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.
迪士尼、派拉蒙等大型影業公司隨即指控字節跳動侵犯版權，但這項技術引發的擔憂遠不止於法律層面。
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Жители Санкт-Петербурга устроили «крысогон»17:52
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