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Factorama (13/07/11)
You can roughly calculate the temperature outside using cricket chirps and a formula from the Old Farmer's Almanac.
A physicist by the name of Amos Dolbear discovered that the temperature outside determined the number of times a cricket would rub its legs together to create its mating sound.
To convert cricket chirps to degrees Fahrenheit, count number of chirps in 14 seconds then add 40 to get temperature. For example: 30 chirps + 40 = 70° F
To convert cricket chirps to degrees Celsius, count number of chirps in 25 seconds, divide by 3, then add 4 to get temperature. For example: 48 chirps / 3 + 4 = 20° C