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我记得本网的物理界博主张操说电流速度超了光速,徐晓还用实验测了测。
我现在有个问题:电流速度与电子速度有什么关系?
因为刚才看到一个新闻,《科学家测验电子速度的上限》:
Scientists test upper limits of electron speed
The fastest electronic devices currently send information at speeds of several gigahertz, a
billion oscillations per second.
Some fiber-optic cables feature frequencies approaching a terahertz, a thousand billion oscillations.
The next benchmark is the petahertz, a thousand times faster than the fastest fiber-optic cables.
NOTE: gigahertz,千兆赫; terahertz,太(拉)赫(频率单位,等于百亿赫); petahertz, one quadrillion (10 15) hertz.| a very large unit of electrical frequency that is equivalent to one quadrillion hertz |
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