JF Ptak Science Books Quick Post
I’m fairly well certain that I have never seen an image of a camera obscura being used for military purposes–until today. I found “The Camera Obscura in Torpedo Work”, in the great scientific journal Nature, for 26 February 1885, pp 389-340. Here’s a detail:
the full article follows. It makes sense, kind of a cyber-tool, a steampunk hologram in a way. And there it is.
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