How electricity carves intricate, fractal patterns into solid wood
In short: Lichtenberg figures are stunning branching patterns created by high-voltage electricity. This video explains the physics of how non-conductive surfaces are transformed into conductive pathways, creating a permanent visual record of a lightning-like strike.
The process begins by brushing a non-conductive material, such as wood, with a salt solution to enable conductivity. When high-voltage electricity is applied between two points, the intense heat evaporates water and burns away wood fibers, leaving behind carbon. Because carbon conducts electricity, it creates a pathway that allows the current to advance as a conductive front. These fronts eventually meet, resulting in a bright flash and a permanent branching pattern.
The video highlights that these figures are essentially a controlled simulation of how lightning travels through matter. Because the voltages and currents required to produce these patterns are incredibly high, the process is dangerous and should never be attempted outside of a professional laboratory setting.
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Sources
- Summary by Intellect · source: Burning Lightning into Wood: Lichtenberg Figures
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