Un peu de lecture...
http://tpe.propagationduson.pagesperso-o...%20son.htm
In English:
https://www.docsity.com/en/news/physics/...tion-gifs/
http://tpe.propagationduson.pagesperso-o...%20son.htm
In English:
https://www.docsity.com/en/news/physics/...tion-gifs/