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The chirp rate is not that fast, no more than about 3 per second in hot weather.
It is usually measured in chirps per minute, and because it varies with the cricket's metabolism, it is considered a way to determine the approximate outdoor temperature. The relationship is called Dolbear's Law, for Amos Dolbear, who calculated it using the snowy tree cricket in 1897. If used for field crickets, the calculation may be off by plus or minus 2 degrees depending on the age of the cricket.
- If you count the number of chirps in 15 seconds and add 40, you have a Fahrenheit temperature.
(a variation on this is chirps in 15 seconds, and add 37)
- If you count the number of chirps in 8 seconds and add 5, you have a Celsius temperature.
e.g. at 68F/20C, the count should be about 112 chirps per minute.
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How can listening to a cricket chirp in the summer help us figure out the temperature?
you can take the number of times it chirps in 25 seconds and add 40 to it it has to be above atleast 45 to work
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The crickets does in fact chirp more in hotter weather than in cold weather.Crickets chirp a lot when is hot. They chirp few when is cold.Answer:The relation between the crickets chirping and temperature is well known. Bearing in mind that crickets seem to be on the Fahrenheit scale:Count the number of chirps the cricket makes in 1 minute (60 seconds)Subtract 40 from this number.Divide the result by 4Add 50.The result of this calculation is close to the temperature of the environment the cricket is in.As an example, if the cricket chirps 120 times in one minute then the temperature is about 50 + (120 - 40)/4 = 70o F.
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