s-orbital writes "According to Colorado State's Rocky Mountain Collegian, CSU has installed four ThorGuard Lightning Prediction systems for under $25,000 to help prevent a lightning-related death or injury on campus. Colorado has the third highest lightning death rate in the US, and this system provides up to 20 minutes of early warning by 'analyzing the electrostatic field within a two-mile radius of the device. When a set amount of lightning-producing electrostatic buildup is detected, a horn will sound and a yellow strobe light will begin flashing, signaling that people in the area should seek shelter because lightning is imminent.'"
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