TOM A WARNER / WEATHERVIDEOHD.TV / SCIENCE PHOTO LIBRARY TOM A WARNER / WEATHERVIDEOHD.TV / SCIENCE PHOTO LIBRARY
Ultra-high-speed footage of the formation of a lightning bolt, showing stepped leaders branching downwards. One manages to connect with an upward leader close to the ground, closing the circuit and creating a brilliant return stroke as the cloud discharges. Shot at 11,000 frames per second, in South Dakota, USA, in spring.
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