摘要
从数学角度分析了物理量基本单位的特点,基本单位彼此独立意味着它们彼此之间没有相关性,一个基本单位不是另外一个或多个基本单位的函数,由此将导致一个基本单位对其他基本单位的微分/求导的结果等于零。用工程计算软件MATLAB详细验算了一种流传较广的E=Mc^2的计算过程,结果表明在正确使用现有数学工具的前提下,该方法不可能推导出E=Mc^2。讨论了物理速度、算法速度和相对运动速度三者之间的区别与联系。从物理量的基本单位出发推导了牛顿第二运动定律。引入质量体的概念,牛顿万有引力定律可以补充完善为:任意两个质量体通过连心线方向上的力相互吸引,引力传播速度就是产生该引力的质量体的运动速度,光速是引力传播速度的极限。牛顿第一定律可以补充完善为:一切质量体在没有受到外力作用或者虽然有外力作用但是外力作用小到可以忽略不计的时候,总保持匀速直线运动或者静止状态。当有且仅有一个质量体时,这是宇宙的初始状态,此时该质量体以光速运动。从质量体数量变化的角度描述了物理理论的体系架构。
The characteristics of basic units of physical quantities are analyzed from a mathematical point of view.The independence of basic units means that they have no correlation with each other.A basic unit is not a function of another or more basic units,which will result in the differential/derivative of one basic unit to other basic units being equal to zero.A calculation process of E=Mc^2,which is widely spread on the internet,is checked in detail by the engineering calculation software MATLAB.The results show that it is impossible to deduce E=Mc^2 by using existing mathematical tools correctly.The differences and relations among physical speed,algorithmic speed and relative motion speed are discussed.Newton’s second law of motion is derived from the basic units of physical quantities.By introducing the concept of mass body,Newton’s law of universal gravitation can be supplemented and perfected as follows:any two mass bodies attract each other through the force in the direction of the connecting center line,and the velocity of gravitational propagation is the velocity of the mass body generating the gravitation,and the light speed is the limit of the velocity of gravitational propagation.Newton’s first law of motion can be supplemented and perfected as follows:all mass bodies will remain in uniform motion in a straight line or at rest when they are not acted by external forces,or when they are acted by external forces,but the effect of external forces is too small to be negligible.When there is one and only one mass body,this is the initial state of the universe,at that time the mass body moves at the light speed.The system architecture of physical theory is described from the evolution of the numbers of mass bodies.
作者
王忆锋
WANG Yi-feng(Kunming Institute of Physics,Kunming Yunnan 650223,China)
出处
《科技视界》
2019年第34期8-13,33,共7页
Science & Technology Vision
关键词
物理量
基本单位
质量体
牛顿第一运动定律
牛顿第二运动定律
光速原理
牛顿万有引力定律
Physical Quantity
Basic Unit
Mass Body
Newton’s First Law of Motion
Newton’s Second Law of Motion
Newton’s Law of Universal Gravitation
Principle of Light Speed
