At 9:29 AM 3/20/5, Grimer wrote: >> A gyroscope very well gimballed in all axes and oriented in the equatorial >> plane should work (though not as a pendulum). A nifty thing about that in >> the old days is it could have replaced an accurate clock as the means of >> determining longitude. A good gyro, combined with an accurate lunar >> ephemieris... > > >A case of two eyes being better than one, eh. <G>
Yes, I misspelled "ephemeris" above, having added an extra "i". However, it's still handy to be able to have even one bad eye open when the other is obscured, even though the extra "i" above apparently was not obscured. 8^) Regards, Horace Heffner
