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  2. Chennai Lighthouse - Wikipedia

    en.wikipedia.org/wiki/Chennai_lighthouse

    Coconut oil was considered the best fuel for a lighthouse lamp because it made the light burn bright in the lighthouse. Gas lights were used later followed by dischargeable lamps. In the beginning, the lighthouse lamp had a steady flame. When ships began to confuse this with city lights, it was decided to use a flickering light in lighthouses.

  3. List of lighthouses in India - Wikipedia

    en.wikipedia.org/wiki/List_of_lighthouses_in_India

    They are administered by the Directorate General of Lighthouses and Lightships, Government of India whose headoffice is located in Noida. They are categorized for administrative reasons into nine directorates: Gandhidham , Jamnagar , Mumbai , Goa , Cochin , Chennai , Visakhapatnam , Kolkata and Port Blair .

  4. Remote control - Wikipedia

    en.wikipedia.org/wiki/Remote_control

    When seen through a digital camera, the diode appears to be emitting pulses of purple light. Most remote controls for electronic appliances use a near infrared diode to emit a beam of light that reaches the device. A 940 nm wavelength LED is typical. [33] This infrared light is not visible to the human eye but picked up by sensors on the ...

  5. Lighting control system - Wikipedia

    en.wikipedia.org/wiki/Lighting_control_system

    The major advantage of a lighting control system over stand-alone lighting controls or conventional manual switching is the ability to control individual lights or groups of lights from a single user interface device. This ability to control multiple light sources from a user device allows complex lighting scenes to be created.

  6. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  7. Home automation - Wikipedia

    en.wikipedia.org/wiki/Home_automation

    Early home automation began with labor-saving machines. Self-contained electric or gas powered home appliances became viable in the 1900s with the introduction of electric power distribution [3] and led to the introduction of washing machines (1904), water heaters (1889), refrigerators (1913), sewing machines, dishwashers, and clothes dryers.

  8. The AOL.com video experience serves up the best video content from AOL and around the web, curating informative and entertaining snackable videos.

  9. Wireless light switch - Wikipedia

    en.wikipedia.org/wiki/Wireless_light_switch

    Wireless light switches eliminate the wire from the light to the switch location. This is useful in remodelling situations where new wiring can be a hassle. Rather than tearing down a wall to gain access to the wires, a wireless switch can be used. This avoids any need to access wires and makes remodelling fast and simple.

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