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[器材]废弃白炽灯泡一只,口径略小于玻璃泡直径的圆筒(或烧杯)一个,学生用有机玻璃直尺两根附丝绸,橡胶棒一根附毛皮。
[Equipment] An incandescent light bulb is discarded. A cylinder with a diameter slightly smaller than the diameter of the glass bulb (or beaker) is used. Students use two plexiglass rulers to attach the silk, and a rubber rod is attached to the fur.