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How to Use a Cricket as a Thermometer

Male crickets rub their wings together to attract females. You can measure the air temperature to within a few degrees by listening to a chirping cricket and applying a simple mathematical formula.

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    Difficulty:
    Moderately Easy

    Instructions

    Things You'll Need

    • Timers
    • Stopwatches
      • 1

        Count the number of times that the cricket chirps in 14 seconds.

      • 2

        Add 40 to this number. This will be the air temperature in degrees Fahrenheit.

    Tips & Warnings

    • Different species of crickets respond differently to the air temperature and will use slightly different calculations. This formula is based upon an average of common cricket species.

    • To calculate the temperature in degrees Celsius, count the number of chirps in 8 seconds and add 3.

    • The accuracy of these formulas decreases as the air temperature nears freezing.

    • A chirping cricket is considered to be a sign of good luck in some countries, such as Britain.

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    Comments

    • Rick Westwood Jan 18, 2011
      Dolbear's Law
    • GreenMomma Mar 12, 2009
      that's crazy! i had no idea!!!
    • GreenMomma Mar 12, 2009
      that's crazy! i had no idea!!!

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