Touch screen and cold fingers



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  1. #1
    mos
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    Tom Sawyer mos's Avatar
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    Default Touch screen and cold fingers

    Is it just me or did someone else recognize that too. I read for a while today. At first I had warm fingers, but it is realy cold in Germany at the moment. After a while my fingers started getting cold and I recognized that the touchscreen did not react the way it did before.
    So I started rubbing my thumb so it gets warmer and voilá, the touchscreen works perfect again. Guess it does not like cold fingers. Well, on the other hand, who does?!
    so long,
    mos

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  3. #2
    Benjamin Button ktrek's Avatar
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    Default Re: Touch screen and cold fingers

    When I first got my nook I noticed that the screen was not as responsive when your fingers are cold but it may also be that it's not as responsive if the nook itself is cold too. I also found that rubbing the screen quickly seemed to reactivate it's response. Lately I haven't had any problems with though. It probably works on 99% of my swipes.

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  4. #3
    Puck Bamrz's Avatar
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    Default Re: Touch screen and cold fingers

    Mos, we have touch screens at work and they also don't work as well when my fingers are cold.

    Sue
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  5. #4
    vherub
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    Default Re: Touch screen and cold fingers

    interesting, I thought the screen was pressure sensitive and heat sensitive, so coldness wouldn't matter.
    Will have to try a stylus out and see.

  6. #5
    Tom Sawyer
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    Default Re: Touch screen and cold fingers

    Quote Originally Posted by vherub
    interesting, I thought the screen was pressure sensitive and heat sensitive, so coldness wouldn't matter.
    Will have to try a stylus out and see.
    Pressure and heat has no effect on the screen. It's actually a http://en.wikipedia.org/wiki/Touchscreen#Capacitive"]capacitive screen[/url], meaning it effects a tiny electrical charge when you touch the screen.

    For the charge to work, there must be conduction between you and the screen. That's why most stylus don't work - they aren't conductive. It's also why if your hands are dry it doesn't work as well. When your hands are cold or dry you aren't producing as much skin oil, and the conductivity of your hand is greatly reduced.

    If you want a stylus, use one made specifically for an iPhone / iPod Touch like the following:

    http://tenonedesign.com/stylus.php
    http://www.dagi.com.tw/

    The Pogo from Tenonedesign.com above seems to be the favorite.
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  7. #6
    Tom Sawyer
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    Default Re: Touch screen and cold fingers

    Thanks CyberMage!

    I was actually wondering about that myself. I knew it was a capacitive screen, but couldn't figure out why cold hands made a difference. I noticed this happening with my iPhone a lot, and it confused the heck out of me. HAHA

    I learn something new everyday.

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