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Author Topic: Is a "doughnut" soap-bubble possible ?  (Read 4301 times)

Offline RD

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Is a "doughnut" soap-bubble possible ?
« on: 15/08/2007 15:55:39 »
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]


 

Offline neilep

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Is a "doughnut" soap-bubble possible ?
« Reply #1 on: 15/08/2007 19:56:27 »
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 !!
« Last Edit: 15/08/2007 19:59:20 by neilep »
 

Offline syhprum

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Is a "doughnut" soap-bubble possible ?
« Reply #2 on: 19/08/2007 07:44:10 »
It seem that they occasionally appear but are very rare and I do not think they can be produced to order.

http://www.tomnoddy.com/press.html
 

Offline neilep

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Is a "doughnut" soap-bubble possible ?
« Reply #3 on: 19/08/2007 14:21:06 »
Excellent link !
 

Offline RD

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Is a "doughnut" soap-bubble possible ?
« Reply #4 on: 20/08/2007 15:46:53 »
Thanks for the link Syhprum.

Quote
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?
http://www.tomnoddy.com/press.html

Great minds think alike  ;D
 
« Last Edit: 20/08/2007 15:52:42 by RD »
 

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Is a "doughnut" soap-bubble possible ?
« Reply #4 on: 20/08/2007 15:46:53 »

 

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