Hi All, Back in 1995 I made an analemma in my own little cave using not a beam of sunshine, but a cardboard arrow taped to a window frame as a gnomon.
I used an accurate clock. If you are interested you can see the result at: http://www.shadow.net/~bobt/office/office.htm Bob [EMAIL PROTECTED] wrote: > > I saw "Cast Away" last week, and had a question about sudials and the movie. > After Tom Hanks has spent several years on a desolate island, he constructs > an impressive analemma from a thin beam of light that enters his cave, > complete with days of the months. This would not be hard, if he had a > working watch, but I don't think he did. So, my question is, is this just > Hollywood chicanery, or is it really a possible thing to do? Bill G. (I > need to know, in case my plane goes down in the south Pacific some day).
