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Miles Rhodes,
Wine Taster
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Metal detectors are now sophisticated enough to be operated in fresh and sea water up to depths of 200 feet, allowing divers to search for sunken Spanish galleons and shipwrecks.
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John Carthy,
Gun Shop Sales Assistant
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Widespread use of metal detectors in school acts as a kind of social conditioning that poses a serious threat to the Fourth Amendment right to freedom from searches without probable cause.
Metal detectors in airports and sobriety check points on highways likewise burden the liberty of the majority as well as the minority and thus raise no issue of constitutional rights.
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Dave Simons,
Internet Entrepeneur
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Nowadays, metal detectors are hi-tec electronic machines with a variety of capabilities dependant on price.
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Tony Howell,
Skateboarder
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It is also not unusual to find smoke detectors hanging from the ceiling by their wires because these wires are metal which can withstand much more heat than plastics.
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Rob Verdann,
Afterdark Removalist
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Garrett Metal Detectors packs more high-tech power, features and versatility into its instruments than any other manufacturer so you can find lost treasure in no time at all.
Airport metal detectors should not disturb the action of the pacemaker, but they may cause the metal detector to sound.
Metal detectors are harmless to film but by rights you shouldn’t be carrying any items such as film through the metal detector anyway.
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Arthur Dawkins,
Astro-physicist
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Good metal detectors produce electromagnetic fields that cause currents to flow through nearby metal objects and then detect the magnetism that results.
What follows is a brief description of how metal detectors work and some information on the more advanced technology used in pulse induction metal detectors.
Metal detectors measure the same kinds of deviations caused by ferro-magnetic substances.
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Thomas Owens,
Police Officer
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Metal detectors and airport-type scanners are employed to search prisoners and their yard clothing for shanks -- prison slang for illicitly obtained pieces of steel sharpened on the cement floor of cells and fashioned into stabbing weapons.
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