Metal Detectors in Colleges?

Answer Since the 2007 Virginia Tech shootings, there has been considerable debate over the necessity and appropriateness of metal detectors in colleges. On the one hand, the advantage of having metal dete... Read More »

Top Q&A For: Metal Detectors in Colleges

How harmful are metal detectors?

Almost no studies exist on the effects of mid-range electromagnetic frequencies used by metal detectors, but it seems unlikely they could cause any damage, according to Christopher J. Portier of th... Read More »

The Use of Metal Detectors at Schools?

In many school districts across America, metal detectors have become a common sight at the school gates. The idea behind them is to stop guns and knives from getting onto campus, which could result... Read More »

Who is the inventor of metal detectors?

Alexander Graham Bell invented the first metal detector in 1881. The device was invented with the hope that it might be able to assist doctors in finding a bullet lodged in President James Garfield... Read More »

Are there magnets in metal detectors?

Metal detectors use principles of electromagnetics to induce a magnetic field through the use of inductor coils. The magnetic field creates an electric current in the coin causing the metal detecto... Read More »