Dolphins and Bubble Rings

[Curls]

[media]http://www.youtube.com/watch?v=TMCf7SNUb-Q[/media]

The rings themselves look like this up close.

[media]http://www.youtube.com/watch?v=8bZ0Q3RG-YA&feature=related[/media]
[media]http://www.youtube.com/watch?v=5MGlgvikQ4E&feature=related[/media]

[ClarkWasHere]

That really nice!

How do those rings form though?

[Curls]

[QUOTE=ClarkWasHere;32081056]That really nice!

How do those rings form though?[/QUOTE]

I think sound waves may have something to do with it.

EDIT:

[url]http://bubblerings.com/bubblerings/faq.cfm[/url]

and how to make them

[media]http://www.youtube.com/watch?v=cX_TrDGY3XQ#at=41[/media]