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The Official Table of Drops, formerly issued by the British Home Office, is a manual which is used to calculate the appropriate length of rope for long drop hangings. Following a series of failed hangings, including those of John Babbacombe Lee , a committee chaired by Henry Bruce, 1st Baron Aberdare was formed in 1886 to discover and report on ...
The Greco-Roman schoenus, supposedly based on an Egyptian unit derived from a wound reed measuring rope, may also be given in translation as a "rope".According to Strabo, it varied in length between 30 and 120 stadia (roughly 5 to 20 km) depending on local custom.
The ropelength of a knotted curve is defined as the ratio () = / (), where is the length of and () is the knot thickness of . Ropelength can be turned into a knot invariant by defining the ropelength of a knot K {\displaystyle K} to be the minimum ropelength over all curves that realize K {\displaystyle K} .
The three major components of a rescue flotation device (RFD) are the lanyard, float, and harness. The lanyard and harness can trip up the lifeguard during the entry run, so care must be taken upon handling the RFD. The lifeguard must carry the rescue buoy until the beach visitors are not at risk of getting hurt. [1]
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While hanks may differ by manufacturer and by product, a skein is usually considered 1/6th of a hank (either by weight or by length). One source identifies a skein of stranded cotton as being 8.25 yards (7.54 m), of tapestry wool as being 10 yards (9.1 m), and crewel wool as being 33 yards (30 m).