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  2. Garage door opener - Wikipedia

    en.wikipedia.org/wiki/Garage_door_opener

    A residential garage door opener. The motor is in the box on the upper-right. A garage door opener is a motorized device that opens and closes a garage door controlled by switches on the garage wall. Most also include a handheld radio remote control carried by the owner, which can be used to open and close the door from a short distance.

  3. Garage door - Wikipedia

    en.wikipedia.org/wiki/Garage_door

    Sectional garage door Up-and-over garage door Garage Door Hardware. A garage door is a large door to allow egress for a garage that opens either manually or by an electric motor (a garage door opener). Garage doors are frequently large enough to accommodate automobiles and other vehicles. The operating mechanism is usually spring-loaded or ...

  4. Rolling code - Wikipedia

    en.wikipedia.org/wiki/Rolling_code

    An attacker may be able to learn the code word that opened the door just now, but the receiver will not accept that code word for the foreseeable future. A rolling code system uses cryptographic methods that allow the remote control and the receiver to share codewords but make it difficult for an attacker to break the cryptography.

  5. Latch - Wikipedia

    en.wikipedia.org/wiki/Latch

    The latch bolt is disengaged (retracted) typically when the user turns the door handle, which via the lockset's mechanism, manually retracts the latch bolt, allowing the door to open. A deadlocking latch bolt ( deadlatch ) is an elaboration on the latch bolt which includes a guardbolt to prevent " shimming " or "jimmying" of the latch bolt.

  6. Kansas City is closing the deteriorating parking garage at ...

    www.aol.com/kansas-city-closing-deteriorating...

    Repairing the garage would cost around $30 million and would only extend its life for a decade, the city said. The garage was originally built in 1954 and was last renovated in 1984.

  7. Ladder paradox - Wikipedia

    en.wikipedia.org/wiki/Ladder_paradox

    A clear way of seeing this is to consider the doors, which, in the frame of the garage, close for the brief period that the ladder is fully inside. We now look at these events in the frame of the ladder. The first event is the front of the ladder approaching the exit door of the garage.

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