Friday, September 10, 2010

Oregon Coast with Heceta Head in the Distance

Another beautiful day on the Oregon Coast

THE LIGHT has been on for more than a century. The U.S. Lighthouse Service lit the wick of the original coal oil (kerosene) lamp on March 30, 1894. That light, produced by five concentric wicks and magnified by a 392-prism British-made Fresnel lens, equaled 80,000 candle power. Its visibility, 21 miles from shore, is limited only by the curvature of the earth.

The Light Keepers had a difficult task trying to keep the light flashing once every minute from sunset to sunrise. They had to manually wind the clock; and in order to keep the wicks burning, they had to haul coal oil from the fuel houses up the tower. Then there was always soot on the lens of the lamp to clean off.

1 comment:

Judith said...

Love your descriptions that give the history of your beautiful photos.