Newton's law of motion forms the foundation of classical mechanics. 牛顿的运动定律构成传统力学的基础。
This is often expressed by saying that in case of large quantum numbers quantum mechanics "reduces" to classical mechanics and classical electromagnetism. 通常可以表示为大量子数目情形下量子力学减少到经典力学和经典电磁学。
Classical mechanics is a beautiful subject. 经典力学是一门充满魅力的学科。
These concepts were firmly entrenched in the mathematical formulation of classical mechanics. 这些概念在经典力学的数学表述中根深蒂固。
Newton law is the basis of classical mechanics, the study of movement speed far less than the speed of light macro object; 古典力学是以牛顿定律为基础,研究运动速度远小于光速的宏观物体的运动;
And, as I mentioned, we left off and as we started back here to describe the atom and how the atom holds together the nucleus and the electron using classical mechanics. 我之前提及过,我们上次,讲到应用经典力学如何描述,一个原子以及原子如何把质子,和电子束缚在一起,今天我们要。
Also, when we're looking at the Schrodinger equation, it allows us to explain a stable hydrogen atom, which is something that classical mechanics did not allow us to do. 当我们看一个薛定谔方程的时候,它给出一个稳定的氢原子,这是在经典力学中做不到的。
One can make a plausible guess as to how to get the proper equation for quantum mechanics from classical mechanics. 我们可以似乎合理地推想如何从经典力学得到量子力学的适当方程。
Mathematical Methods of Classical Mechanics 经典力学中的数学方法
An equation known as the Schrodinger equation describes how wave functions change in time, a role similar to Newton's second law in classical mechanics. 已知的薛定谔方程描述了波函数怎样及时改变,类似经典力学里的牛顿第二定律的角色。
Based on the differential equation derived from classical mechanics, an extended proportional navigation with no restrictions on the velocities of missile and target is presented in this paper. 在传统的动力学微分方程的基础上提出了一种扩展的比例导引法,并给出了该导引规律下的相对弹道方程。
In this final lecture, I return to the demonstration given at the beginning of the course, and explain the main phenomena of the Euler disk based on what we've learned about classical mechanics. 在这最后一课中,我们会回到第一节课所给的例子中,现在我们可以利用我们所学的关于经典力学的知识去解释欧拉盘的现象了。
Statistical mechanics: Branch of physics that combines the principles and procedures of statistics with the laws of Both classical mechanics and quantum mechanics. 统计力学:物理学的分支,将统计学的原理和方法与经典力学和量子力学的定律结合起来。
That never happens in classical mechanics, because there are always levels there. 这在经典力学中绝不会发生,因为那总是有能级。
That's a deterministic way of doing things, that's what you get from classical mechanics. 与核子的半径,是从经典力学中得到的,但我们从量子力学模型,知道的事实是。
It is showed that the classical limit of the double wave description could have the same results as those of pure classical mechanics. 讨论含时外电场中带电谐振子的双波描述,给出相关物理量的时间演化方程,得到双波描述的经典极限与纯经典描述相一致的结论。
Today's university physics theory, Newtonian mechanics does not apply to microscopic particles and high-speed moving objects, so the theory of classical mechanics is incomplete. 今日大学物理理论认为,牛顿力学不适用于微观粒子和高速运动的物体,因此经典力学理论是不完备的。
In the limit of large quantum numbers quantum mechanics goes over into classical mechanics. 在大量子数的极限情况下,从量子力学过渡到经典力学。
If I've got classical mechanics, then that means it's vibrational energy. 如果我有经典力学,那意味着它的振动能。
Human movement is a classical mechanics scope of the study. 人体的运动也属于古典力学研究的范围。
And if we have a classical mechanics picture of matter, then there would just be continuous states. 如果我们认为物质微观上满足经典力学,那么这些状态是连续的。
So their mathematical knowledge of Newton's theory of classical mechanics is the synthesizer. 于是将自己的数学知识牛顿是经典力学理论的集大成者。
As relativity "overthrow" classical mechanics and overthrow it is not really be the same, and only limited its movement and the applicable scope. 正如相对论“推翻”经典力学并不是真正推翻它一样,而只是限定它的运动与适用范围。
And today we'll finish that discussion, and, of course, point out actually the failure of classical mechanics to appropriately describe what's going on in an atom. 结束这部分的讨论,当然的,要指出经典力学,在描述原子内部,情况时是失败的。
This freshman-level course is an introduction to classical mechanics. 这门课程针对大学新生开设,主要介绍经典力学。
Quantum mechanics showed classical mechanics to be incorrect for describing the internal motions within atoms. 量子力学证明,用经典力学描述原子内部的运动也不正确。
Quantum mechanics and relativity have revealed the boundaries of validity of classical mechanics. 量子力学和相对论,揭示了经典力学的适用范围。
I finally got it. I got it as a result of looking at quantum mechanics and comparing it to classical mechanics. 通过把量子力学原理和经典力学原理相比较,我现在终于把它给弄明白了。
Classical mechanics and electromagnetism were inadequate to explain the motion of electrons with the atom. 经典力学和经典电磁学不足以解释电子在原子内的运动。
It follows from the principle of relativity that Newton's second law of motion, although fundamental in classical mechanics, only has an approximate and by no means complete validity. 由相对论原理可知,牛顿运动第二定律尽管是古典力学中的基本原理,但只是近似的,而绝不是完全正确的。