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Hair-Raising Technique Detects Drugs, Explosives On Human Body
sciencehabit writes Scientists have found a way to combine Van de Graaff generators with a common laboratory instrument to detect drugs, explosives, and other illicit materials on the human body. In the laboratory, scientists had a volunteer touch a Van de Graaff generator for 2 seconds to charge his body to 400,000 volts. This ionized compounds on the surface of his body. The person then pointed their charged finger toward the inlet of a mass spectrometer, and ions from their body entered the machine. In various tests, the machine correctly identified explosives, flammable solvents, cocaine, and acetaminophen on the skin.
guess to why they aren't more popular in weatern nations.
Yeah, I have a guess. There aren't any terrorists in western nations. The western nations are terrorist states terrorizing innocent travelers for political gain.