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Marius Watz
@mariuswatz
Curious about mid-1960's Cold War tech that left behind physical artifacts in the real world? Check out the Casa Grande Photogrammetric Test Range. 16 x 16 mile grid of 18m wide targets in the shape of crosses, spread out over the Arizona desert, one mile apart. https://www.atlasobscura.com/places/corona-satellite-calibration-targets
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Paul Prudence
@paul-prudence
150 $degen for this unintentional land art. 🖤
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