agent00pi: agent00pi: Frederf: nmrsnr:What this article is saying is that the only part of light waves that have to obey the speed of light is the group velocity, because that's what actually carries the information.You're saying that the real wave is limited to C but can be expressed as Fourier analysis where some of the elements are not limited to C?Not quite. Without getting into the heavy relativity type stuff, he's saying that individual (frequency) components of a complex waveform don't necessarily have to propagate at the same velocity as the overall waveform. Fourier analysis is just a tool for identifying which frequency components are present.Phase velocity is a strange concept.Actually, disregard that. I just repeated you with different phrasing/sleeps...
Links are submitted by members of the Fark community.
When community members submit a link, they also write a custom headline for the story.
Other Farkers comment on the links. This is the number of comments. Click here to read them.
You need to create an account to submit links or post comments.
Click here to submit a link.
Also on Fark
Submit a Link »
Copyright © 1999 - 2017 Fark, Inc | Last updated: Jan 24 2017 15:39:44
Runtime: 0.224 sec (224 ms)