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2. Metal detector - Wikipedia

   en.wikipedia.org/wiki/Metal_detector

   A metal detector is an instrument that detects the nearby presence of metal. Metal detectors are useful for finding metal objects on the surface, underground, and under water. A metal detector consists of a control box, an adjustable shaft, and a variable-shaped pickup coil. When the coil nears metal, the control box signals its presence with a ...

3. Michael Rock (graphic designer) - Wikipedia

   en.wikipedia.org/wiki/Michael_Rock_(graphic...

   In 1994, Rock, alongside designers Susan Sellers and Georgianna Stout, founded 2x4, a design firm based in New York City. He is currently the Director of the Graphic Architecture Project at Columbia University 's Graduate School of Architecture, Planning and Preservation. He is also a member of the graphic design faculty at the Yale School of Art.

4. Unearth Your Next Hobby With These Expert-Recommended Metal ...

   www.aol.com/best-metal-detectors-uncover-buried...

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5. Gerhard Fischer (inventor) - Wikipedia

   en.wikipedia.org/wiki/Gerhard_Fischer_(inventor)

   Although the actual inventor of the hand-held metal detector is disputed, the hand-held metal detector was made in 1925 and was first patented by Dr. Gerhard Fisher in 1931. A metal detector had been invented some forty years earlier (1881) by Alexander Graham Bell for the sole purpose of locating a lead bullet in President James A. Garfield.

6. 7 Best Metal Detectors of 2023, Reviewed by Experts - AOL

   www.aol.com/7-best-metal-detectors-2023...

   The best metal detectors have a range of frequencies to detect different metals in different locations for a chance for find lost rings, old coins and gold 7 Best Metal Detectors of 2023, Reviewed ...

7. List of metal detecting finds - Wikipedia

   en.wikipedia.org/wiki/List_of_metal_detecting_finds

   This is a list of historically significant items found by metal detecting method, only excluding magnet fishing finds, since magnet fishing is usually considered a distinctively different and separate hobby from traditional metal detecting.