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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.。关于这个话题，Line官方版本下载提供了深入分析
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If you want to use audio from another stock site or your own audio tracks, you can upload them in the Uploads tab or from the more option.。关于这个话题，爱思助手下载最新版本提供了深入分析
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