Irradiating a beam of electrons from a 5 million volt particle accelerator into a block of acrylic causes the electrical “treeing” you see above. This particular hunk costs $175.

Captured Lightning: Lichtenberg Figures | Boing Boing Gadgets

Irradiating a beam of electrons from a 5 million volt particle accelerator into a block of acrylic causes the electrical “treeing” you see above. This particular hunk costs $175.

Captured Lightning: Lichtenberg Figures | Boing Boing Gadgets

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