Physicists determine optimal bubble recipe for blowing out large bubbles

No matter how old you are, everyone loves to blow bubbles, and the bigger the better. But blowing out a record big bubble requires very precise bubble fluid. According to a paper published in the journal Physical Review Fluids, physicists have identified a key component of mixing different chain-length polymers, which can be blown out of soap film that can stretch thin enough to form huge, but not cracked bubbles.

Physicists determine optimal bubble recipe for blowing out large bubbles

The paper’s co-author, Emory University physicist Justin Burton, took an interest in seeing street performers blowing huge bubbles during a conference in Barcelona. His team found that polymer chains are the key to creating huge bubbles, while polymer chains of different lengths form stronger soap films than single-length polymer chains. Their published formulainclude includes: 1 litre of water, 50 ml of professional detergent, 2 to 3 grams of guar powder, 50 ml of external alcohol, 2 grams of baking powder.