Fractal burning

Fractal burning, Lichtenberg burning or wood fracking refers to a technique where a Lichtenberg figure is burnt into wood using high voltage electricity.

[1] The danger lies in the process relying on high voltages,[1][3][4][6] much higher than normal mains electricity.

[4] High voltages enable a potentially fatal current to pass through the body.

[4] Transformers from microwave ovens are frequently used for the technique because they are easily obtainable.

[9] A 2020 review noted that the mortality rate of fractal wood burning cases was "significant" and "exceedingly high".

Lichtenberg branching figure in leopardwood
A transformer from a microwave oven, featuring a prominent warning of the danger of high voltage.