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...

which (ground penetrating radar) has been employed in tandem with metal detectors. Acoustic methods can sense the cavity created by mine casings. Sensors...

and reception of communication signals, or for detection of metal objects in metal detectors or vehicle presence indicators. A common modern use for induction...

between a crystal and a metal was discovered in 1874 by Karl Ferdinand Braun. Crystals were first used as radio wave detectors in 1894 by Jagadish Chandra...

According to some accounts, the metal detector worked flawlessly in tests but did not find Guiteau's bullet, partly because the metal bed frame on which the President...

The Mine detector (Polish) Mark I (Polish: wykrywacz min) was a metal detector for landmines developed during World War II. Initial work on the design...

noun or a noun phrase. Take the English examples heavy metal detector and heavy-metal detector. The former example contains only the bare adjective heavy...

nugget of fine-quality[vague] that was found by Kevin Hillier using a metal detector near Kingower, Victoria, Australia on 26 September 1980. Weighing 875...

metal detector use. In 1937, he patented his metal detector. He died 1988 in Palo Alto. Although the actual inventor of the hand-held metal detector is...

metal allergies. Women wearing an underwire bra have in a few rare instances been subjected to extra scrutiny when their bra set off metal detectors at...