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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.，更多细节参见WPS官方版本下载
吴炜伦认为，他怀念的不是夜总会，而是“冇落闸嘅步骤”——以前尖沙咀几乎没有铺头落闸，一间倒下很快有人顶上。而现在，“十间铺有八间落闸”。拍戏时，他想重现当年的街景，却发现根本做不到，因为现实的街道已经空了。，详情可参考91视频