The perfect way to make big bubbles?

It was in 2016 that the French National Center for Scientific Research and a research team at the University of Rennes announced the ideal size, shape, and speed to create the perfect scoff bubble. Two years later, a study found that the ideal blowing and circular part size was 3.8cm to make many stable soap bubbles. Then, two years later, the Emory University research team published a new research paper on the perfect way to make soap bubbles.

According to research, the main ingredient to make huge soap bubbles is already somewhat elucidated by ordinary people who like soap bubbles. By referring to the method of making soap bubbles on the website used by the research team (Soap Bubble Wiki), we conducted an investigation in the laboratory and measured the speed and pattern of the bubbles breaking, or changed the method to see how it changes.

The most popular recipe for soap bubbles on this site is the addition of a food thickening additive polymer or polyethylene glycol, which is often used in laxatives. By combining these materials, polymers are well entangled to form a strong chain structure for a long time, making it difficult to break bubbles.

The team also explains that changing the length of the polymer chain can make it more entangled, allowing all the mixtures to mix well, creating a surely large bubble. The method the researchers discovered through this study required half a teaspoon of guar powder, three tablespoons of rubbing alcohol, one liter of water, half a teaspoon of baking powder, and three teaspoons of Dawn Professional Detergent. First, add rubbing alcohol to the guar powder and mix. Add 1 liter of water and gently stir for 10 minutes. Let it sit for a few minutes, then gently mix, add baking powder and stir. Finally, add detergent and mix gently to avoid foaming.

According to the research team, it is better to use fibrous strings or ropes to create large, fragile soap bubbles. Because the solution is easily absorbed, it connects the thin film and the rope seamlessly. Related information can be found here .