Gregory's Server@kenshirriff The Mercury spacecraft had a similar mechanical globe called the Earth Path Indicator: https://www.rrauction.com/auctions/lot-detail/340932005505026
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@kenshirriff The Mercury spacecraft had a similar mechanical globe called the Earth Path Indicator: https://www.rrauction.com/auctions/lot-detail/340932005505026 1 comment
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@emgre @kenshirriff interestingly that one doesn't seem to be driven at a great circle, so I wonder how that works reliably (since then it can't be fixed to the globe and be able to show every position?)