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...

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...

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

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

A neckerchief (from neck (n.) + kerchief), sometimes called a necker, kerchief or scarf, is a type of neckwear associated with those working or living...