(no subject)

[gfish]

Completely unrelated: Does anyone know the official name of those old physical map devices that displayed the current solar terminator? Maybe it's just the extreme sleepdep, but my Google-fu is failing me utterly. Mostly I just want to know how unaffordable a used one would be.

Edit: They're called Geochrons. Thanks go to Internet Braintrust rep hollyking.

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[shadowblue.livejournal.com]

(Kind of outdated, but hey, it's the internets)

I think my grandparents have one of those. I thought it was electronic inside?