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Margaret Jane Pauley (born October 31, 1950) is an American television host and author, active in news reporting since 1972. She first became widely known as Barbara Walters's successor on the NBC morning show Today, beginning at the age of 25, where she was a co-anchor from 1976 to 1989, at first with Tom Brokaw, and later with Bryant Gumbel; for a short while in the late 1980s she and Gumbel ...
A capstan is a vertical- axled rotating machine developed for use on sailing ships to multiply the pulling force of sailors when hauling ropes, cables, and hawsers. The principle is similar to that of the windlass, which has a horizontal axle. The capstan and the anchor windlass on the deck below that it drives.
ABoK. #1763. A Prusik (/ ˈprʌsɪk / PRUSS-ik) is a friction hitch or knot used to attach a loop of cord around a rope, applied in climbing, canyoneering, mountaineering, caving, rope rescue, ziplining, and by arborists. The term Prusik is a name for both the loops of cord used to tie the hitch and the hitch itself, and the verb is "to prusik ...
An F-14 Tomcat descends to make an arresting gear landing on the flight deck of USS Theodore Roosevelt (CVN-71) in 2002. An arresting gear, or arrestor gear, is a mechanical system used to rapidly decelerate an aircraft as it lands. Arresting gear on aircraft carriers is an essential component of naval aviation, and it is most commonly used on ...
The formula is. where is the applied tension on the line, is the resulting force exerted at the other side of the capstan, is the coefficient of friction between the rope and capstan materials, and is the total angle swept by all turns of the rope, measured in radians (i.e., with one full turn the angle ). For dynamic applications such as belt ...
Windlass. The windlass / ˈwɪndləs / is an apparatus for moving heavy weights. Typically, a windlass consists of a horizontal cylinder (barrel), which is rotated by the turn of a crank or belt. A winch is affixed to one or both ends, and a cable or rope is wound around the winch, pulling a weight attached to the opposite end.
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