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Items can be concealed in books in a number of ways. Small items such as a photograph or a note can be hidden in between the pages of the book. Thicker items can be hidden by removing the interior portion of some or all of the pages, creating a book safe or hollowed-out book. Book safes are easy for their owners to recognise, but they do not ...
Radio hidden in a book. This was commonly done in World War II to hide radios from the German occupiers. Concealment devices or diversion safes are used to hide things for the purpose of secrecy or security. They are made from an ordinary household object such as a book, a soda can, a candle, a can, or something as small as a coin.
The two facets are that of a book safe and that of steganography. Both can use books to conceal a thing, but a book safe uses the physical construct of bound paper to conceal a physical object, whereas steganography uses some codification technique to conceal a message in text.
The principle is carried out somewhat literally in many of the James Bond films, in which the spy is presented with new gadgets at the beginning of a mission – such as a concealed, wrist-activated dart gun in Moonraker [7] – and typically each device serves a vital role in the story. [8]
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 ...
The primary goal of conservation is to extend the lifespan of the object as well as maintaining its integrity by keeping all additions reversible. Conservation of books and paper involves techniques of bookbinding, restoration, paper chemistry, and other material technologies including preservation and archival techniques. [1]
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Alberich puts on the Tarnhelm and vanishes; illustration by Arthur Rackham to Richard Wagner's Das Rheingold. Invisibility in fiction is a common plot device in stories, plays, films, animated works, video games, and other media, found in both the fantasy and science fiction genres.