National Monument Archives - San Diego Magazine https://sandiegomagazine.com/tag/national-monument/ Wed, 20 Sep 2023 00:36:00 +0000 en-US hourly 1 https://wordpress.org/?v=6.7.1 https://sandiegomagazine.com/wp-content/uploads/2023/08/cropped-SDM_favicon-32x32.png National Monument Archives - San Diego Magazine https://sandiegomagazine.com/tag/national-monument/ 32 32 Exploring Cabrillo https://sandiegomagazine.com/guides/exploring-cabrillo/ Wed, 25 Sep 2013 00:55:40 +0000 http://staging.sdmag-courtavenuelatam.com/uncategorized/exploring-cabrillo/ We celebrate the 100th anniversary of the national monument and park at the end of the Point with (what else?) fun facts galore.

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Exploring Cabrillo

Cabrillo illustration

DID YOU KNOW?

There are 234 prisms made of hand-ground crystal in the lighthouse’s Fresnel lens, developed by French physicist Augustin-Jean Fresnel. / The third-order Fresnel lens is a relic of the past; the lenses were made in France and what was once Czechoslovakia, but all the craftsmen who knew how to make them were killed in WWII.

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