The original poster hasn't clarified precisely
how they created the tower of bubbles, but you can probably do this at home … if you don't mind a mess. Surfactants — like soap — can easily form stable foams, said Donald Freese, a chemical engineer formerly at W.L. Gore. Foams are gas bubbles dispersed in liquid; no foam is perfectly stable, because
bubbles eventually pop and the gas pockets merge, becoming larger and breaking down the overall foam structure. But when
soap bubbles are small and there are few disturbances, foams can stick around and stand up against the forces of gravity for a long time, Freese said. [
Check Out Amazing GIFs of Chemical Reactions]
"Bubbles do pop, but the rate that they pop can be very slow for some types of surfactants if they are concentrated enough and if the system is free of oily contaminants and any other disrupting forces, such as airflow," Freese said.
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