Double Bubble
[S | t+ | ★★★]
Double your pleasure with this puzzler: small bubble blows up large one.
Soap Film and String
[S | t+ | —]
A loop of string floating on a soap film is pulled into a perfect circle by surface tension.
Capillary Action
[S | t+ | ★★]
Array of capillary tubes of different bore diameters.
[In-Depth Description]
Minimal Surfaces
[S | t+ | —]
Soap films on wire frames.
Molecular Size
[M | t++ | —]
Molecular size is determined by means of a Langmuir trough.
Holy Boat
[M | t | —]
An open mesh plastic fruit container easily floats on top of water.
Water Drops
[S | t++ | —]
Smaller drops are more spherical. Water drops on Teflon are more spherical, but try adding some soap!