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A rifle on display. Chekhov's gun (or Chekhov's rifle; Russian: Чеховское ружьё) is a narrative principle that states that every element in a story must be necessary and irrelevant elements should be removed. For example, if a writer features a gun in a story, there must be a reason for it, such as it being fired some time later ...
A display case (also called a showcase, display cabinet, shadow box, or vitrine) is a cabinet with one or often more transparent tempered glass (or plastic, normally acrylic for strength) surfaces, used to display objects for viewing. A display case may appear in an exhibition, museum, retail store, restaurant, or house. Often, labels are ...
1901 diagram of a version of Howard Grubb's collimating reflector sight designed to make a compact version suitable for firearms and small devices. Ambient lighting of the reticle was improved by placing it facing up and bouncing it off a relay mirror then off a concave collimating mirror Prototype of the Grubb reflector sight attached to a rifle
Jezail. The jezail or jezzail (Pashto: جزائل, ultimately from the plural form Arabic: جزایل, "long [barrels]") is a simple, cost-efficient and often handmade long arm commonly used in South Asia and parts of the Middle East in the past.
Two kinematic mirror mounts, with mirrors. A mirror mount is a device that holds a mirror. [1] In optics research, these can be quite sophisticated devices, due to the need to be able to tip and tilt the mirror by controlled amounts, while still holding it in a precise position when it is not being adjusted.
An example (open and closed) of a typical gun safe. A gun safe is a safe designed for storing one or more firearms and/or ammunitions.Gun safes are primarily used to prevent access by unauthorized or unqualified persons (such as children), for burglary protection and, in more capable safes, to protect the contents from damage by flood, fire or other natural disasters.
An Italian jewelry casket, 1857, carved walnut, lined with red velvet. A casket [1] is a decorative box or container that is usually smaller than a chest and is typically decorated. In recent centuries they are often used as boxes for jewelry, but in earlier periods they were also used for keeping important documents and many other purposes. [2]
The Dardanelles Gun was cast in bronze in 1464 by Munir Ali with a weight of 17 tonnes and a length of 5.18 m (17.0 ft), being capable of firing stone balls of up to 0.635 m diameter (25.0 in). The powder chamber and the barrel are connected by the way of a screw mechanism, allowing easier transport of the unwieldy device.