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dahdahdahdancer.livejournal.com) wrote in
davis_square2008-12-14 03:25 pm
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Lost FOX TV signal
I'm addicted to the Sarah Connor Chronicles (Monday at 8:00) on FOX 25. Mysteriously, the FOX signal vanished a few days ago (I get snow, just snow), although other stations come through as always. I still use rabbit ears (hey, it's cheaper than cable or satellite and I'm on a budget). Time is running out - the SC Chronicles are on tomorrow night! Has anyone else lost the FOX 25 signal?
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The illusion in question is called "persistence of vision", where human eyes don't register things that happen in less than 1/30th of a second. This figure may be different for other species, and dogs might very well see the picture being "painted" on the CRT. Just like that line you see if you try to take a picture of a TV.
However, I don't know how dogs feel about LCD or plasma.
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Also, CFL bulbs still flicker at the usual 60 Hz since they are powered by the same mains power as other fluorescent bulbs, but their phosphorescent coating allows them to maintain some glow during the low part of the cycle thereby making the flicker a little less apparent.
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I believe the CFL bulbs have electronics that creates a higher frequency ( probably required b/c the small tube ). On the box there is usually a disclaimer like "this product may interfere with radios, etc"