3 ms·
A sextant (1731) vs. GPS (1973, fully operational 1993). Most large ships still have sextants as backup.
by rapnie 6y ago
A sextant (1731) vs. GPS (1973, fully operational 1993). Most large ships still have sextants as backup.
- greedo 6y agoAnd the US Navy, after a hiatus has started training officers and crew on how to use a sextant since modern warfare will probably result in GPS being either jammed to oblivion or shot down.