When ExploratoRio rolls around, I worry about the bubble exhibits. The bubble formulas given in the original recipes were developed in the 1990s, before dishwashing detergents were concentrated and who knows what else.
At last year's High School Share-a-thon (AAPT's national meeting Show & Tell), Chicago-area physics teacher shared a link to a site that seems devoted with keeping up with the latest on soap bubble solutions.
Soap Bubble Wiki
What will be shared at this year's share-a-thon? We'll find out at the 2013 AAPT Summer Meeting in Portland. The share-a-thon is scheduled for Sunday, July 14, 6pm-8pm in the Hilton's Broadway III/IV.
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