[RD (OP)]

Is it possible to create a soap bubble floating in air which is a toroidal vortex (doughnut shaped)?

[This question arose from this chat thread http://www.thenakedscientists.com/forum/index.php?topic=9353.0]

[neilep]

I don't see how unless it was held in place by external bubbles that maintain it's toroidal shape....like the way you see square bubbles inside a collection of other ones !!..I think !!


......unless.....I can think that if it was possible to create one with a machine and have it so that the bubble is rolling ...like a smoke ring !!

......beware !..........I'm guestimating here !!...but it would be cool if it could be done !!

[syhprum]

It seem that they occasionally appear but are very rare and I do not think they can be produced to order.

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[neilep]

Excellent link !

[RD (OP)]

Thanks for the link Syhprum.

New Scientist magazine
January 17, 2004

Q: Is it possible to blow a toroidal soap bubble (one shaped like a ring doughnut)? 
And if it is, would it collapse immediately to a sphere?
Could its life be prolonged by spinning its surface, as with smoke rings?

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