1. Downward Positive Cloud-to-Ground Lightning Flash Triggers Upward Positive Leaders from Towers

    01:48

    from ZT Research Added 132K 259 0

    A positive cloud-to-ground lightning flash triggers upward positive lightning leaders to form from three television towers in Rapid City, South Dakota. Filmed at 9,000 images per second, the video…

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    • Upward Lightning from a Tower

      00:57

      from ZT Research Added 81.4K 93 0

      An upward lightning flash develops from a television tower in Rapid City, South Dakota. Filmed at 7,207 images per second.

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