File:23. Звучни виљушки.ogv
From HandWiki
23._Звучни_виљушки.ogv (file size: 59.38 MB, MIME type: application/ogg)
This file is from a shared repository and may be used by other projects. The description on its file description page there is shown below.
Summary
Description23. Звучни виљушки.ogv |
Македонски: Опит со две звучни виљушки кои осцилираат на еднакви честоти. Едната виљушка се удира со гумено чеканче. Иако првата виљушка не е удрена, другата виљушка видно трепери поради осцилацијата предизвикана од периодичната промена на притисокот и густината на воздухот со удирањето на другата виљушка, создавајќи звучна резонанција меѓу виљушките. Меѓутоа, ако на еден крак на виљушките се додаде парче метал и се поместува, тоа дава сè послаба резонанција и звукот не се пренесува делотворно. Извел: проф. Оливер Зајков. Институт за физика на Природно-математичкиот факултет во Скопје.
English: Experiment using two tuning forks oscillating at the same frequency. One of the forks is being hit with a rubberised mallet. Although the second tuning fork hasn't been hit, it becomes visibly and audibly excited due to the oscillation caused by the periodic change in the pressure and density of the air originally caused by hitting the first fork, creating an acoustic resonance between the forks. However, if we attach a weight to one of the prongs of the second tuning fork, we see that the effect dampens, and the excitations become less pronounced as resonance isn't achieved as effectively. Performed by Prof. Oliver Zajkov at the Physics Institute at the Ss. Cyril and Methodius University of Skopje, Macedonia.
Français : Différentes démonstrations impliquant des diapasons de même fréquence. Ainsi, lorsque l'un est frappé avec un marteau en caoutchouc, l'autre est entraîné par résonance acoustique engendrée par la vibration de l'air créée par le premier. Cependant, si un poids est attaché à l'une des branches de l'un des diapasons, la fréquence de celui-ci change et sa résonance en est considérablement réduite. Cependant, lorsque les deux diapasons sont frappés selon cette configuration, un battement apparaît. Expérience réalisée et expliquée par le professeur Oliver Zajkov de l'Institut de physique de l'université Saints-Cyrille-et-Méthode de Skopje de Macédoine. |
Date | |
Source | Own work |
Author | Andrejdam |
This video was taken during Wikiexperiments 2015 set up by Shared Knowledge.
You can see all videos in category Physics Wikiexperiments. |
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
Items portrayed in this file
depicts
some value
21 September 2015
application/ogg
df202b4c44559c5d8caa0617250ceb5618d79488
62,267,811 byte
117.077333333333 second
1,080 pixel
1,920 pixel
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Dimensions | User | Comment | |
---|---|---|---|---|
current | 07:18, 29 January 2016 | (59.38 MB) | imagescommonswiki>Andrejdam | User created page with UploadWizard |
File usage
The following file is a duplicate of this file (more details):
- File:23. Звучни виљушки.ogv from Wikimedia Commons
There are no pages that use this file.
Retrieved from "https://handwiki.org/wiki/File:23._Звучни_виљушки.ogv"