Retention Of Vision

	Retention Of Vision Retention of vision is a conjuring term referring to the perceived image of an object during a vanish (usually associated with vanishing coins). In a retention of vision vanish In the retention of vision vanish, the magician places a coin or small object between the fingers and the thumb of the right hand. The left hand is palm up with the palm slightly tilted towards the audience. The right approaches and displays the o ..., the spectator sees a coin placed on a palm and as the fingers are closed around the coin it is secretly removed, but because the retina still retains a fleeting image of the coin for a fraction of a second, the spectator will be convinced that the coin was placed in the hand, when in fact it wasn't. It works due to the phenomenon known as persistence of vision, which is in wide use in animation and related fields too. Magic (illusion) {{Magic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Magic (illusion) Magic, which encompasses the subgenres of illusion, stage magic, and close up magic, among others, is a performing art in which audiences are entertained by tricks, effects, or illusions of seemingly impossible feats, using natural means. It is to be distinguished from paranormal magic which are effects claimed to be created through supernatural means. It is one of the oldest performing arts in the world. Modern entertainment magic, as pioneered by 19th-century magician Jean-Eugène Robert-Houdin, has become a popular theatrical art form. In the late 19th and early 20th centuries, magicians such as Maskelyne and Devant, Howard Thurston, Harry Kellar, and Harry Houdini achieved widespread commercial success during what has become known as "the Golden Age of Magic." During this period, performance magic became a staple of Broadway theatre, vaudeville, and music halls. Magic retained its popularity in the television age, with magicians such as Paul Daniels, David Copperfield ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Visual Perception Visual perception is the ability to interpret the surrounding environment through photopic vision (daytime vision), color vision, scotopic vision (night vision), and mesopic vision (twilight vision), using light in the visible spectrum reflected by objects in the environment. This is different from visual acuity, which refers to how clearly a person sees (for example "20/20 vision"). A person can have problems with visual perceptual processing even if they have 20/20 vision. The resulting perception is also known as vision, sight, or eyesight (adjectives ''visual'', ''optical'', and ''ocular'', respectively). The various physiological components involved in vision are referred to collectively as the visual system, and are the focus of much research in linguistics, psychology, cognitive science, neuroscience, and molecular biology, collectively referred to as vision science. Visual system In humans and a number of other mammals, light enters the eye through the cornea and is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Retention Of Vision Vanish In the retention of vision vanish, the magician places a coin or small object between the fingers and the thumb of the right hand. The left hand is palm up with the palm slightly tilted towards the audience. The right approaches and displays the object on the left palm for a second or so, held on opposite sides of a diameter. Then the right hand moves away empty as the fingers of the left hand close over the object. After a brief pause the left hand is shown empty and the coin has disappeared. In some versions the right hand can also be seen empty, leaving no clue as to where the coin went. Originally attributed to T. Nelson Downs, a famous magician from the late Victorian and Edwardian eras who specialised in coins, the vanish has been improved by Dai Vernon and many other 20th-century magicians who all added variations to improve the original concept that an object displayed for a short length of time leaves an image on the retina that may persist for a further short time after ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]