The Naked Scientists

The Naked Scientists Forum

Author Topic: how long do bubbles last?  (Read 7407 times)

paul.fr

  • Guest
how long do bubbles last?
« on: 27/07/2007 22:25:24 »
is there a given time for an average bubbles, erm..."life span". What solution would make the longest lasting bubbles?


 

Offline eric l

  • Hero Member
  • *****
  • Posts: 514
    • View Profile
how long do bubbles last?
« Reply #1 on: 28/07/2007 10:10:52 »
Are you thinking about foam or about soap bubbles floating freely in the air ?
With foam, there is the problem of drainage :  the liquid from bubbles that have collapsed has to be drained off, which makes viscosity very important.  This is negligible with bubbles floating freely in the air.
There is also a difference between trying to make large bubbles and long lasting bubbles.
 

Offline Bored chemist

  • Neilep Level Member
  • ******
  • Posts: 8659
  • Thanked: 42 times
    • View Profile
how long do bubbles last?
« Reply #2 on: 28/07/2007 16:07:26 »
Bubles in solids (like amber) last essentially forever.
Bubles formed from liqiuds burst when they become too thin due to draining or evaporation.
 

Offline kdlynn

  • Neilep Level Member
  • ******
  • Posts: 2851
    • View Profile
how long do bubbles last?
« Reply #3 on: 28/07/2007 17:06:42 »
at work we sell touchable liquid bubbles. they don't break when they land or are caught. i'll look and see what's in those
 

Offline kdlynn

  • Neilep Level Member
  • ******
  • Posts: 2851
    • View Profile
how long do bubbles last?
« Reply #4 on: 29/07/2007 04:46:15 »
there were no ingredients listed... naturally
 

Offline Karen W.

  • Moderator
  • Naked Science Forum GOD!
  • *****
  • Posts: 31653
  • Thanked: 5 times
  • "come fly with me"
    • View Profile
how long do bubbles last?
« Reply #5 on: 29/07/2007 09:00:49 »
Kadie if you add more Glycerin to regular bubbles they become more elastic and are easier to catch and hold. There is a question about bubbles here in the forum somewhere else I can't remember if it was mine, Neil's or someone else's but At school some said to have the kids rub bubbles or get their hands wet to catch them and it worked. We add glycerin here to make them more durable and elastic!
 

another_someone

  • Guest
how long do bubbles last?
« Reply #6 on: 29/07/2007 13:24:22 »
Bubbles:



Lest someone is concerned, there is quite a bit of perspective distortion in the above - the lady was several hundred yards away, and the bubbles quite close.

The bubbles themselves were maybe a couple of feet across (cannot recall exactly, it was about 3 years ago, and I did not have a measuring rod with me).
 

The Naked Scientists Forum

how long do bubbles last?
« Reply #6 on: 29/07/2007 13:24:22 »

 

SMF 2.0.10 | SMF © 2015, Simple Machines
SMFAds for Free Forums