Soap Bubbles: Two Years Old and Sixty Centimeters in Diameter
A. V. Grosse 1
1 Research Institute of Temple University, 4150 Henry Avenue, Philadelphia, Pennsylvania 19144
Soap bubbles of long life (over 2 years) and large size (over 60 centimeters in diameter, 100 liters volume) have been produced from bubble solutions improved by the addition of water-soluble synthetic organic polymers such as polyvinyl alcohol or polyoxyethylene. The natural life can be defined as the time it takes for the bubble, if left undisturbed, to contract from the original size to a flat film.