Diff: PointReyesLighthouseOld
Differences between current version and predecessor to the previous major change of PointReyesLighthouseOld.
Other diffs: Previous Revision, Previous Author
| Newer page: | version 2 | Last edited on June 11, 2002 9:56 pm | by PhilHollenback | |
| Older page: | version 1 | Last edited on December 18, 2001 3:03 pm | by 10.1.3.2 | Revert |
@@ -1,7 +1,7 @@
Here's the old lighthouse itself. The fresnel lens (which you can see in the window) turned around the actual light. The lens split the light into 24 vertical beams, and if you were out in a boat a beam would pass you every 6 seconds. Every lighthouse has a different rotational speed so you could tell which one you are near by timing the light.
-[http://www.hollenback.net/album/pointreyes-lighthouse-old-1
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+<?plugin IncludePhoto file=PointReyesLighthouseOld1
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Fresnel is pronounced 'freh-nel'.
[forward|HeaterPointReyesWalkway]
current version
Here's the old lighthouse itself. The fresnel lens (which you can see in the window) turned around the actual light. The lens split the light into 24 vertical beams, and if you were out in a boat a beam would pass you every 6 seconds. Every lighthouse has a different rotational speed so you could tell which one you are near by timing the light.
Fresnel is pronounced 'freh-nel'.
