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Pixar's location in Emeryville, California, had a hidden room hidden by a sliding bookcase. [20] It was initially discovered by Pixar animator Andrew Gordon, who opened a hatch door in his office that revealed a hidden room that was designed to provide maintenance workers "access to a portion of the building's ventilation system". [ 20 ]
A hidden compartment or secret compartment is a compartment whose existence or access is not obvious at first glance, and can be used as a hiding place for objects or sometimes even for people. A hidden compartment where people can stay is usually referred to as a hidden room or secret room , and can range from parts of small wardrobes or ...
A floating shelf can be supported on hidden rods or bars that have been attached to studs. A thick floating shelf may be made of a hollow-core shelf glued to a cleat. [7] A floating shelf may have two or more channels open from the back towards, but without reaching, the front, into which slide fasteners attached to the wall, typically held in place by screws inserted through the bottom of the ...
As the shelves must still separate, the usual hinged doors opening sideways cannot be used; instead there is an "up and over" mechanism on each shelf, like an overhead door. The better quality cases use a metal scissor mechanism inside the shelves to ensure that the ends of the doors move in parallel without skewing and jamming.
Free-standing shelves can be accessible from either one or both longer length sides. A shelf with hidden internal brackets is termed a floating shelf. A shelf or case designed to hold books is a bookshelf. The length of the shelf is based upon the space limitations of its siting and the amount of weight which it will be expected to hold.
In the 2001 adventure game Alfred Hitchcock Presents: The Final Cut, the player must cut open a book with a knife to discover a key. [permanent dead link ]. In the horror game Resident Evil, players can obtain a book with a medal hidden inside. In the video game Hitman: Blood Money, the player can conceal a bomb in a hollow bible.
In order to provide the shear magnetic lock with the appropriate holding force, then two pins lock the armature onto the magnet itself, and ensure that the magnet locks into place. An improved "shear" electromagnetic lock was patented on May 2, 1989, by Arthur, Richard and David Geringer of Security Door Controls, an access control hardware ...
An electric current typically energizes the electromagnet to attract and hold the steel plate, keeping the door open. Unlike electromagnetic locks, the magnetic attraction of an electromagnetic door holder is usually weak enough that it can be manually overpowered at any time by anyone, allowing the door to close. [citation needed]