-------- Warner Losh writes: > Still, even 50m can be a lot if you are flying over a narrow mountain pass > in a plane that can't just fly super-high above it...
Celestial navigation requires you to be able to see something through the windows. If that is an option the sane pilot would look at the terrain. Also: When&where celestial navigation is possible, most vessels travel a lot further than 50 meters during the time it takes to make a measurement of the necessary precision. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. _______________________________________________ LEAPSECS mailing list LEAPSECS@leapsecond.com https://pairlist6.pair.net/mailman/listinfo/leapsecs
