Triple lightning strikes on Chicago's three tallest buildings, and an overall skyscraper lightning bonanza - June 30, 2014
Physics - First Spectrum of Ball Lightning
Balls of Light Caught on Surveillance Camera In Shreveport Club - YouTube
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Lightning zapped four of Chicago's tallest skyscrapers at once Monday. Here's how. - The Washington Post
Is This Video of a 'Globular Bolt' Real? | Snopes.com
Triple lightning strikes on Chicago's three tallest buildings, and an overall skyscraper lightning bonanza - June 30, 2014
Strangest Weather On Earth: Balls of Lightning! - YouTube
Triple lightning strikes on Chicago's three tallest buildings, and an overall skyscraper lightning bonanza - June 30, 2014
thunderstorm | Definition, Types, Structure, & Facts | Britannica
Stormy skies - Photos - The Big Picture - Boston.com
Bolts From the Blue: The Beauty of Lightning | TIME.com
What it's like to be struck by lightning - BBC Future
Spectacular lightning strikes accompany Chicago-area storms
Scientists capture the first ever footage of ball lightning | Daily Mail Online
ball lightning | atmospheric phenomenon | Britannica
Ball Lightning: Nature's Strangest Phenomenon | SD Entertainer Magazine
lightning | Voltage, Causes, & Facts | Britannica
How far away was that lightning?
New 'Destructive' Severe Thunderstorm Warning category to trigger wireless Emergency Alerts on mobile phones - ABC7 Chicago
The Bizarre Phenomenon of 'Ball Lightning' Has a Startling New Explanation
