NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: The Analemma in Castaway
From: Bill B
Date: 2006 Dec 11, 00:44 -0500
From: Bill B
Date: 2006 Dec 11, 00:44 -0500
LOL Frank. H_ll, he failed to hang himself. Who can trust him? You'll have to ask Ken about the deeper implications.Bill > Just as well perhaps. Think about it: how could you get an analemma on a cave > wall. If there's some little notch that admits light for only some brief > period of the day, it will catch the Sun's light at the same Local Apparent > Time every day. To get an analemma, you need to mark the Sun's position at the > same Mean Time --clock time-- every day. You could get the up-down component, > which comes from the Sun's changing declination, and that's enough to make a > calendar, but the left-right component, which generates the classic > "figure-eight" shape of the analemma, would seem to require a functioning > clock. > > There is one way to rescue the movie scene. Suppose the time-obsessed > character in "Castaway" is so obsessed with time that he has studied, > academically, the concept of LAT vs LMT (for those who haven't seen it, the > ironic twist in the film is that the character is some sort of executive > shipping manager for FedEx and he is literally obsessed with punctuality). > Perhaps he understands the meaning of the analemma on the globe and has 'waxed > philosophic' about its implications. Maybe there's a scene that ended up on > the cutting room floor that shows the castaway back in civilization before the > plane crash lecturing some fellow employee and pontificating that "even the > Sun is late six months out of the year, but we at FedEx will be better than > the Sun itself". If he had this information in advance, then by drawing out > the analemma (roughly) on the wall of his cave from memory, the time-obsessed > castaway would have a shred of civilization under his control in the form of > knowing the approximate mean time every day at local apparent noon even when > his watch had stopped running. This might have been too cerebral for a movie > that was already slow-moving, but it's not outside the realm of possibility. --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to NavList@fer3.com To , send email to NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---