Physics - First Spectrum of Ball Lightning
Photos: Lightning over Chicago -- Chicago Tribune
Lightning zapped four of Chicago's tallest skyscrapers at once Monday. Here's how. - The Washington Post
Image of rare triple lightning bolt captured over Chicago's night sky
Ball lightning | Electric Discharge, Plasma & Atmospheric Electricity | Britannica
What it's like to be struck by lightning | Science | The Guardian
Watch: Video shows massive lightning bolt striking Boston - CBS Boston
Chicago Triple Lightning Strikes to Sears, Trump, Hancock - June 30 - YouTube
Ball lightning - Wikipedia
What it's like to be struck by lightning - BBC Future
Image of rare triple lightning bolt captured over Chicago's night sky
Image of rare triple lightning bolt captured over Chicago's night sky
Ball lightning: weird, mysterious, perplexing, and deadly
Strangest Weather On Earth: Balls of Lightning! - YouTube
Photos: Lightning over Chicago -- Chicago Tribune
Simultaneous lightning strikes light up Chicago skyline
Physics - First Spectrum of Ball Lightning
Record-Breaking Lightning Bolts Spark Excitement | Smart News| Smithsonian Magazine
Can you use the phone or take a shower during a thunderstorm? These are the lightning safety tips to know. - CBS News
Lightning | Voltage, Causes, & Facts | Britannica
Image of rare triple lightning bolt captured over Chicago's night sky
Triple lightning strikes on Chicago's three tallest buildings, and an overall skyscraper lightning bonanza - June 30, 2014
Image of rare triple lightning bolt captured over Chicago's night sky
Lightning - Museum of Science and Industry
Ian Wall's photographs of lightning storms goes viral - Chicago Sun-Times
