Figure 21. No. 1 soap bubbles outdoors. The soap bubbles were stable on grass and a wooden deck

From

Practical Chemistry of Long-Lasting Bubbles

Momoko Ueno, Naho Isokawa, Kazuki Fueda, Suzuka Nakahara, Hinako Teshima, Nanami Yamamoto, Haruka Yokoyama, Yukina Noritsugu, Koushi Shibata, Kourin Miyagawa, Seiko Tanaka, Takashi Hirano, Ayako Fujito, Ayaka Takashima, Kenichi Kanno

World Journal of Chemical Education. 2016, 4(2), 32-44 doi:10.12691/wjce-4-2-2