Leonardo da Vinci is usually credited with conducting the first systematic study of friction in the late 15th century, a subfield now known as tribology that deals with the dynamics of interacting surfaces in relative motion. Da Vinci's notebooks depict how he pulled rows of blocks using weights and pulleys, an approach that is still used in frictional studies today, as well as examining the friction produced in screw threads, wheels, and axles. The authors of this latest paper used an experimental setup similar to da Vinci's.
Anthropic 今天向外展示的「合作」姿态，听起来温和，甚至有点示好。市场也在一夜之间被安抚了，但没人真正回答那个根本问题：AI 冲击职场的终点，到底是人和 AI 一起干活，还是 AI 干活、人来担责，还是连这最后一道门槛也终将消失？
。关于这个话题，爱思助手下载最新版本提供了深入分析
基于这一背景，云耀深维在成立之初便确立了差异化发展路径：聚焦微米级高精度金属3D打印，剑指全球最高精度的打印效果。相较于传统常规金属打印100–200微米的公差水平，公司可将打印典型精度提升至2–10微米，典型表面粗糙度（Ra值）优化至约0.8微米，并实现10度以上多种结构的无支撑成型，这意味着微米级金属打印的部件几乎不再需要CNC加工，进而实现成本的有效下降。
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