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2. Ladder paradox - Wikipedia

   en.wikipedia.org/wiki/Ladder_paradox

   The door closes, and then opens again to let the front of the ladder pass through. At a later time, the back of the ladder passes through the entrance door, which closes and then opens. We see that, as simultaneity is relative, the two doors did not need to be shut at the same time, and the ladder did not need to fit inside the garage.

3. Garage door opener - Wikipedia

   en.wikipedia.org/wiki/Garage_door_opener

   The first garage door opener remote controls were simple and consisted of a simple transmitter (the remote) and receiver which controlled the opener mechanism. The transmitter would transmit on a designated frequency; the receiver would listen for the radio signal, then open or close the garage, depending on the door position.

4. Swing-door operator - Wikipedia

   en.wikipedia.org/wiki/Swing-door_operator

   To open the door, the operator forces the closer in the opening direction. Then, the closer closes the door. The user may open the door manually, using just the door closer. In case of power failure while the door is open, the closer itself closes the door. Some are built without a door closer. The motor opens and closes the door through ...

5. A Florida homeowner forgot to shut the garage. Then a ... - AOL

   www.aol.com/news/florida-homeowner-forgot-shut...

   The beast raided the freezer. For premium support please call: 800-290-4726 more ways to reach us

6. 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 ...

7. Monty Hall problem - Wikipedia

   en.wikipedia.org/wiki/Monty_Hall_problem

   If the car is behind door 1, the host can open either door 2 or door 3, so the probability that the car is behind door 1 and the host opens door 3 is ⁠ 1 / 3 ⁠ × ⁠ 1 / 2 ⁠ = ⁠ 1 / 6 ⁠. If the car is behind door 2 – with the player having picked door 1 – the host must open door 3, such the probability that the car is behind door ...