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Thread: something i noticed...

  1. #1 something i noticed... 
    Moderator Moderator AlexP's Avatar
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    it's interesting, i just had my calculator (graphing calculator, with a big screen) sitting here on the computer desk, and when there's stuff on the screen (of the calculator), i can see lines moving across it, and i'm guessing they're from the computer screen. i've heard about the computer screen constantly 'resetting' itself, so would this be what i'm seeing? and why on the calculator screen?


    "There is a kind of lazy pleasure in useless and out-of-the-way erudition." -Jorge Luis Borges
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  3. #2  
    Jon
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    I just tried it, that's pretty cool. I think it would be the same reason that a camera shows a flickering computer screen with the light coming out of one and... ahh, who am I kidding, I've got no clue


    :-)
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    Forum Professor leohopkins's Avatar
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    It would be radioactive interference.
    The hand of time rested on the half-hour mark, and all along that old front line of the English there came a whistling and a crying. The men of the first wave climbed up the parapets, in tumult, darkness, and the presence of death, and having done with all pleasant things, advanced across No Man's Land to begin the Battle of the Somme. - Poet John Masefield.

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  5. #4  
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    This is what I think is happening.

    The computer screen and the calculator monitor both use a raster scan to display the image on the screen. Because of this the light from your computer screen is flickering, not continuous, but the flickering is at a faster rate than the eye can detect.

    If the rate of flickering of the monitor exactly matchsd the rate of the calculator screen raster scan, then only the part of the calculator screen that was being scanned in sync with the monitors's flickering would be visible. But since they are not exactly in phase, the lines will appear to move across the screen.
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  6. #5  
    Jon
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    Quote Originally Posted by leohopkins
    It would be radioactive interference.

    I'm gonna vote for this one. I just noticed that my computer screen has small lines on some of the status bars, especially in Mozilla. When I turn on my television, they begin to scroll.
    :-)
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