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These rope bridges must be renewed periodically owing to the limited lifetime of the materials, and rope components are made by families as contributions to a community endeavor. Simple suspension bridges, for use by pedestrians and livestock, are still constructed, based on the ancient Inca rope bridge but using wire rope and sometimes steel ...
Infobox bridge}} and {{Infobox tunnel}} are the preferred templates for individual structures and work best for users if placed at the top of the page. Refer to the template pages for detailed instructions. {{Infobox bridge type}} should be used for bridge design types.
A simple hanging rope bridge describes a catenary, but if they were in the form of a suspension bridges they usually describe a parabola in shape, with the roadway hanging from the inverted arch. Modern suspension bridges were built from the early 19th century, beginning with chains and progressing to more and more elegant steel rope examples ...
Diagram 3 shows three rope parts supporting the load W, which means the tension in the rope is W/3. Thus, the mechanical advantage is three-to-one. By adding a pulley to the fixed block of a gun tackle the direction of the pulling force is reversed though the mechanical advantage remains the same, Diagram 3a. This is an example of the Luff tackle.
The knot provides a compact, streamlined and decorative way of joining two ropes. However its primary attribute is that it is resistant against working loose when subject to intermittent loads. [1] The security of the knot arises from the fact that at step 3 in the tying sequence the knot is a Double Harness Bend (ABoK #1420). The additional ...
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Rabbits are the seventh most popular pet in the U.S. Whether you own a bunny or want to, you may wonder how long it'll live. Here's a timeline.
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