Which technology measures changes in the Earth's magnetic field caused by metallic objects? As people walk through a portal or gateway they are scanned and the results of the scan are compared against a database that contains the magnetic disruption of the Earth's field by a certain weapon.
A) Magnetic Wave Measuring (MWM)
B) Magnetic Gradient Measuring (MGM)
C) Passive Magnetic Millimeter (PMM) Scanning
D) Passive Millimeter Wave (PMW) Scanning

Question

Quizplus · Accepted Answer

Magnetic Gradient Measuring (MGM) technology is designed to detect changes in the Earth's magnetic field caused by metallic objects. This method is effective in security settings for scanning individuals as they pass through portals, identifying weapons or other metallic items by comparing the detected magnetic disruptions against a database.

Which Technology Measures Changes in the Earth's Magnetic Field Caused