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  2. Door phone - Wikipedia

    en.wikipedia.org/wiki/Door_phone

    Video door phone indoor terminal.. Going a little further in time, we find video door phones featuring a video installation apart from the classical audio. In these cases, the intercom plate has the same structure as the previous version but features a video monitor connected to a surveillance camera that allows inspecting the person who pressed the button and part of the surrounding area.

  3. Smart doorbell - Wikipedia

    en.wikipedia.org/wiki/Smart_doorbell

    The first-generation Ring video doorbell attached next to the front door of a house. A smart doorbell is an internet-connected doorbell that notifies the home owner on his or her device (smartphone or any other gadget) when a visitor arrives at the door. It activates when the visitor presses the button of the doorbell, or alternatively, when ...

  4. Door frame - Wikipedia

    en.wikipedia.org/wiki/Door_frame

    A door frame, window frame, door surround, window surround, or niche surround is the architectural frame around an aperture such as a door or window.. Entrance door and surround of a house in Charleston, South Carolina A interior doorway consisting of door, transom, and door surround in a historic house in Kentucky, United States

  5. Door - Wikipedia

    en.wikipedia.org/wiki/Door

    Door guards protect fingers in door hinges by covering the hinge-side gap of an open door, typically with a piece of rubber or plastic that wraps from the door frame to the door. Other door safety products eject the fingers from the push side of the door as it closes. There are various levels of door protection.

  6. Amazon Alexa - Wikipedia

    en.wikipedia.org/wiki/Amazon_Alexa

    Alexa can now pair with a Ring doorbell Pro and greet visitors and leave instructions about where to deliver packages. [51] As per Amazon, the recent surge in usage of smart home devices connected to Alexa has led to a corresponding 100% increase in requests to Alexa for controlling compatible home appliances like smart lights, fans, plugs, TVs ...

  7. List of Knots Landing episodes - Wikipedia

    en.wikipedia.org/wiki/List_of_Knots_Landing_episodes

    Karen realises the house is on fire and tries to put out the fire at her door. Greg tries to trace Phil's car and finds it registered in a false name and goes searching for his address in his car. Karen pulls up the floorboards to escape the fire. Eventually she finds a window and breaks it to escape. Phil sees the house explode into a fireball.

  8. Timeline of United States inventions (before 1890) - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_United_States...

    A revolving door has three or four doors that hang on a center shaft and rotate around a vertical axis within a round enclosure. In high-rise buildings, regular doors are hard to open because of air pressure differentials. In order to address this problem, the revolving door was invented in 1888 by Theophilus Van Kannel of Philadelphia ...

  9. Wikipedia:Language learning centre/Word list - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Language...

    Drawing up a comprehensive list of words in English is important as a reference when learning a language as it will show the equivalent words you need to learn in the other language to achieve fluency.