The Necker cube is an optical illusion that was first published as a rhomboid in 1832 by Swiss crystallographer Louis Albert Necker. It is a simple wire-frame...

variation is the portrait neckline. Deep or plunging neck These are low necklines, in either V, U or square shapes, that reveal various amounts of cleavage...

A carriage bolt (also called coach bolt and round-head square-neck bolt) is a type of bolt. It is also known as a cup head bolt in Australia and New Zealand...

Resonator guitars are of two styles: Square-necked guitars played in lap steel guitar style (also called a dobro) Round-necked guitars played in conventional...

linen cap and a dark gown over a kirtle. Her square-necked smock has a narrow row of embroidery at the neck, and she wears a jewelled collar or carcanet...

species of moss known as springy turf-moss in the United Kingdom, and square goose neck moss in the United States. It is widespread in Eurasia and North America...

blues players.: 38  Either type offers round necks (Spanish) or square necks (Hawaiian).: 38  Square necks are sometimes necessitated both by the use of...

guitar known as a "Dobro", a type of steel guitar with either a round or square neck, sometimes played with the musician standing and the guitar facing upward...

the square. Prior to the 19th century, Mishawum (later Charlestown) was only connected to the mainland (now Somerville) by an isthmus called "the neck"....

a horse's head and neck. It moves two squares vertically and one square horizontally, or two squares horizontally and one square vertically, jumping...