Inside the Bubble
The bubble, made of dish soap and water, exists because it has surface tension. The soap decreases the water’s surface tension and helps to stabilize the bubble, known as the Marangoni effect. The Maragoni effect, by definition, is the mass transfer in a liquid layer due to surface tension differences. The bubble’s is a sphere, as a sphere has the smallest possible surface area for a given volume. In this particular photo, the person on the grass was not intentionally inside of the bubble and the photo was not meant to include the parking lot in the background; it just happened that this one photo appeared to completely encompass my roommate.