Muddy the baseballs

IF 17.6 1区 物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY Nature Physics Pub Date : 2025-01-16 DOI:10.1038/s41567-024-02778-5
Stefanie Reichert
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把棒球弄脏
人们对摩擦泥知之甚少:首先要过滤掉多余的水,然后用自来水冲洗——一个令人惊讶的细节——在进行某种处理之前,最后让它沉淀下来。普拉迪普和他的同事们用类似于美国职业棒球大联盟规定的方法在棒球上涂上泥巴。通过使用一系列技术,包括激光衍射、原子力显微镜和模拟投手抓球和投球的软摩擦学装置,研究小组从摩擦泥中获得了一些秘密。他们发现,摩擦泥是一种柔软的固体,主要由粘土和石英粉组成,还有少量的未知有机物质,这些物质都有助于材料的凝聚力。砂砾是另一种重要的成分。由于其流动特性,摩擦泥均匀地覆盖在棒球上,形成薄薄的一层,填充其表面的孔隙。这在大尺度上创造了更均匀的纹理。然而,在更小的尺度上,由于各种大小的颗粒粘在表面上,表面显得更粗糙。普拉迪普和他的同事们观察到,在扔球时,表面的沙粒会使摩擦力增加两倍,而干燥的泥浆也会增强附着力。这表明用摩擦泥处理棒球确实能提高它的抓地力。
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来源期刊
Nature Physics
Nature Physics 物理-物理:综合
CiteScore
30.40
自引率
2.00%
发文量
349
审稿时长
4-8 weeks
期刊介绍: Nature Physics is dedicated to publishing top-tier original research in physics with a fair and rigorous review process. It provides high visibility and access to a broad readership, maintaining high standards in copy editing and production, ensuring rapid publication, and maintaining independence from academic societies and other vested interests. The journal presents two main research paper formats: Letters and Articles. Alongside primary research, Nature Physics serves as a central source for valuable information within the physics community through Review Articles, News & Views, Research Highlights covering crucial developments across the physics literature, Commentaries, Book Reviews, and Correspondence.
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