File:94. Менување на човечки глас со сулфур хексафлуорид и хелиум.ogv
Original file (Ogg multiplexed audio/video file, Theora/Vorbis, length 1 min 56 s, 1,920 × 1,080 pixels, 6 Mbps overall, file size: 83.23 MB)
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English: Sound frequency in various gases
The sound frequency in different gases (and due to that, the vocal timbre) is different in atmosphere made out of air, helium and sulfur hexafluoride. The frequency is dependent on the mass of the oscillating gas, so under the same experimental conditions, this dependence is valid: where M denotes the molar mass of the gas. The experiment is performed with air, helium, and sulfur hexafluoride. The sound frequency can vary significantly, as can be seen from the equation. Performed by the retired Prof. PhD Vladimir Petruševski with the help of the Prof. PhD Miha Bukleski. The planning of the experiment also included the students Mihail Trajkov and Darko Stojčev, Department of Chemistry, FNSM, Ss. Cyril and Methodius University, Skopje, Macedonia.Македонски: Фреквенција на звукот во различни гасови
Фреквенцијата на звукот (а поради тоа и бојата на гласот) е различна во атмосфера од воздух, хелиум и сулфур хексафлуорид. Се работи за тоа што фреквенцијата зависи од масата на гасот што осцилира, па при исти опитни услови, важи зависноста од видот: каде со М е означена моларната маса на гасот. Работено е со воздух, хелиум и сулфур хексафлуорид. Фреквенцијата на звукот може да варира значително, како што се гледа од формулата. Изведено од пензионираниот Проф. д-р Владимир Петрушевски со помош од Проф. д-р Миха Буклески. Во планирањето на опитот, исто така беа вклучени студентите Михаил Трајков и Дарко Стојчев, Институт за хемија, ПМФ, УКИМ, Скопје, Македонија. |
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| Source | Own work |
| Author | Дени Ингилизовски |
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This file was taken during Wikiexperiments 2023 set up by Shared Knowledge.
You can see all the videos and images in the categories Chemistry experiments by Shared Knowledge, Physics experiments by Shared Knowledge, Biology experiments by Shared Knowledge and Wikiexperiments.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 21:31, 23 February 2023 | 1 min 56 s, 1,920 × 1,080 (83.23 MB) | Dandarmkd (talk | contribs) | Uploaded own work with UploadWizard |
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