“李庭博图”，这样的东西是怎么做出来的？

有关此物的详细信息：
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这个使用加速器把电子打进有机玻璃去，然后从外部用一个尖端诱发尖端放电，形成图案。
引用：
•What are these?
•Captured Lightning sculptures are branching patterns of internal fractures that have been permanently captured deep inside various shapes of crystal-clear plastic. Technically known as Lichtenberg Figures, they were created by carefully trapping and discharging millions of volts of electrical charge inside pieces of clear acrylic using a high-energy particle accelerator. These complex, permanent figures are formed when the trapped charges suddenly escape in a brief, lightning-like discharge. The intensely hot sparks leave behind permanent "fossilized" tree-like chains of microscopic fractures and tubes that reflect light like microscopic mirrors. Captured Lightning sculptures are fully discharged and are completely safe. They combine the technologies of particle beams and polymer physics with the natural beauty of fractals to create unique creations of scientific art.