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People often use metal detectors to search beaches, parks and similar areas for lost items made of metal, such as coins or jewelry. The hobby typically involves scanning a specific area, sometimes removing surface debris, until the detector picks up an object. The person then digs into the ground to


Metal detectors work by sending and receiving electromagnetic fields. A search coil sends an electromagnetic field into the ground. That field energizes any metal object it contacts, then the object sends an electromagnetic field back up. Once that field reaches the search coil, it is detected and a


Learn to operate a metal detector by first practicing with metal items of different kinds to distinguish the different sounds the detector makes for each type of metal. If the beeps are not distinct enough between valuable metal and other metals, adjust the settings until it works for you.


A metal detector can be purchased from a wide variety of retailers and individual sellers in the United Kingdom. For instance, Tesco direct offers several varieties of metal detectors ranging from ?21.18 to ?85.00.


To make a metal detector, take an AM radio and tune it the highest end of the AM radio frequency, but not on a station that is broadcasting. Turn the volume up as loud as possible. The only noise heard should be static. Then, tape a calculator to the radio.


The first metal detector was invented in 1881 by Alexander Graham Bell. He attempted to use the device to locate a bullet in the chest of U.S. President James Garfield. Although the machine worked properly, Graham deemed it a failure because it was unable to locate the bullet.


An airport metal detector is an electronic device used to detect metals. Some variations of metal detectors used in airports include multi-zone walk-through metal detectors, shoe analyzers and handheld detectors.


The White's electronics website is a reputable source for finding their brand of metal detectors, but various models and accessories can also be found on Ebay.com and Kellycodetectors.com. White's Electronics and the Kellyco Metal Detectors websites both offer brand new models and accessories.


The best metal detectors for 2015 include the Fisher F4, the Garret Ace 250 and the Teknetics Delta 4000, according to Top Ten Reviews. These metal detectors win praise for their efficiency and ease of use.


An informative electronic display and pinpoint control are key features in a high-quality metal detector for coins. Pinpoint control allows the user to find the exact location of the target under the coil, making it much easier to locate when digging.