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This is the perfect head made of wood for a man. He goes to the fair for a perfect head. He wins the cup and goes on the merry-go-round. He sees the wild animals and touches the tiger. The tiger roars at the man with a wooden head. The man meets a boy at the fair and tells him his woes, and the boy solves the mystery of the man's missing head.
Loupe-mounted lights used to be fed by fiber optic cables that connected to either a wall-mounted or table-top light source. Newer models feature a more convenient LED lamp within the loupe-mounted light and an electric cord coming from either the conventional wall-mounted or table-top light source or a belt clip rechargeable battery pack.
A magnifying glass is a convex lens that is used to produce a magnified image of an object. The lens is usually mounted in a frame with a handle. A magnifying glass can be used to focus light, such as to concentrate the Sun's radiation to create a hot spot at the focus for fire starting.
A simple microscope uses a lens or set of lenses to enlarge an object through angular magnification alone, giving the viewer an erect enlarged virtual image. [1] [2] The use of a single convex lens or groups of lenses are found in simple magnification devices such as the magnifying glass, loupes, and eyepieces for telescopes and microscopes.
[2] [3] The phrase "Heath Robinson contraption" perhaps most commonly describes temporary fixes using ingenuity and whatever is to hand, often string and tape, or unlikely cannibalisations. Its continuing popularity was undoubtedly linked to Britain's shortages during the Second World War and the need to "make do and mend" .
A head-mounted display or helmet mounted display, both abbreviated HMD, is a display device, worn on the head or as part of a helmet, ...