• Question: I was just wondering, why does my hair stand on end when I take off my hat on a cold, dry day?

    Asked by danai to Indi, Jarv, John, Ken, Vicky on 12 Mar 2012.
    • Photo: Jarvist Moore Frost

      Jarvist Moore Frost answered on 12 Mar 2012:

      Static electricity! Believe it or not, as you took your hat off you stripped charged off your hair and built up a voltage of tens of thousands of volts!
      Because it’s cold and dry, there’s very little water in the air to take the electric charge away.

      It also helps if you hair is very clean, as the grease otherwise sticks it together 🙂

    • Photo: Indi Ghangrekar

      Indi Ghangrekar answered on 12 Mar 2012:

      Jarvist beat me to it, a physics question I actually knew the answer for 🙂

    • Photo: Vicky Young

      Vicky Young answered on 20 Mar 2012:

      Static electricity!!!!! I totally knew this question and it was physics!!!! (:

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