corkscrew and speed of sound. solid Member Posts: 171 Threads: 17 Joined: Nov 2019 Institution: Université de Bretagne Occidentale 04-21-2020, 07:39 AM (This post was last modified: 04-21-2020, 10:23 AM by solid. Edit Reason: references ) Dear Julien. For a test tube with L = 23.7 cm and D = 2.8 cm your program gives f = 375.0 Hz and c_air = 381 m/s, to high... Strange, but the standard "Audio spectrum" of phyphox gives f = 351 Hz (c_air = 345 m/s) - much more acceptable By the way the resonance peak of our "Resonance curve" gives f = 362 Hz ... It is very important to measure the temperature around the bottle of wine to be opened. I would suggest to add a feature to your program: determination of the temperature from c_air using a simple formula t = (c_air/20)² - 273 (°C) . A+ References: Peter Froehle,  "Finding the Outdoor Temperature Using a Tuning Fork and Resonance",  The Physics Teacher 44, 358 (2006); https://doi.org/10.1119/1.2336137 Jeffrey D. Goldader, "Determining Absolute Zero Using a Tuning Fork",  The Physics Teacher 46, 206 (2008); https://doi.org/10.1119/1.2895669 « Next Oldest | Next Newest »

 Messages In This Thread corkscrew and speed of sound. - by julien - 04-17-2020, 07:53 PM RE: corkscrew and speed of sound. - by solid - 04-19-2020, 12:24 PM RE: corkscrew and speed of sound. - by julien - 04-20-2020, 11:52 AM RE: corkscrew and speed of sound. - by solid - 04-20-2020, 03:34 PM RE: corkscrew and speed of sound. - by julien - 04-20-2020, 03:48 PM RE: corkscrew and speed of sound. - by solid - 04-21-2020, 07:39 AM RE: corkscrew and speed of sound. - by julien - 04-21-2020, 01:56 PM RE: corkscrew and speed of sound. - by julien - 05-08-2020, 01:10 PM RE: corkscrew and speed of sound. - by solid - 05-08-2020, 04:01 PM RE: corkscrew and speed of sound. - by julien - 05-08-2020, 07:42 PM RE: corkscrew and speed of sound. - by solid - 05-09-2020, 10:58 AM RE: corkscrew and speed of sound. - by julien - 05-09-2020, 11:46 AM RE: corkscrew and speed of sound. - by solid - 05-09-2020, 05:35 PM RE: corkscrew and speed of sound. - by julien - 05-09-2020, 06:43 PM RE: corkscrew and speed of sound. - by solid - 09-25-2021, 10:03 AM RE: corkscrew and speed of sound. - by Jens Noriʇzsɔɥ - 09-27-2021, 01:04 PM RE: corkscrew and speed of sound. - by solid - 09-27-2021, 01:34 PM RE: corkscrew and speed of sound. - by Jens Noriʇzsɔɥ - 09-27-2021, 08:57 PM RE: corkscrew and speed of sound. - by solid - 09-27-2021, 09:13 PM RE: corkscrew and speed of sound. - by julien - 10-07-2021, 07:50 PM RE: corkscrew and speed of sound. - by solid - 12-31-2021, 06:30 PM RE: corkscrew and speed of sound. - by Jens Noriʇzsɔɥ - 01-10-2022, 11:59 AM

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