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Stand-off brackets: Dictated by OSHA Standard 1910.27(c)(4) stand-off brackets must be at least 7" (180 mm) longer than the farthest obstruction for clearance on the back side of ladder. This means that if there is a 4" (100 mm) gutter projecting from the side of a building, a fixed ladder would have to have standoff brackets that were at least ...
The short ladder in the complex solution in the 3, 2, 1 case appears to be tilted at 45 degrees, but actually slightly less with a tangent of 0.993. Other combinations of ladder lengths and crossover height have comparable complex solutions. With combination 105, 87, 35 the short ladder tangent is approximately 0.75.
The 1973 Brooklyn hostage crisis occurred when four robbers in Brooklyn, New York City, took hostages and engaged in a standoff with the New York City Police Department (NYPD) over the course of 47 hours from January 19 to January 21, 1973.
A Mexican standoff is a confrontation where no strategy exists that allows any party to achieve victory. [1] [2] Anyone initiating aggression might trigger their own demise. At the same time, the parties are unable to extract themselves from the situation without either negotiating a truce or suffering a loss, maintaining strategic tension ...
The Immovable Ladder is a wooden ladder leaning against a window of the Church of the Holy Sepulchre in the Old City of Jerusalem, protected from removal or alteration under the law of the Status Quo. The ladder rests on a ledge and is attached to the right window of the second tier of the facade, owned by the Armenian Apostolic Church.
Hook and Ladder No. 1 and Hose Co. No. 2, in Grand Forks, North Dakota; Hook and Ladder No. 3, in Hudson County, New Jersey; Hook and Ladder No. 4, in Albany, New York; Hook and Ladder House No. 5–Detroit Fire Department Repair Shop, in Detroit, Michigan; Hose and Hook and Ladder Truck Building, in Thomaston, Connecticut