Blast From the Past — 1936

The choice to low-pressure sodium vapor lamps on the Golden Gate Bridge was a last-minute decision near the end of the construction project. By 1976 these fixtures were replaced with ones using high-pressure sodium vapor lamps and even more savings in operational dollars.

40 years later, those fixtures were retro-fitted with inserts using inductive fluorescent lamps, a technology that was demonstrated by Nikola Tesla in the 1890s. The more things change, the more they stay the same.

(Click on image to enlarge)


Source: Scotoyome Scimitar newspaper, June 18, 1936, via California Digital Newspaper Collection, Center for Bibliographic Studies and Research, University of California, Riverside


  2 comments for “Blast From the Past — 1936

  1. January 15, 2019 at 4:51 PM

    Hmm. Did not notice the lamp detail before but I thought mazda was a car. But, as spake Zarathustra, live and learn. 🙂

    Liked by 1 person

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