Alvin Poh

Entrepreneur and all-round freedom-seeker

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  • Understanding What Paper Quality Means

    I know that I’ve been using “80 grams” paper, but I didn’t really understand why it was called “80 grams” until today. What does gsm mean? GSM is an abbreviation for grammage, or grams per square metre. It indicates the weight of a square metre of paper. Standard copy paper in Singapore is approximately 80 […]

    Alvin Poh

    May 5, 2007
    Miscellaneous
    Tips
  • How To Improve Laptop / Notebook Battery Lifetime

    One of the easiest things to kill is the battery of a laptop/notebook. In fact, it is common that some people may notice their laptop battery life growing shorter as the weeks go by. One reason why this is so is because of the way the battery is being used. To ensure that batteries last […]

    Alvin Poh

    April 15, 2007
    Miscellaneous
    battery, Gadgets, lifetime, Technology, Tips, usage
  • Microsoft Word =rand Automatically Creates Text

    Microsoft Word has a little known feature that inserts the following text into your document: The quick brown fox jumps over the lazy dog. The quick brown fox jumps over the lazy dog. The quick brown fox jumps over the lazy dog. The quick brown fox jumps over the lazy dog. The quick brown fox […]

    Alvin Poh

    April 7, 2007
    Miscellaneous
    Tips, Windows
  • Ideal Typing Postures

    In the ideal typing posture, muscle loads are minimized. This posture is achieved when the keyboard is below seated elbow height and the keyboard base is gently sloped away from the user so that the keys are accessible to the hands in a neutral posture. In this position the arms, shoulders, neck and back can […]

    Alvin Poh

    April 7, 2007
    Miscellaneous
    Health and Fitness
  • Ergonomic Tips on Healthy Laptop Usage

    Laptops are getting really pervasive. It used to be that laptops were the exclusive tools of the rich, or busy business people. These days, almost everyone owns a laptop. The problem with a laptop, however, is that it isn’t ergonomic – in fact, most people use their laptops in a way that will cause health […]

    Alvin Poh

    April 7, 2007
    Miscellaneous
    Health and Fitness
  • Replace/remove character in a String

    To replace all occurences of a given character : String.replaceAll(“n”, “”); // Remove all n String.replaceAll(“n”, “r”); // Replace n by r To replace a character at a specified position : public static String replaceCharAt(String s, int pos, char c) { return s.substring(0,pos) + c + s.substring(pos+1); } To remove a character : public static […]

    Alvin Poh

    April 4, 2007
    Miscellaneous
    Java
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