Digest>July 2009

Photo Caption:

The original configuration of the Piedras Blancas lens was alternating bull's eye lenses and horizontal, barrel lenses. This arrangement produced a fixed light varied by a flash every 15 seconds. (Drawing by Mark Arnold, PBLS volunteer).
Back to the edition of: July 2009

Story:

The Light At Piedras Blancas
Back to the edition of: July 2009

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