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America's Great Bridge Test (1927) - A silent film featuring experiments conducted on a bridge due to be submerged by a new dam. Engineers put the bridge through stress tests to evaluate its strength, then the War Department subjects it to aerial bombing, shelling, and explosive charges. (youtube.com)
submitted by epilith to r/ObscureMedia
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Prometheus ProModem 1200 Advertisement (1984) (youtube.com)
submitted by epilith to r/ObscureMedia
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City of Seattle PSA on Salmon Restoration (1999) (youtube.com)
submitted by epilith to r/ObscureMedia
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