Open post David N @dnaunton@fosstodon.org · 5mo ago Replying to @kenshirriff@oldbytes.space In the 1960s, the B-52 bomber could navigate by the stars. Celestial navigation requires spherical trigonometry, so an analog Angle Computer solved these equations electromechanically. Let's look inside... @kenshirriff is this the same one that was in the SR-71?