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David Roth (March 13, 1952 – January 13, 2021) was an American magician widely regarded as one of the world's greatest coin magicians. [1] Roth was an important contributor to Richard Kaufman's Coinmagic, an influential text on contemporary coin technique; his major work was chronicled in David Roth's Expert Coin Magic, a book written by Richard Kaufman.
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.
Coins or currency which must be accepted in payment of debt. legend The principal inscription on a coin. [1] lettered edge The outside edge of a coin containing an inscription. [1] low relief A coin with the raised design not very high above the field. luster The appearance of a coin's ability to reflect light; brilliance.
Will Goldston's trick of passing a coin through his sleeve. Coin magic is the manipulating of coins to entertain audiences. [1] Because coins are small, most coin tricks are considered close-up magic or table magic, as the audience must be close to the performer to see the effects. Though stage conjurers generally do not use coin effects, coin ...
A Coddington magnifier is a magnifying glass consisting of a single very thick lens with a central deep groove diaphragm at the equator, thus limiting the rays to those close to the axis, which minimizes spherical aberration. This allows for greater magnification than a conventional magnifying glass, typically 10× up to 20×. Most single lens ...
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 plastic Fresnel lens sold as a TV-screen magnifier A sheet magnifier consists of many very narrow concentric ring-shaped lenses, such that the combination acts as a single lens but is much thinner.