1.21 Gigawatts!

Less than two seconds in real-time, this video of a lightning strike in Rapid City, South Dakota is spectacular. The video is slowed down to 9,000 frames per second. ZT Research describes the video as a preceding downward positive ground flash that triggers upward leaders from seven towers, three of which are visible in the video. I love how hundreds of “mini strikes” flicker around the central strikes. ZT Research has more cool lightning strike videos on their site.

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