On Fri 2015-11-20T15:53:52 +0000, Paul_Koning@dell.com hath writ:
I'm puzzled. Are there still marine navigators who have a sextant at hand, never mind know how to use one, let alone active use it? And celestial navigation in airplanes disappeared, what, 50 years ago?
The celestial navigation relies on an almanac. If the almanacs were changed to tabulate according to "cesium atomic days" of SI seconds instead of "mean solar days" of earth rotation then everything would work. The tricky part is getting everyone to agree to that change. -- Steve Allen <sla@ucolick.org> WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165 Lat +36.99855 1156 High Street Voice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064 http://www.ucolick.org/~sla/ Hgt +250 m