The True Story Of Metal Detectors
Behind every trade and sport is the history of its origin and that of the metal detectors that now help us to get hidden treasures is no exception when we talk about the particular and interesting:
Trouvé, more than electric cars
The first metal detector we know of was developed by the Frenchman Gustave Trouvé, a prolific inventor particularly skilled in the field of electricity who in 1874 developed a device for locating and extracting metallic objects such as bullets housed inside the body of the wounded, prototype of the metal detector used today.
The first metal detector
In 1881 the Scottish physicist Alexander Graham Bell gave the first practical use, to manufacture a metal detector that could detect bullets inside the bodies of injured patients, unfortunately, the device search did not work very well and only remained as part of history.
U.S. President James A. Garfield was shot twice on July 2, 1881, and although none of the wounds were fatal, one of the shells was lodged in the politician's back.
The metal detector developed quickly in an attempt to find the bullet lodged in the body of the twentieth president of the U.S. James Garfield after suffering the attack that would finally end his life 80 days later.
According to some versions of the account, the metal finder worked perfectly in the tests but did not find the killer's bullet partly because the structure of the metal bed on which the president rested disrupted the operation of the apparatus.
Although Graham Bell had detected a slight sound in his first test, the bullet could have been too deep to be detected by an initial metal detector that at the time did not have the necessary technology for this search.
The modern detector
The gold detector, as we know it now, arose when the German physicist Gerhard Fischer discovered that certain electromagnetic fields working at low frequencies usually in the sonorous order were distorted when passing near a mineralized stone or a large metallic object, so he shares this discovery with Albert Einstein who confirms that his discovery is correct and that it was theoretically possible to build a metal detector.
In 1931, Fischer patented the first professional metal detector in history, the Metalloscope. In 1941, the Pole Jozef Kosacki, creates the first metal finder to start mass production, he gives that design to the English and they use it widely in the Second World War to detect anti-personnel mines.
The gold detectors we know today are the models that were developed from White´s Electronics in the years 70´s with a novel system of discrimination of unwanted metals.
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