X (formerly Twitter)Ken Shirriff (@kenshirriff) on X
How did Russian cosmonauts know where they were? The Globus INK (1967) showed the position of their Soyuz spacecraft on a rotating globe. It is an analog computer built from tiny gears. I reverse-engineered the wiring (which inconveniently had been cut) and we powered it up. 🧵
Repost of https://twitter.com/rtraister/status/1434125191802761218?s=19