Today people and goods travel by jet aircraft and fast ships, and information is transmitted at the speed of light over the Internet.
人和货物通过喷气式飞机和快船来流动，而信息是通过互联网以光的速度传送。
If you could move at the speed of light, your time would stand still, if you could move faster than light, your time would move backward.
如果你能以光速运动，你的时间就会静止不动；如果你能以快于光速的速度运动，你的时间就会倒退。
Cherenkov light comes from these particles when the speed of light is exceeded.
切伦科夫光来自光速被超过时的这些粒子。
It is far from simply a radio beam passing through a vacuum at "the speed of light".
这远不像一束无线电波“以光速”穿过真空层那样简单。
Since neutrinos have a tiny mass, the speed should be very close to the speed of light.
因为中微子的质量非常小，所以它的速度应该非常接近光速。
Once your speed approaches the speed of light then Newtonian mechanics no longer works.
速度接近光速时,牛顿力学就超出适用范围了。
The APEX data shows that material in the jet is traveling at about half the speed of light.
APEX数据显示喷流中的物质正以一半光速的速度前进。
Radiation: composed of massless or nearly massless particles that move at the speed of light.
辐射：由以光速运行的无质量或近无质量粒子所构成。
Special relativity came first and is based on the speed of light being constant for everyone.
首先发布的是狭义相对论，它的基础是对于任何一个人来说，光速是恒定不变的。
These changes propagate through space at the speed of light in form of gravitational waves.
这个改变会以引力波的形式，以光的速度在太空中传播。
Nothing can escape a black hole's gravity because nothing can travel faster than the speed of light.
任何东西都不能逃脱黑洞的引力，因为没有任何东西的速度能超过光速。
The gravitational field is so strong that the escape velocity near it exceeds the speed of light.
重力场是如此的强大以致于靠近它的逃逸速度超过光速。
To accelerate an object to the speed of light, you'd need nothing short of an infinite amount of energy.
为了把一个物体加速到光速，你需要的简直是无限的能源。
"That can make it look like a particle has gone faster than the speed of light when it hasn't," he said.
“这可以让它看起来跑得像是比光速快，但实际并没有。”他说。
As you reach the speed of light, relativity calculations indicate that an object's mass becomes infinite.
如果达到光速，根据相对论可以计算出这个物体的质量趋于无穷。
It is so far from Earth that radio signals, traveling at the speed of light, take 16 hours to reach the spacecraft.
它与地球的距离如此之远，以致地球发出的无线电信号要以光速传播16个小时才能到达这部航天器。
When the telegraph first moved information over long distances at the speed of light, we'd hit a new turning point.
当电报首次以光速长距离传递信息时，我们迎来了转折点。
Its age, and the finite speed of light, means no astronomer can look beyond a distance of 13.7 billion light-years.
它的年龄及有限的光速意味着没有天文学家能超越137亿光年。
The latency cannot be less than the distance the electromagnetic signal has to travel divided by the speed of light.
延迟时间会大于或等于电磁信号传输距离除以光速的比值。
Einstein's famous equation, E=mc2, outlines how energy is equivalent to mass times the square of the speed of light.
这个道理可以参考著名的爱因斯坦质能方程式，E=mc2,能量E是质量m乘以光速c的平方项。
The planet is so far away, spaceships travelling close to the speed of light would take 20 years to make the journey.
这颗行星过于遥远，以接近光速飞行的宇宙飞船都要花费20年时间才能抵达。
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。
Since the speed of light is well known, any delay in receiving the satellite's signal can be converted into a distance.
由于光速为人熟知，接收卫星信号时的任何时间迟缓都能折算出距离的远近。
The MINOS experiment saw hints of neutrinos moving at faster than the speed of light in 2007 but has yet to confirm them.
MINOS实验曾在2007年发现了中微子速度超过光速的迹象，但仍有待证实。
Because nothing can theoretically travel faster than the speed of light, nothing escapes once it's passed the event horizon.
因为理论上没有任何物体的速度会快过光速，所以一旦进入视界，任何物体都不能逃离。
When the collider operates at full capacity, scientists say it will be able to smash particles at nearly the speed of light.
科学家说，当对撞机全速运转时，可以使粒子以接近光速的速度相撞。
Light zips along at the actual "speed of light", faster than which nothing can go, only when it is travelling through a vacuum.
只有在真空中，光的速度才能达到真正的“光速”，这是世界上最快的速度。
They are very nearly massless and thus, even at moderate energies, we'd expect them to travel essentially at the speed of light.
它们的质量非常接近零，因此，即使在中等能量下，我们也希望它们以光速传播。
We're going to use this imaginary train to get as close as possible to the speed of light and see how it becomes a time machine.
虚构的火车以接近光速的速度行驶，它如何变成一个时间机器呢？
"As an object approaches the speed of light, all sorts of interesting things happen," says theoretical physicist Richard Obousy.
“一个物体如果接近光速，那么各种有趣的事就会发生，”理论物理学家Richard Obousy说道。
应用推荐