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Volume 23 No.1 May 2012
Do positive and negative lightning look different? Please compare the two images taken with a digital still camera using 20 sec exposures. For the +CG, there was prolific recoil leader activity on the positive leader branches where you see many branches near the tips. The more erratic leader directional change is apparent in the negative leaders of the -CG flash. The negative leader branches also remain bright and do not branch profusely near their tips. The photos and the caption are contributed by Tom A. Warner, South Dakota School of Mines and Technology.
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