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View Full Version : Happy Birthd to Nicholas Carey...



Spin_Drift
11-21-2011, 04:34 AM
Have a great birthday. May your new year bring you the best of everything...:)

http://i202.photobucket.com/albums/aa111/Spin_Drift/MoonOverPigeonPointLighthousesmall.jpg

John of Phoenix
11-21-2011, 09:16 AM
A most appropriate picture too - a beacon of light for the forum.

Have a wonderful brthday.

htom
11-21-2011, 09:38 AM
Haooy birthday, Nicholas.

TomF
11-21-2011, 12:41 PM
Happy b-day, Nick!

Nicholas Carey
11-21-2011, 01:14 PM
Have a great birthday. May your new year bring you the best of everything...:)

http://i202.photobucket.com/albums/aa111/Spin_Drift/MoonOverPigeonPointLighthousesmall.jpg

Thanks! I love that lighthouse!

That's Pigeon Point Light Station in San Mateo County, California. It's still got the original 1st order Fresnel in it (the lens assembly is some 17 feet tall. The optics are 1008 individual lens/prisms arranged in 24 flash panels, some 7 ft 10 ins tall x 6 ft 1 ins wide). Here's a 1st order Fresnel on the hoof:

http://www.michiganlights.com/images/1storder.jpg

The whole lens assembly turns once every 4 minutes to yield Pigeon Point light's "flashes white every 10 seconds". It used to be powered by a lard oil lamp, then by a pressurized kerosene lamp that put out 160,000 candlepower (c. 1.9-2.0 million lumens). Then in 1926, a 1,000 watt electric lamp was installed that yielded some 680,000 candlepower (c. 8.4 million lumens).

Sadly, the Coast Guard shut down the Pigeon Point Light in 1972 and installed a wussy aerobeacon on the front of the tower.

But once a year, in mid-November, the shut down the aerobeacon and light the original light, in mid-November. The wait 5 minutes before starting the lens motor, so photographers can get some shots with the lens stationary. Unfortunately, the tower has suffered the ravages of time (and given the location, probably the ravages of earthquakes), so the California park system is starting a renovation of the tower and the light won't be light again for the next several years. But there a bunch of pics on Flickr. Here's a couple I like:

http://farm5.staticflickr.com/4087/5173681131_5d252dc4d7_b.jpg (http://www.flickr.com/photos/liquidmoonlightcom/5173681131/)
Return to Pigeon Point Lighthouse - 138th Anniversary (http://www.flickr.com/photos/liquidmoonlightcom/5173681131/) by Darvin Atkeson (http://www.flickr.com/people/liquidmoonlightcom/), on Flickr

http://farm6.staticflickr.com/5137/5458363024_d26daed06c_b.jpg (http://www.flickr.com/photos/liquidmoonlightcom/5458363024/)
Pigeon Point Lighthouse (http://www.flickr.com/photos/liquidmoonlightcom/5458363024/) by Darvin Atkeson (http://www.flickr.com/people/liquidmoonlightcom/), on Flickr

Glen Longino
11-21-2011, 02:56 PM
Happy Birthday, Nick!