PAUL RAPSON / SCIENCE PHOTO LIBRARY PAUL RAPSON / SCIENCE PHOTO LIBRARY
Soap bubbles on a pentagonal prism frame. Bubble films always attempt to occupy the minimum surface area when stretched between two lines, and they meet other films at straight lines. This is the minimum surface area configuration for this frame: the bubble films form five faces from each pentagon (top and bottom), which meet at centre to form a horizontal pentagonal film. For an image of this frame with a bubble introduced into the centre, see A350/173.
Model release not required. Property release not required.