我们都知道两种不同材质的物体摩擦可以产生静电，因为电子会在不同的材料上发生转移。那为什么相同的物质摩擦也会有静电？科学家通过各种实验，锁定了一个重要影响因素——空气中无处不在的游离碳分子。
更多信息，请参考论文原文：Grosjean et al. Adventitious carbon breaks symmetry in oxide contact electrification. Nature. (2026) http://t.cn/AXSOkbtx

视频Credit:
- Produced and presented by Shamini Bundell
- Research images by Thomas Zauner/ISTA, GTNaM/Universitat Autònoma de Barcelona, GRASP/Liège Université
- Animations by Dan Fox
- Cat covered in packing peanuts picture by Sean McGreath
- Stock images by Getty Images / A/V Geeks LLC - Footage / Marc Szeglat
- Supervising ProducerMaren Hunsberger
- With thanks to Cooper the cat

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