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Comment: Re:Not surprising (Score 1) 142

by Pinky's Brain (#47601731) Attached to: Extracting Audio From Visual Information

I'm not sure if this is true.

Definitely not for the coherent bit, trying to setup a second equally long beam path to be able to do interferometry would be an absolute pain and a half (needs to be pretty much exactly as long, coherence length of lasers is never going to be large enough to be able to interfere it without path length matching). Much easier to just intensity modulate the laser and measure the doppler shift of the modulating signal.

Not sure about the angle either, the window won't have much diffuse reflection ... but it will have some.

Q: How many IBM CPU's does it take to execute a job? A: Four; three to hold it down, and one to rip its head off.