My wife and I are often looking for new science demonstrations to do with children. The latest one she found was "bouncing soap bubbles".
For reasons of convenience [laziness?] we actually bought the kit from Steve Spangler.
It is pretty cool.
A couple of interesting scientific questions are:
Why do the gloves help?
The claim is that the grease on your hands makes bursting the bubbles easier.
Why does glycerin make the soap bubbles stronger?
Why does "ageing" the soap solution for 24 hours lead to stronger bubbles?
Journal of Chemical Education is often a source of good ideas and science discussions. Here are two relevant articles.
Clean Chemistry: Entertaining and Educational Activities with Soap Bubbles
Kathryn R. Williams
Soap Films and the Joy of Bubbles
Mary E. Saecker
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Is it something to do with breakdown of the Born-Oppenheimer approximation? In molecular spectroscopy you occasionally hear this term thro... -
I welcome discussion on this point. I don't think it is as sensitive or as important a topic as the author order on papers. With rega...
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Nitrogen fluoride (NF) seems like a very simple molecule and you would think it would very well understood, particularly as it is small enou...
Glycerine has humectant properties. This means glycerine absorbs moisture. Then a detailed explanation is given on how glycerine prevent evaporation of moisture in surface of a soap film here in this web site which probably answers the query on glycerine making soap bubbled stronger.
ReplyDeletehttp://soapbubble.dk/english/science/glycerin-in-soap-bubble-mixtures/