5 ms·

For SV folks who want to see a (not operational) Fresnel lens, there is one nearby at https://en.m.wikipedia.org/wiki/Pigeon_Point_Lighthouse https://en.m.wikip

• dredmorbius 7y ago
  Point Bonita is closer, if you're in SF. Alcatraz and the Faralones are technically within SF city limits. http://www.terragalleria.com/images/us-ca/usca30023.jpeg http://www.terragalleria.com/images/us-ca/usca30023.jpeg https://californiathroughmylens.com/wp-content/uploads/2018/11/point-bonita-lighthouse-16-640x427.jpg https://californiathroughmylens.com/wp-content/uploads/2018/... http://www.lighthousefriends.com/light.asp?ID=100 http://www.lighthousefriends.com/light.asp?ID=100
• selimthegrim 7y ago
  I believe the old lighthouse near Daytona Beach (Ponce Inlet) in FL has a few too on the grounds.
• foobiekr 7y ago
  Or they could just put on pretty much any of the major VR headsets since most of them use fresnel lenses.
• kd5bjo 7y ago
  There’s also one in the Maritime NHP visitor’s center: https://www.nps.gov/safr/planyourvisit/the-visitor-center.htm https://www.nps.gov/safr/planyourvisit/the-visitor-center.ht... https://www.nps.gov/safr/planyourvisit/images/lgthouselenscms.jpg https://www.nps.gov/safr/planyourvisit/images/lgthouselenscm...