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Comment Re:This can't happen soon enough (Score 3, Insightful) 25

Yelling doesn't work either. The problem is SINAD: Signal/(Noise+Distortion). Yelling amplifies the signal and the distortion and makes echos off the walls too. When talking to a deaf person like me, first turn off other sources of sound: TV, radio, lawn mowers, chain saws - get everyone else to shut up and then just talk a little more loudly and a little more slowly maybe as well.

Comment Re: Gun cameras have a different role (Score 5, Insightful) 77

Hmm, I used to build military observation systems and the few things I looked at are obvious lens reflections making dots that, if you try to chase them, keep moving as you turn. With complex lens systems, you can get multiple dots. I have even seen a big spot caused by my aircraft window when flying over clouds, so the effect is not limited to a camera system - an Airbus A320 window will also do!

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