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The card is then placed on a vertical surface with the thickest of the stripes at the bottom. The coating will then sag downward and the clearance of the gap that produces the thickest film stripe, not sagging completely to the stripe below, is the anti-sag index of the coating. [1]
The electric overhead garage door opener was invented by C.G. Johnson in 1926 in Hartford City, Indiana. [1] Electric Garage Door openers did not become popular until Era Meter Company of Chicago offered one after World War II where the overhead garage door could be opened via a key pad located on a post at the end of the driveway or a switch inside the garage.
Most gate kits can be fitted with safety equipment so that these limits are achieved and so cover that part of EN13241-1. In September 2010, following two incidents in Bridgend and Manchester , when children were killed by sliding gates, the UK Health and Safety Executive issued 2 safety notices aimed at gate manufacturers and installers ...
A voltage sag (U.S. English) or voltage dip [1] (British English) is a short-duration reduction in the voltage of an electric power distribution system. It can be caused by high current demand such as inrush current (starting of electric motors, transformers, heaters, power supplies) or fault current (overload or short circuit) elsewhere on the system.
Barrier troops, blocking units, or anti-retreat forces are military units that are located in the rear or on the front line (behind the main forces) to maintain military discipline, prevent the flight of servicemen from the battlefield, capture spies, saboteurs and deserters, and return troops who flee from the battlefield or lag behind their units.
A Cointet-element on a beach, rigged with explosive "sausages" by an American Underwater Demolition Team. Cointet-element at Collevill-sur-Mer. The Cointet-element, also known as a Belgian Gate or C-element, was a heavy steel fence about three metres (9 ft 10 in) wide and two metres (6 ft 7 in) high, typically mounted on concrete rollers, used as a mobile anti-tank obstacle during World War II ...
Cattle grid on country road. Cattle grids are usually installed on roads where they cross a fenceline, often at a boundary between public and private lands. [5] They are an alternative to the erection of gates that would need to be opened and closed when a vehicle passes, and are common where roads cross open moorland, rangeland or common land maintained by grazing, but where segregation of ...
DynaWeb is a collection of anti-censorship services provided by Dynamic Internet Technology Inc. (DIT). DynaWeb is a web-based anti-censorship portal. DynaWeb is a web-based anti-censorship portal. Once users point their web browser at one of the DynaWeb URLs, a web page will be presented similar to the original, with most blocked websites as ...
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