b'Everybody loves bubbles, regardless of age\\u2014the bigger the better. But to blow really big, world-record-scale bubbles requires a very precise bubble mixture. Physicists have determined that a key ingredient is mixing in polymers of varying strand lengths, according to a new paper in Physical Review Fluids. That produces a soap film able to stretch sufficiently thin to make a giant bubble without breaking.\\nLearn more about your ad choices. Visit podcastchoices.com/adchoices'