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With the introduction of the nautical mile as a standard unit of measure at sea in the 15th century, they began to mark the line at equal intervals proportional to the nautical mile and to the time interval used for measurement. Initially, the markings were simply knots in the line. Later, sailors worked knotted cords into the log-line.
A two lead, three bight Turk's head is also a trefoil knot if the ends are joined together. (2,n) alternating torus knots are (2,n) Turk's head knots. [3] ((p,q) = q times around a circle in the interior of the torus, and p times around its axis of rotational symmetry.) Turk's head knots are easy to edit though hard to tie.
The eight crossings within the carrick bend allow for many similar-looking knots to be made. The lines in a "full" or "true" carrick bend alternate between over and under at every crossing. There are also two ways the ends can emerge from the knot: diagonally opposed or from the same side. The latter form is also called the double coin knot ...
The reef knot can capsize if one of its standing ends is pulled.. A knot that has capsized or spilled has deformed into a different structure. Although capsizing is sometimes the result of incorrect tying or misuse, it can also be done purposefully in certain cases to strengthen the knot (see the carrick bend [4]) or to untie a seized knot which would otherwise be difficult to release (see ...
Knot board [] on Elbe 1 (ship, 1965). A knot is an intentional complication in cordage [1] which may be practical or decorative, or both. Practical knots are classified by function, including hitches, bends, loop knots, and splices: a hitch fastens a rope to another object; a bend fastens two ends of a rope to each another; a loop knot is any knot creating a loop; and splice denotes any multi ...
The bowline knot is thought to have been first mentioned in John Smith's 1627 work A Sea Grammar under the name Boling knot. Smith considered the knot to be strong and secure, saying, "The Boling knot is also so firmly made and fastened by the bridles into the cringles of the sails, they will break, or the sail split before it will slip."
The 57-year-old Russian woman who stowed away on a flight from New York to Paris last week is set to return to the United States on Tuesday, a French airport official confirmed to CNN.
While they were a popular way of boarding a vessel or carrying out shipside maintenance during the era of wooden ships, and even as recently as the 1950s, their use today on board modern merchant ships is minimal due to obvious safety issues. Today, Jacob's ladders are used only to board lifeboats and liferafts and as a draft ladder. [4]