The Preparatory Commission for the Comprehensive Nuclear Test-Ban Treaty Organization (PC-CTBTO) has what could be considered a difficult job in the least: getting the world ready for a world without nuclear missiles, if the Nuclear Test-Ban Treaty is finally enforced. Though with North Korea currently conducting nuclear tests, that world feels pretty far away. But even if the PC can't single-handedly end nuclear weapons, it can certainly monitor them and their testing. There's where places like Infrasound Station 18 (IS18) come into play.

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IS18 is made up of an eight-element infrasonic array that is divided two sub-arrays equipped with wind noise reduction systems and a Central Processing Facility (CPF). All of these elements are located near the coastline, and an all-terrain vehicle is needed to access any of them.

Once collected, data from the IS18 is then transferred to the International Monitoring SystemLab in Vienna for further examination. Even if the CTBTO isn't in full effect yet, its listening stations around the world are invaluable for detecting new nuclear testing.

Source: Tom Scott

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