wetting drying cycle duality: Drying: cracks form (breaking down) Wetting: cracks are channels for fluid flow Lightning: forward is slower, first, the air breaks down Return stroke: vastly more energy
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wetting drying cycle duality: Drying: cracks form (breaking down) Wetting: cracks are channels for fluid flow Lightning: forward is slower, first, the air breaks down Return stroke: vastly more energy