Shear legs to the gin pole, derrick and tripod (lifting device). Shears are an A-frame of any kind of material such as timbers or metal, the feet resting on or in the ground or on a solid surface which will not let them move and the top held in place with guy-wires or guy ropes simply called "guys". Shear legs only need two guys whereas a gin pole needs at least three. The U. S. Army Field Manual FM 5-125 gives detailed instruction on how to rig shears. Fixed shear legs are most commonly found on floating cranes known as floating sheerlegs.
Common starfish mass strandings have occurred in Britain and elsewhere at such places as Holkham Beach in Norfolk in 2009, near Sandwich in Kent in 2008, and near Brighton ten days later. A similar occurrence occurred on the shore of the White Sea where vast numbers of starfish came ashore on a nine-mile stretch of beach in 2004. It was said that people could not "walk around them because the whole shore was full of starfish". Russian experts expressed mystification as to the cause of the stranding. Common starfish The common starfish or common sea star ("Asterias rubens") is the most common