单词speed of light
un.: 光速
光速
If that were true for galaxies, the most distant visible objects in the sky would be receding at velocities just shy of the speed of light.
如果这对于星系也是正确的，那麽天空中可见的最遥远物体，就会是那些远离速度仅仅略小于光速的天体。
Europa is so far away that even at the speed of light, it would take more than an hour for the command just to reach the vehicle.
木卫二很远，即使用光速指令到达飞行器也要花一个多小时。
If a rocket was one day able to travel at a tenth of the speed of light, it would take 200 years to make the journey.
如果有朝一日，人类能乘坐以十分之一光速飞行的火箭进行星际旅行，抵达Gliese581g需要花费200年。
I was all set to do it and I was thinking, "Aw man, " I was just going to impose upon the powers that be, and measure the speed of light.
当我决定给你们做这个实验的时候我很兴奋地在想，“老天”我只是想不断加强这方面的能力，来测量光速。
Moving to the other end of the scale, our ancestors never had to navigate through the cosmos at speeds close to the speed of light.
再谈一谈尺度的另一端，我们的祖先从来不需要在一个接近光速的宇宙中操纵自己的身体。
Since the speed of light is well known, any delay in receiving the satellite"s signal can be converted into a distance.
由于光速广为人知，接受卫星信号时的任何时间迟缓都能折算出距离的远近。
If spaceships that can fly faster than the speed of light were built, a day on board would be equivalent to a year on Earth.
如果太空飞船的速度能超过光速，船上的一天将相当于地球上的一年。
It varies with the total end-to-end length of the network connection, with all signal propagation being limited by the speed of light.
它取决于网线的长度，并且所有信号的传输速度不能大于光速。
My students in El Cerrito -- with my help, of course, and with the help of a very beat up oscilloscope, measured the speed of light.
我在ElCerrito的学生通过我的帮忙和一个非常陈旧的示波器的帮忙，来测量光速。
In radiation, the heat passes directly through space in the form of photons, tiny packets of energy travelling at the speed of light.
热量以光子的形式直接穿过空间进行传导，这种微小的能量包以光速传导。