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Point Reyes National Seashore, part 3

2012-08-20T21:25:01+00:00

Resuming my story about Point Reyes National Seashore, north of San Francisco, from months ago when I left off before my computer melted…

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  • The beach at Point Reyes.
  • Windblown trees on the cliff overlooking the beach.
  • The cliffs are made of conglomerate rock, a mishmash of sedimentary rock.
  • The skull of a whale.
  • It’s a long walk up to the cliff, and a long walk down to the lighthouse.
  • The lighthouse has been replaced by an automated shack with a smaller, brighter strobe light, and a horn which sounds every few seconds.
  • The original lighthouse Fresnel lens.
  • The Fresnel lenses in most lighthouses were set up to rotate around the light. The lenses are made of hundreds or thousands of small lenses. Arranged properly, they focused the beam of light into a flashing strobe pattern as the lens assembly rotated around the light. Each lighthouse had its own distinctive flashing pattern, which told sailors which lighthouse they were looking at, so they would know where they were. A gravity-driven clockwork motor (shown here) drove the rotation of the assembly. The lighthouse keeper’s job was to keep the lamp fueled with oil, and to keep the clockwork motor wound.
2 Comments
  1. 2012-08-20T21:34:30+00:00 21:34

    Wow Marvin did you get a new camera, these are amazing angles of the park. Great details captured. Anna :)

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    • 2012-08-21T22:02:04+00:00 22:02

      Nope, same old Kodak v570 that i found on sale many years ago. I keep it because it’s small, durable and it takes great wide-angle pictures. But it can’t shoot action or low light worth a darn.

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