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A door may be held open with a device such as a door holder [1] or door closer, [2] which can automatically release the door upon the sound of a fire alarm and protect a building in the event of a fire. An ultraviolet door handle attendant can be installed to sterilize the existing handle. Automatic door handle sanitisers are used mainly in ...
Door breaching is a process used by military, police, or emergency services to force open closed or locked doors. A wide range of methods are available depending on the door's opening direction (inward or outward), construction materials, etc., and one or more of these methods may be used in any given situation.
This is an accepted version of this page This is the latest accepted revision, reviewed on 5 February 2025. Device to open or close door Various examples of door handles throughout history A door handle or doorknob is a handle used to open or close a door. Door handles can be found on all types of doors including: exterior doors of residential and commercial buildings, internal doors, cupboard ...
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A US Marine practices shotgun door-breaching techniques. A breaching round or slug-shot is a shotgun shell specially made for door breaching.It is typically fired at a range of 6 inches (15 cm) or less, aimed at the hinges or the area between the doorknob and lock and doorjamb, and is designed to destroy the object it hits and then disperse into a relatively harmless powder.
This page was last edited on 30 June 2018, at 12:36 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
The Knob (disambiguation), several individual knobs with the name A knob is also a kame , which is a mound left behind by a glacier Knobs region , a geographic region of Kentucky, locally known as "The Knobs", consisting of hundreds of isolated hills
Fracture mechanics is the field of mechanics concerned with the study of the propagation of cracks in materials. It uses methods of analytical solid mechanics to calculate the driving force on a crack and those of experimental solid mechanics to characterize the material's resistance to fracture.