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长城是世界上七大奇观之一,作为世界上最大的军事防御工程,其建造工程浩大.本文主要根据明长城的调查数据,从物理知识着手,利用牛顿力学的知识分析讨论明长城的重力势能与做功,从而估算出建造明长城所需要的时间与劳动者,同时进一步估算了完成该工作所需要的粮食,突出了物理学在其他学科上的运用.
The Great Wall is one of the seven wonders in the world. As the largest military defense project in the world, its construction projects are vast. This article is based on the survey data of the Great Wall, starting with physics, using Newtonian knowledge to analyze and discuss the gravity energy of the Great Wall. And work to estimate the time and labor needed to build the Great Wall, and further estimate the food needed to complete the work, highlighting the use of physics in other disciplines.