherlands
>seems to be missing all the 700 charts.
I found the site with the Internet Archive Wayback Machine
http://web.archive.org/
but it doesn't appear to have the Java applet for the calcuations. The page does give Dan's email address; you might try it to see if you can get the calculator directly from him:
<mailto:dan@halem.com>dan@halem.com
Mitchell Gass
Berkeley, California, USA