Digest>November 2003

Photo By:

 

Chris Mills

Photo Caption:

Tom Roberts, a marine aids technician for Canada’s Department of Fisheries and Oceans (Coast Guard division) tells visitors about the TRB-400 lighthouse lens. These acrylic Fresnel-lensed systems have replaced the old glass Fresnel lenses in many light towers.
Back to the edition of: November 2003

Story:

Let There Be Light! ... And Sound!
Back to the edition of: November 2003

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