Just a bit of barely related trivia. At many FAA ATC facilities in the drier areas of the U.S., Humidifiers have had to be installed in the equipment rooms. Seems the conditioned air in some facilities became soooo dry, the equipment was prone to problems caused by static discharges. At many places, we have had to use humidifiers, anti-static mats and carpets, and re-done the grounding.
Used to be able to knock out a controller's entire communications by sliding your feet on the carpet a few times, and then touching his com panel....
