what are ladders used for?
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A ladder is a piece of equipment consisting of repeated bars or steps (rungs) between two upright lengths of metal, wood, or rope, used for climbing up or down something... So why are there so many different types of ladders?
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Lyte is a well-known brand when it comes to extendable ladders so you know you are going to be looked after if you own one of their ladders. ... At its highest extension this ladder can extend up to 5.22 metres which is perfect for any professional trade looking to undertake any work at height.
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Crowbars are commonly used to open nailed wooden crates or pry apart boards. In mining, crowbars have been used to break and remove rock, but not as much in modern mining.
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A DNA ladder is a solution of DNA molecules of different lengths used in agarose or acrylamide gel electrophoresis. It is applied as a reference to estimate the size of unknown DNA molecules that were separated based on their mobility in an electrical field through the gel.
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Villagers can climb ladders if they are in their path, like other mobs. This means if they walk into a ladder or a vine, they will climb it. However, in your case the villagers will not purposely climb up and down into the tree houses.
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Joist hangers are used in construction and designed to anchor wooden beams. Primarily in roofs, decking, floors and ceilings for the purpose of creating a strong, long lasting support. ... There is a connecting plate on the joist hanger that is fastened to the surrounding frame.
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A step ladder is a self-supporting ladder that takes the shape of an inverted V when its two halves are pulled apart at an angle, with treads or steps, rather than rungs. On the other hand, a step stool, though sharing some design concepts like the treads or steps with the step ladder, is more of a stool than a ladder.
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Knots can save spelunkers from being buried under rock. Many knots can also be used as makeshift tools, for example, the bowline can be used as a rescue loop, and the munter hitch can be used for belaying. ... In hazardous environments such as mountains, knots are very important.
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There are four categories of the duty ratings: a) Type IA – These ladders have a duty rating of 300 pounds. Type IA ladders are recommended for extra-heavy-duty industrial use. b) Type I – These ladders have a duty rating of 250 pounds.
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The distance from the foot of a ladder to the wall should never be more than one-half the height to the support point, an angle of about 63 degrees above horizontal. Otherwise, more strain will be put on the side rails than they are designed to carry.
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Engines run on some medicals, auto accidents, fires and fire alarms, and most all calls for service. Out ladder trucks or towers, aerial devices, carry a small amount of water and some hoses, but are generally used for anything above ground, ventilation, as well as search.
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['Avoid pushing or pulling stepladders from the side. Repeated sideways movement can make ladders wobbly since they are weaker or less stable in those directions.', 'Face the stepladder when climbing up or down. Keep your body centered between side rails. ... ', 'Maintain a firm grip.']
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Static Ropes These are best for rescue work, caving, climbing fixed lines with ascenders and hauling loads. Static ropes excel in situations where you don't want the rope to stretch, such as when you are lowering an injured climber, ascending a rope, or hauling a load up with the rope.
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Dynamic ropes are designed to absorb the energy of a falling climber, and are usually used as belaying ropes. When a climber falls, the rope stretches, reducing the maximum force experienced by the climber, their belayer, and equipment. Low elongation ropes stretch much less, and are usually used in anchoring systems.
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What the heck is the purpose of the rope on an extension ladder? To pull up the ladder instead of pushing it up.
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Joist hangers provide support underneath the timber beam, joist or rafter to provide a strong connection, to resist downward force and to provide structural stability. The galvanized coating would allow the hanger to be used outdoors. They can be fixed, where fixing is necessary, with either screws or nails.
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Any mob can climb a ladder in the same way a player does: by pushing against it. Mobs are not smart enough to use ladders deliberately — they do not remain on a ladder to get somewhere, but a ladder directly in their path lets them climb up.