{"id":66199,"key":"Crickets_as_thermometers","title":"Crickets as thermometers","latest":{"id":1206580,"timestamp":"2025-11-27T20:25:51Z"},"content_model":"wikitext","license":{"url":"https://www.appropedia.org/Appropedia:Copyrights","title":"CC-BY-SA-4.0"},"source":"[[File:Cricket insect 06.jpg|thumb]]\n\nCrickets can be used in a general way to determine the outside temperature. As a cold-blooded animal, the cricket's body temperature fluctuates according to the external temperature. The amount of chirps produced as a result can be used to roughly guess the temperature in both Fahrenheit and Celsius.\n\nThis is also known as Dolbear's law.<ref name=\"wp\">https://en.wikipedia.org/wiki/Dolbear's_law</ref>\n\n== Doing the experiement ==\n\nHead outside and find yourself some chirping crickets. Settle yourself comfortably and get ready to count.\n\n* For Fahrenheit: Count the number of cricket chirps you hear, over a period of 14 seconds. Add the number of chirps counted to the number 40. This will give you the approximate temperature in degrees Fahrenheit.\n* For Celsius: Count the number of cricket chirps you hear, over a period of 14 seconds. Add that amount to the number 8. Multiply by 5 and divide by 9. The final result will be an approximate of the temperature in degrees Celsius.\n** Alternatively, for Celsius, listen for 25 seconds, divide by 3, then add 4.<ref>http://lifehacker.com/5817534/how-to-tell-the-temperature-from-a-crickets-chirp</ref>\n\nThe type of cricket listened to may affect the outcome.\n\n== Sources and citations ==\n\n* https://en.wikipedia.org/wiki/Dolbear's_law\n* http://lifehacker.com/5817534/how-to-tell-the-temperature-from-a-crickets-chirp\n\n== References ==\n\n<references />\n\n{{Page data\n| license = CC-BY-SA-3.0\n}}\n\n[[Category:Insects]]\n[[Category:Classroom science experiments]]"}