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2. Point Pinos Lighthouse - Wikipedia

   en.wikipedia.org/wiki/Point_Pinos_Lighthouse

   The light is a third-order Fresnel lens with lenses, prisms and mechanism manufactured in France in 1853. A larger, second-order light had been planned, but delay in shipment caused the present light, originally destined for the Fort Point Lighthouse in San Francisco, to be installed instead. The first light source was a whale oil lantern set ...

3. Emergency vehicle lighting - Wikipedia

   en.wikipedia.org/wiki/Emergency_vehicle_lighting

   Emergency vehicle lighting, also known as simply emergency lighting or emergency lights, is a type of vehicle lighting used to visually announce a vehicle's presence to other road users. A sub-type of emergency vehicle equipment , emergency vehicle lighting is generally used by emergency vehicles and other authorized vehicles in a variety of ...

4. Mobile infrared transmitter - Wikipedia

   en.wikipedia.org/wiki/Mobile_Infrared_Transmitter

   The timer causes the infrared LEDs to strobe at specific frequencies, such as 10Hz for low priority (buses) or 14 Hz for high priority (emergency vehicles). [citation needed] Low priority transmitters will control the intersection to perform a normal light change, while high priority transmitters will change an entire intersection immediately.

5. Ten hikers rescued from California’s ‘Last Chance’ canyon ...

   www.aol.com/ten-hikers-rescued-california-last...

   Hikers spent hours in wilderness at night. For premium support please call: 800-290-4726 more ways to reach us

6. Charred by fire, these grand California redwoods rise again ...

   www.aol.com/news/charred-fire-grand-california...

   The state park, California's oldest, is also the largest stand of ancient coast redwoods south of San Francisco. It was 97% burned in 2020, when the CZU Lightning Complex fire erupted in the Santa ...

7. Lost hikers ‘hunkered down’ to spend night on frigid mountain ...

   www.aol.com/lost-hikers-hunkered-down-spend...

   A 22-year-old solo hiker also went missing on Mount Baldy, deputies said. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us ...