光速

The group velocity is estimated as 1/35 of the light speed in vacuum.

群速度估计为真空光速的1/35。

This does indeed turn out to be smaller than T for any u, v between 0 and c, but this is not immediately obvious, and I do not know of a qualitative explanation (similar to Harald's explanation of the non-relativistic case) of this.

Terence Tao的回复评论中，对第3题做了解释：确实是当时在机场的自然想法；一开始计算时出过错；也算是稍有趣的问题；要假设接近光速，才有可能发生明显的差异。

Heating effect of tissues with the speed of light is a known effect of high power microwave and electromagnetic pulse weapons.

以光速运行的大功率微波被用在了电磁脉冲武器上，这是大家都知道的。

Heinrich Rudolf Hertz proves that electricity is transmitted at the speed of light.

海因里希。鲁道夫。赫兹证实电是以光速传播的。

What happened, of course, was that when the starship reached the threshold of light speed, it also reached that boundary between "normal" space and hyperspace.

当然，所发生的情况是，在飞船的速度接近于光速时，那也就到达了"正常的"空间和超空间的交接之处。

Of Einstein's special theory of relativity, a good solution to the speed of light for all inertial reference frame of the observer are constant speed c.

爱因斯坦的狭义相对论，很好地解决了光速对所有惯性参照系的观察者均为恒速c的问题。

The energy equivalent to the mass of a particle at rest in an inertial frame of reference; equal to the rest mass times the square of the speed of light.

在一个惯性坐标系中与物体静止质量相当的能量；等于静止质量乘以光速的平方。

Examining the mass of the photon is a very important way to test "invariance of the velocity of light".

检验光子的静质量对验证"光速不变原理"这一狭义相对论的理论基础有着重要的意义。

Locality of action shows itself in the finite speed of light, in the inverse square law of fields, and in macroscopic statistical effects, such as rates of reaction and the speed of sound.

作用力的局限性体现在光速是有限的，体现在场的平方反比定律之中[6]，还体现在宏观统计效应上，如反应速度和音速等。

Special discussion and probe are placed on the object AO 0235+ 164, as a member of BL Lacertae, whose radio structrue and some special physical properties, including VLBI observation and data post processing, periodic variation of the jet positional angle, superluminal montion and the mass of the central engine are studied and discussed.

着重探讨了作为BL Lacertae型天体的一员，AO 0235+164的射电结构及其一些特殊的物理性质，包括VLBI观测和数据的后处理、喷流位置角的周期性变化、视超光速运动和中心天体质量的估算。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。