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.
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由於現行台灣企業在招聘程序上「符合台灣法令」，這意味著巨大事件並非單一事件，任何供應商都可能因供應鏈涉及高額仲介費，而遭美國海關以「強迫勞動」為由扣留產品。林淑如指出，海外仲介費涉及母國監管，改革可先從台灣方面著手，例如廢除現行法規允許仲介向移工收取每月服務費。