By Anne Marie Helmenstine, Ph.D.
This Lichtenberg figure or 'electrical tree' was formed inside a 1.5" cube of polymethyl methacrylate (PMMA) using a 3 MeV electron accelerator.
Lichtenberg Figures with a Van de Graff GeneratorLichtenberg Figures in WoodQuestions About Making Lichtenberg Figures
Anne Marie Helmenstine, Ph.D.
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